Search This Blog

Monday, May 13, 2019

Religious persecution

From Wikipedia, the free encyclopedia

Religious persecution is the systematic mistreatment of an individual or group of individuals as a response to their religious beliefs or affiliations or lack thereof. The tendency of societies or groups within society to alienate or repress different subcultures is a recurrent theme in human history. Moreover, because a person's religion often determines to a significant extent his or her morality, worldview, self-image, attitudes towards others, and overall personal identity, religious differences can be significant cultural, personal, and social factors. 

Religious persecution may be triggered by religious bigotry (i.e. members of a dominant group denigrating religions other than their own) or by the state when it views a particular religious group as a threat to its interests or security. At a societal level, this dehumanisation of a particular religious group may readily turn into violence or other forms of persecution. Indeed, in many countries, religious persecution has resulted in so much violence that it is considered a human rights problem.

Definition

Religious persecution is defined as violence or discrimination against religious minorities, actions intending to deprive political rights and force minorities to assimilate, leave, or live as second-class citizen. In the aspect of state policy, it may be defined as violations on freedom of thought, conscience and belief spread by systematic and active state policy and actions of harassment, intimidation and punishment that infringes or threatens the right to life, integrity or liberty. The distinction with religious intolerance is that the latter in most cases is in the sentiment of the population, which may be tolerated or encouraged by the state. Denial of civil rights on the basis of religion is most often described as religious discrimination, rather than religious persecution.

Examples of persecution is confiscation or destruction of property, incitement to hate, arrest, imprisonment, beatings, torture, murder, and execution. Religious persecution can be considered the opposite of freedom of religion

Bateman has differentiated different degrees of persecution. "It must be personally costly... It must be unjust and undeserved... it must be a direct result of one's faith."

Forms

Cleansing

"Religious cleansing" is a term that is sometimes used to refer to the removal of a population from a certain territory based on its religion. Throughout antiquity, population cleansing was largely motivated by economic and political factors, although ethnic factors occasionally played a role. During the Middle Ages, population cleansing took on a largely religious character. The religious motivation lost much of its salience early in the modern era, although until the 18th century ethnic enmity in Europe remained couched in religious terms. Richard Dawkins has argued that references to ethnic cleansing in the former Yugoslavia and Iraq are euphemisms for what should more accurately be called religious cleansing. According to Adrian Koopman, the widespread use of the term ethnic cleansing in such cases suggests that in many situations there is confusion between ethnicity and religion.

Ethnicity

During Nazi rule, Jews were forced to wear yellow stars identifying them as such. Jews are an ethno-religious group and Nazi persecution was based on their race
 
Other acts of violence, such as war, torture, and ethnic cleansing not aimed at religion in particular, may nevertheless take on the qualities of religious persecution when one or more of the parties involved are characterized by religious homogeneity; an example being when conflicting populations that belong to different ethnic groups often also belong to different religions or denominations. The difference between religious and ethnic identity might sometimes be obscure; cases of genocide in the 20th century cannot be explained in full by citing religious differences. Still, cases such as the Greek genocide, the Armenian Genocide, and the Assyrian Genocide are sometimes seen as religious persecution and blur the lines between ethnic and religious violence.

Since the Early modern period, there were increased religious cleansing entwined with ethnic elements. As religion is an important or central marker in ethnic identity, some conflicts can be described as "ethno-religious conflicts".

Nazi antisemitism provides another example of the contentious divide between ethnic and religious persecution, because Nazi propaganda tended to construct its image of Jews as race, and de-emphasized Jews as being defined by their religion. The Holocaust made no distinction between secular Jews, atheistic Jews, orthodox Jews and Jews that had converted to Christianity. The Nazis also persecuted the Catholic Church in Germany and Poland.

Persecution for heresy and blasphemy

The persecution of beliefs that are deemed schismatic is one thing; the persecution of beliefs that are deemed heretical or blasphemous is another. Although a public disagreement on secondary matters might be serious enough, it has often only led to religious discrimination. A public renunciation of the core elements of a religious doctrine under the same circumstances would, on the other hand, have put one in far greater danger. While dissenters from the official Church only faced fines and imprisonment in Protestant England, six people were executed for heresy or blasphemy during the reign of Elizabeth I, and two more were executed in 1612 under James I.

Similarly, heretical sects like Cathars, Waldensians and Lollards were brutally suppressed in Western Europe, while, at the same time, Catholic Christians lived side-by-side with 'schismatic' Orthodox Christians after the East-West Schism in the borderlands of Eastern Europe.

Persecution for political reasons

Protestant Bishop John Hooper was burned at the stake by Queen Mary I of England
 
More than 300 Roman Catholics were put to death by English governments between 1535 and 1681 for treason, thus for secular rather than religious offenses. In 1570, Pope Pius V issued his papal bull Regnans in Excelsis, which absolved Catholics from their obligations to the government. This dramatically worsened the situation of the Catholics in England. English governments continued to fear the fictitious Popish Plot. The 1584 Parliament of England, declared in "An Act against Jesuits, seminary priests, and such other like disobedient persons" that the purpose of Jesuit missionaries who had come to Britain was "to stir up and move sedition, rebellion and open hostility". Consequently, Jesuit priests like Saint John Ogilvie were hanged. This somehow contrasts with the image of the Elizabethan era as the time of William Shakespeare, but compared to the antecedent Marian Persecutions there is an important difference to consider. Mary I of England had been motivated by a religious zeal to purge heresy from her land, and during her short reign from 1553 to 1558 about 290 Protestants had been burned at the stake for heresy, whereas Elizabeth I of England "acted out of fear for the security of her realm."

By location

The descriptive use of the term religious persecution is rather difficult. Religious persecution has occurred in different historical, geographical and social contexts since at least antiquity. Until the 18th century, some groups were nearly universally persecuted for their views about religion, such as atheists, Jews, and Zoroastrians.

Roman Empire

Saint Peter, an apostle of Jesus, was executed by the Romans
 
Early Christianity also came into conflict with the Roman Empire, and may have been more threatening to the established polytheistic order than had been Judaism, because of the importance of evangelism in Christianity. Under Nero, the Jewish exemption from the requirement to participate in public cults was lifted and Rome began to actively persecute monotheists. This persecution ended in 313 AD with the Edict of Milan, and Christianity was made the official religion of the empire in 380 AD. By the eighth century Christianity had attained a clear ascendancy across Europe and neighboring regions, and a period of consolidation began marked by the pursuit of heretics, heathens, Jews, Muslims, and various other religious groups.

Early modern England

One period of religious persecution which has been extensively studied is early modern England, since the rejection of religious persecution, now common in the Western world, originated there. The English 'Call for Toleration' was a turning point in the Christian debate on persecution and toleration, and early modern England stands out to the historians as a place and time in which literally "hundreds of books and tracts were published either for or against religious toleration."

The most ambitious chronicle of that time is W.K.Jordan's magnum opus The Development of Religious Toleration in England, 1558-1660 (four volumes, published 1932-1940). Jordan wrote as the threat of fascism rose in Europe, and this work is seen as a defense of the fragile values of humanism and tolerance. More recent introductions to this period are Persecution and Toleration in Protestant England, 1558–1689 (2000) by John Coffey and Charitable hatred. Tolerance and intolerance in England, 1500-1700 (2006) by Alexandra Walsham. To understand why religious persecution has occurred, historians like Coffey "pay close attention to what the persecutors said they were doing."

Ecclesiastical dissent and civil tolerance

No religion is free from internal dissent, although the degree of dissent that is tolerated within a particular religious organization can strongly vary. This degree of diversity tolerated within a particular church is described as ecclesiastical tolerance, and is one form of religious toleration. However, when people nowadays speak of religious tolerance, they most often mean civil tolerance, which refers to the degree of religious diversity that is tolerated within the state.

In the absence of civil toleration, someone who finds himself in disagreement with his congregation doesn't have the option to leave and chose a different faith - simply because there is only one recognized faith in the country (at least officially). In modern western civil law any citizen may join and leave a religious organization at will; In western societies, this is taken for granted, but actually, this legal separation of Church and State only started to emerge a few centuries ago.

In the Christian debate on persecution and toleration, the notion of civil tolerance allowed Christian theologians to reconcile Jesus' commandment to love one's enemies with other parts of the New Testament that are rather strict regarding dissent within the church. Before that, theologians like Joseph Hall had reasoned from the ecclesiastical intolerance of the early Christian church in the New Testament to the civil intolerance of the Christian state.

Europe

Religious uniformity in early modern Europe

By contrast to the notion of civil tolerance, in early modern Europe the subjects were required to attend the state church; This attitude can be described as territoriality or religious uniformity, and its underlying assumption is brought to a point by a statement of the Anglican theologian Richard Hooker: "There is not any man of the Church of England but the same man is also a member of the [English] commonwealth; nor any man a member of the commonwealth, which is not also of the Church of England."

Before a vigorous debate about religious persecution took place in England (starting in the 1640s), for centuries in Europe, religion had been tied to territory. In England there had been several Acts of Uniformity; in continental Europe the Latin phrase "cuius regio, eius religio" had been coined in the 16th century and applied as a fundament for the Peace of Augsburg (1555). It was pushed to the extreme by absolutist regimes, particularly by the French kings Louis XIV and his successors. It was under their rule that Catholicism became the sole compulsory allowed religion in France and that the huguenots had to massively leave the country. Persecution meant that the state was committed to secure religious uniformity by coercive measures, as eminently obvious in a statement of Roger L'Estrange: "That which you call persecution, I translate Uniformity".

However, in the 17th century writers like Pierre Bayle, John Locke, Richard Overton and Roger William broke the link between territory and faith, which eventually resulted in a shift from territoriality to religious voluntarism. It was Locke who, in his Letter Concerning Toleration, defined the state in purely secular terms: "The commonwealth seems to me to be a society of men constituted only for the procuring, preserving, and advancing their own civil interests." Concerning the church, he went on: "A church, then, I take to be a voluntary society of men, joining themselves together of their own accord." With this treatise, John Locke laid one of the most important intellectual foundations of the separation of church and state, which ultimately led to the secular state.

Russia

The Bishop of Vladimir Feodor turned some people into slaves, others were locked in prison, cut their heads, burnt eyes, cut tongues or crucified on walls. Some heretics were executed by burning them alive. According to an inscription of Khan Mengual-Temir, Metropolitan Kiril was granted the right to heavily punish with death for blasphemy against the Orthodox Church or breach of ecclesiastical privileges. He advised all means of destruction to be used against heretics, but without bloodshed, in the name of 'saving souls'. Heretics were drowned. Novgorod Bishop Gennady Gonzov turned to Tsar Ivan III requesting the death of heretics. Gennady admired the Spanish inquisitors, especially his contemporary Torquemada, who for 15 years of inquisition activity burned and punished thousands of people. As in Rome, persecuted fled to depopulated areas. The most terrible punishment was considered an underground pit, where rats lived. Some people had been imprisoned and tied to the wall there, and untied after their death. Old Believers were persecuted and executed, the order was that even those renouncing completely their beliefs and baptized in the state Church to be lynched without mercy. The writer Lomonosov opposed the religious teachings and by his initiative a scientific book against them was published. The book was destroyed, the Russian synod insisted Lomonosov's works to be burned and requested his punishment.
...were cutting heads, hanging, some by the neck, some by the foot, many of them were stabbed with sharp sticks and impaled on hooks. This included the tethering to a ponytail, drowning and freezing people alive in lakes. The winners did not spare even the sick and the elderly, taking them out of the monastery and throwing them mercilessly in icy 'vises'. The words step back, the pen does not move, in eternal darkness the ancient Solovetsky monastery is going. Of the more than 500 people, only a few managed to avoid the terrible court.

Contemporary

Although his book was written before the September 11 attacks, John Coffey explicitly compares the English fear of the Popish Plot with the contemporary Islamophobia in the Western world. Among the Muslims imprisoned in the Guantanamo Bay detention camp there also were Mehdi Ghezali and Murat Kurnaz who could not have been found to have any connections with terrorism, but had traveled to Afghanistan and Pakistan because of their religious interests.

By religion

Persecutions of atheists

Used before the 18th century as an insult, atheism was punishable by death in ancient Greece, in ancient Israel, in Christian countries during the Middle Ages and in Muslim countries. Today, atheism is punishable by death in 13 countries (Afghanistan, Iran, Malaysia, Maldives, Mauritania, Nigeria, Pakistan, Qatar, Saudi Arabia, Somalia, Sudan, United Arab Emirates and Yemen), all of them Muslim, while "the overwhelming majority" of the 192 United Nation member countries "at best discriminate against citizens who have no belief in a god and at worst can jail them for offences dubbed blasphemy".

State atheism

State atheism has been defined by David Kowalewski as the official "promotion of atheism" by a government, typically by active suppression of religious freedom and practice. It is a misnomer referring to a government's anti-clericalism, which opposes religious institutional power and influence, real or alleged, in all aspects of public and political life, including the involvement of religion in the everyday life of the citizen.

State atheism was first practised during a brief period in Revolutionary France and repeated only in Revolutionary Mexico and Communist states. The Soviet Union had a long history of state atheism, in which social success largely required individuals to profess atheism, stay away from churches and even vandalize them; this attitude was especially militant during the middle Stalinist era from 1929-1939. The Soviet Union attempted to suppress religion over wide areas of its influence, including places like central Asia, and the post-World War II Eastern bloc. One state within that bloc, the Socialist People's Republic of Albania under Enver Hoxha, went so far as to officially ban all religious practices.

Persecution of Baha'is

The Bahá'ís are Iran's largest religious minority, and Iran is the location of one of the largest Bahá'í populations in the world. Bahá'ís in Iran have been subject to unwarranted arrests, false imprisonment, beatings, torture, unjustified executions, confiscation and destruction of property owned by individuals and the Bahá'í community, denial of employment, denial of government benefits, denial of civil rights and liberties, and denial of access to higher education.

More recently, in the later months of 2005, an intensive anti-Bahá'í campaign was conducted by Iranian newspapers and radio stations. The state-run and influential Kayhan newspaper, whose managing editor is appointed by Iran's supreme leader, Ayatollah Khamenei, ran nearly three dozen articles defaming the Bahá'í Faith. Furthermore, a confidential letter sent on October 29, 2005 by the Chairman of the Command Headquarters of the Armed Forced in Iran states that the Supreme Leader of Iran, Ayatollah Khamenei has instructed the Command Headquarters to identify people who adhere to the Bahá'í Faith and to monitor their activities and gather any and all information about the members of the Bahá'í Faith. The letter was brought to the attention of the international community by Asma Jahangir, the Special Rapporteur of the United Nations Commission on Human Rights on freedom of religion or belief, in a March 20, 2006 press release. 

In the press release the Special Rapporteur states that she "is highly concerned by information she has received concerning the treatment of members of the Bahá'í community in Iran." She further states that "The Special Rapporteur is concerned that this latest development indicates that the situation with regard to religious minorities in Iran is, in fact, deteriorating.".

Persecution of Buddhists

Persecution of Buddhists was a widespread phenomenon throughout the history of Buddhism lasting to this day, beginning as early as the 3rd century AD by the Zoroastrian Sassanid Empire. Anti-Buddhist sentiments in Imperial China between the 5th and 10th century led to the Four Buddhist Persecutions in China of which the Great Anti-Buddhist Persecution of 845 was probably the most severe. In the 20th century Buddhists were persecuted by Asian communist states and parties, Imperial Japan and by the Kuomintang among others.

Persecution of Christians

According to tradition, early Christians were fed to lions in the Colosseum of Rome
 
The persecution of Christians is for the most part, historical. Even from the beginnings of the religion as a movement within Judaism, Early Christians were persecuted for their faith at the hands of both Jews and the Roman Empire, which controlled much of the areas where Christianity was first distributed. This continued from the first century until the early fourth, when the religion was legalised by the Edict of Milan, eventually becoming the State church of the Roman Empire

Today, Christians are persecuted in Iran for proselytising. Proselytising is illegal in Iran.

Persecution of Falun Gong

The persecution of the Falun Gong spiritual practice began with campaigns initiated in 1999 by the Chinese Communist Party to eliminate Falun Gong in China. It is characterised by multifaceted propaganda campaign, a program of enforced ideological conversion and re-education, and a variety of extralegal coercive measures such as arbitrary arrests, forced labor, and physical torture, sometimes resulting in death.

There have being reports of Organ harvesting of Falun Gong practitioners in China. Several researchers—most notably Canadian human rights lawyer David Matas, former parliamentarian David Kilgour, and investigative journalist Ethan Gutmann—estimate that tens of thousands of Falun Gong prisoners of conscience have been killed to supply a lucrative trade in human organs and cadavers.

Persecution of Hindus

The Bangladesh Liberation War (1971) resulted in one of the largest genocides of the 20th century. While estimates of the number of casualties was 3,000,000, it is reasonably certain that Hindus bore a disproportionate brunt of the Pakistan Army's onslaught against the Bengali population of what was East Pakistan. An article in Time magazine dated 2 August 1971, stated "The Hindus, who account for three-fourths of the refugees and a majority of the dead, have borne the brunt of the Muslim military hatred." Senator Edward Kennedy wrote in a report that was part of United States Senate Committee on Foreign Relations testimony dated 1 November 1971, "Hardest hit have been members of the Hindu community who have been robbed of their lands and shops, systematically slaughtered, and in some places, painted with yellow patches marked "H". All of this has been officially sanctioned, ordered and implemented under martial law from Islamabad". In the same report, Senator Kennedy reported that 80% of the refugees in India were Hindus and according to numerous international relief agencies such as UNESCO and World Health Organization the number of East Pakistani refugees at their peak in India was close to 10 million. Given that the Hindu population in East Pakistan was around 11 million in 1971, this suggests that up to 8 million, or more than 70% of the Hindu population had fled the country.The Pulitzer Prize–winning journalist Sydney Schanberg covered the start of the war and wrote extensively on the suffering of the East Bengalis, including the Hindus both during and after the conflict. In a syndicated column "The Pakistani Slaughter That Nixon Ignored", he wrote about his return to liberated Bangladesh in 1972. "Other reminders were the yellow "H"s the Pakistanis had painted on the homes of Hindus, particular targets of the Muslim army" (by "Muslim army", meaning the Pakistan Army, which had targeted Bengali Muslims as well), (Newsday, 29 April 1994).

Hindus constitute approximately 0.5% of the total population of the United States. Hindus in the US enjoy both de jure and de facto legal equality. However, a series of attacks were made on people Indian origin by a street gang called the "Dotbusters" in New Jersey in 1987, the dot signifying the Bindi dot sticker worn on the forehead by Indian women. The lackadaisical attitude of the local police prompted the South Asian community to arrange small groups all across the state to fight back against the street gang. The perpetrators have been put to trial. On 2 January 2012, a Hindu worship center in New York City was firebombed. The Dotbusters were primarily based in New York and New Jersey and committed most of their crimes in Jersey City. A number of perpetrators have been brought to trial for these assaults. Although tougher anti-hate crime laws were passed by the New Jersey legislature in 1990, the attacks continued, with 58 cases of hate crimes against Indians in New Jersey reported in 1991.

In Bangladesh, on 28 February 2013, the International Crimes Tribunal sentenced Delwar Hossain Sayeedi, the Vice President of the Jamaat-e-Islami to death for the war crimes committed during the 1971 Bangladesh Liberation War. Following the sentence, activists of Jamaat-e-Islami and its student wing Islami Chhatra Shibir attacked the Hindus in different parts of the country. Hindu properties were looted, Hindu houses were burnt into ashes and Hindu temples were desecrated and set on fire. While the government has held the Jamaat-e-Islami responsible for the attacks on the minorities, the Jamaat-e-Islami leadership has denied any involvement. The minority leaders have protested the attacks and appealed for justice. The Supreme Court of Bangladesh has directed the law enforcement to start suo motu investigation into the attacks. US Ambassador to Bangladesh express concern about attack of Jamaat on Bengali Hindu community. The violence included the looting of Hindu properties and businesses, the burning of Hindu homes, rape of Hindu women and desecration and destruction of Hindu temples. According to community leaders, more than 50 Hindu temples and 1,500 Hindu homes were destroyed in 20 districts.

Persecutions of Jews

Woodcut of the Seleucid persecution depicting martyrs refusing to sacrifice from Die Bibel in Bildern
 
A major component of Jewish history, persecutions have been committed by Seleucids, ancient Greeks, ancient Romans, Christians (Catholics, Orthodox and Protestant), Muslims, Communists, Nazis, etc. Some of the most important events constituting this history include the 1066 Granada massacre, the Rhineland massacres, the Alhambra Decree after the Reconquista and the creation of the Spanish Inquisition, the publication of On the Jews and Their Lies by Martin Luther which furthered Protestant anti-Judaism and was later used to strengthen German antisemitism in pogroms and the Holocaust.

Persecution of Samaritans

The Samaritan Temple at Mount Gerizim was destroyed by John Hyrcanus in about 128 BC, partly because it was attracting some northern Jews as a place of worship. In 107 BC, Hyrcanus destroyed Schechem. In the seventeenth century, Muslims from Nablus forced some Samaritans to convert to Islam and forbade access to Mount Gerizim.

Persecution of Muslims

The French military in Algeria
 
Persecution of Muslims is the religious persecution inflicted upon followers of the Islamic faith. In the early days of Islam at Mecca, the new Muslims were often subjected to abuse and persecution by the pagan Meccans (often called Mushrikin: the unbelievers or polytheists).

Muslims have been the target of persecution ever since the emergence of Islam, sometimes to the point of being martyred for their faith.

In the 20th century, Muslims were persecuted by various governments including Myanmar, French, Italia, China, and many more.

Persecution of minorities in Islamic lands

Victims of Muslim persecution include Jews, Christians, Zoroastrians, Hindus, Buddhists, Bahá'ís,, Serers, and Atheists. Muslim persecution of fellow Muslims include as victims Shia, Ahmadis, Sufi, Alevis and Salafis.

Persecutions of Sikhs

The 1984 anti-Sikhs riots were a series of pogroms directed against Sikhs in India, by anti-Sikh mobs, in response to the assassination of Indira Gandhi by her Sikh bodyguards. There were more than 8,000 deaths, including 3,000 in Delhi. In June 1984, during Operation Blue Star, Indira Gandhi ordered the Indian Army to attack the Golden Temple and eliminate any insurgents, as it had been occupied by Sikh separatists who were stockpiling weapons. Later operations by Indian paramilitary forces were initiated to clear the separatists from the countryside of Punjab state.

The violence in Delhi was triggered by the assassination of Indira Gandhi, India's prime minister, on 31 October 1984, by two of her Sikh bodyguards in response to her actions authorising the military operation. After the assassination following Operation Blue Star, many Indian National Congress workers including Jagdish Tytler, Sajjan Kumar and Kamal Nath were accused of inciting and participating in riots targeting the Sikh population of the capital. The Indian government reported 2,700 deaths in the ensuing chaos. In the aftermath of the riots, the Indian government reported 20,000 had fled the city, however the People's Union for Civil Liberties reported "at least" 1,000 displaced persons. The most affected regions were the Sikh neighbourhoods in Delhi. The Central Bureau of Investigation, the main Indian investigating agency, is of the opinion that the acts of violence were organized with the support from the then Delhi police officials and the central government headed by Indira Gandhi's son, Rajiv Gandhi. Rajiv Gandhi was sworn in as Prime Minister after his mother's death and, when asked about the riots, said "when a big tree falls (Mrs. Gandhi's death), the earth shakes (occurrence of riots)" thus trying to justify communal strife.

There are allegations that the Indian National Congress government at that time destroyed evidence and shielded the guilty. The Asian Age front-page story called the government actions "the Mother of all Cover-ups" There are allegations that the violence was led and often perpetrated by Indian National Congress activists and sympathisers during the riots. The government, then led by the Congress, was widely criticised for doing very little at the time, possibly acting as a conspirator. The conspiracy theory is supported by the fact that voting lists were used to identify Sikh families. Despite their communal conflict and riots record, the Indian National Congress claims to be a secular party.

Persecution of Serers

The persecution of the Serer people of Senegal, the Gambia and Mauritania is multifaceted, and it includes both religious and ethnic elements. Religious and ethnic persecution of the Serer people dates back to the 11th century when King War Jabi usurped the throne of Tekrur (part of present-day Senegal) in 1030, and by 1035, introduced Sharia law and forced his subjects to submit to Islam. With the assistance of his son (Leb), their Almoravid allies and other African ethnic groups who have embraced Islam, the Muslim coalition army launched jihads against the Serer people of Tekrur who refused to abandon Serer religion in favour of Islam. The number of Serer deaths are unknown, but it triggered the exodus of the Serers of Tekrur to the south following their defeat, where they were granted asylum by the lamanes. Persecution of the Serer people continued from the medieval era to the 19th century, resulting in the Battle of Fandane-Thiouthioune. From the 20th to the 21st centuries, persecution of the Serers is less obvious, nevertheless they are the object of scorn and prejudice.

Neuropsychology

From Wikipedia, the free encyclopedia

Neuropsychology is the study and characterization of the behavioral modifications that follow a neurological trauma or condition. It is both an experimental and clinical field of psychology that aims to understand how behavior and cognition are influenced by brain functioning and is concerned with the diagnosis and treatment of behavioral and cognitive effects of neurological disorders. Whereas classical neurology focuses on the pathology of the nervous system and classical psychology is largely divorced from it, neuropsychology seeks to discover how the brain correlates with the mind through the study of neurological patients. It thus shares concepts and concerns with neuropsychiatry and with behavioral neurology in general. The term neuropsychology has been applied to lesion studies in humans and animals. It has also been applied in efforts to record electrical activity from individual cells (or groups of cells) in higher primates (including some studies of human patients).
 
In practice, neuropsychologists tend to work in research settings (universities, laboratories or research institutions), clinical settings (medical hospitals or rehabilitation settings, often involved in assessing or treating patients with neuropsychological problems), or forensic settings or industry (often as clinical-trial consultants where CNS function is a concern).

History

Neuropsychology is a relatively new discipline within the field of psychology. The first textbook defining the field, Fundamentals of Human Neuropsychology, was initially published by Kolb and Whishaw in 1980. However, the history of its development can be traced back to the Third Dynasty in ancient Egypt, perhaps even earlier. There is much debate as to when societies started considering the functions of different organs. For many centuries, the brain was thought useless and was often discarded during burial processes and autopsies. As the field of medicine developed its understanding of human anatomy and physiology, different theories were developed as to why the body functioned the way it did. Many times, bodily functions were approached from a religious point of view and abnormalities were blamed on bad spirits and the gods. The brain has not always been considered the center of the functioning body. It has taken hundreds of years to develop our understanding of the brain and how it affects our behaviors.

Ancient Egypt

In ancient Egypt, writings on medicine date from the time of the priest Imhotep. They took a more scientific approach to medicine and disease, describing the brain, trauma, abnormalities, and remedies for reference for future physicians. Despite this, Egyptians saw the heart not the brain as the seat of the soul.

Aristotle

Senses, perception, memory, dreams, action in Aristotle's biology. Impressions are stored in the seat of perception, linked by his Laws of Association (similarity, contrast, and contiguity).
 
Aristotle reinforced this focus on the heart which originated in Egypt. He believed the heart to be in control of mental processes, and looked on the brain, due to its inert nature, as a mechanism for cooling the heat generated by the heart. He drew his conclusions based on the empirical study of animals. He found that while their brains were cold to the touch and that such contact did not trigger any movements, the heart was warm and active, accelerating and slowing dependent on mood. Such beliefs were upheld by many for years to come, persisting through the Middle Ages and the Renaissance period until they began to falter in the 17th Century due to further research. The influence of Aristotle in the development of neuropsychology is evident within language used in modern day, since we "follow our hearts" and "learn by the heart".

Hippocrates

Hippocrates looked upon the brain as the seat of the soul. He drew a connection between the brain and behaviors of the body saying "The brain exercises the greatest power in the man". Apart from moving the focus from the heart as the "seat of the soul" to the brain, Hippocrates did not go into much detail about its actual functioning. However, by switching the attention of the medical community to the brain, the doors were opened to a more scientific discovery of the organ responsible for our behaviors. For years to come, scientists were inspired to explore the functions of the body and to find concrete explanations for both normal and abnormal behaviors. Scientific discovery led them to believe that there were natural and organically occurring reasons to explain various functions of the body, and it could all be traced back to the brain. Over the years, science would continue to expand and the mysteries of the world would begin to make sense, or at least be looked at in a different way. Hippocrates introduced man to the concept of the mind – which was widely seen as a separate function apart from the actual brain organ.

René Descartes

Philosopher René Descartes expanded upon this idea and is most widely known by his work on the mind-body problem. Often, Descartes' ideas were looked upon as overly philosophical and lacking in sufficient scientific background. Descartes focused much of his anatomical experimentation on the brain, paying specific attention to the pineal gland – which he argued was the actual "seat of the soul". Still deeply rooted in a spiritual outlook towards the scientific world, the body was said to be mortal, and the soul immortal. The pineal gland was then thought to be the very place at which the mind would interact with the mortal and machine-like body. At the time, Descartes was convinced the mind had control over the behaviors of the body (controlling the man) – but also that the body could have influence over the mind, which is referred to as dualism. This idea that the mind essentially had control over the body, but man's body could resist or even influence other behaviors was a major turning point in the way many physiologists would look at the brain. The capabilities of the mind were observed to do much more than simply react, but also to be rational and function in organized, thoughtful ways – much more complex than he thought the animal world to be. These ideas, although disregarded by many and cast aside for years led the medical community to expand their own ideas of the brain and begin to understand in new ways just how intricate the workings of the brain really were, and the complete effects it had on daily life, as well, which treatments would be the most beneficial to helping those people living with a dysfunctional mind. The mind-body problem, spurred by René Descartes, continues to this day with many philosophical arguments both for and against his ideas. However controversial they were and remain today, the fresh and well-thought-out perspective Descartes presented has had long-lasting effects on the various disciplines of medicine, psychology and much more, especially in putting an emphasis on separating the mind from the body in order to explain observable behaviors.

Thomas Willis

It was in the mid-17th century that another major contributor to the field of neuropsychology emerged. Thomas Willis studied at Oxford University and took a physiological approach to the brain and behavior. It was Willis who coined the words 'hemisphere' and 'lobe' when referring to the brain. He was one of the earliest to use the words 'neurology' and 'psychology'. Rejecting the idea that humans were the only beings capable of rational thought, Willis looked at specialized structures of the brain. He theorized that higher structures accounted for complex functions, whereas lower structures were responsible for functions similar to those seen in other animals, consisting mostly of reactions and automatic responses. He was particularly interested in people who suffered from manic disorders and hysteria. His research constituted some of the first times that psychiatry and neurology came together to study individuals. Through his in-depth study of the brain and behavior, Willis concluded that automated responses such as breathing, heartbeats and other various motor activities were carried out within the lower region of the brain. Although much of his work has been made obsolete, his ideas presented the brain as more complex than previously imagined, and led the way for future pioneers to understand and build upon his theories, especially when it came to looking at disorders and dysfunctions in the brain.

Franz Joseph Gall

Neuroanatomist and physiologist Franz Joseph Gall made major progress in understanding the brain. He theorized that personality was directly related to features and structures within the brain. However, Gall's major contribution within the field of neuroscience is his invention of phrenology. This new discipline looked at the brain as an organ of the mind, where the shape of the skull could ultimately determine one's intelligence and personality. This theory was like many circulating at the time, as many scientists were taking into account physical features of the face and body, head size, anatomical structure, and levels of intelligence; only Gall looked primarily at the brain. There was much debate over the validity of Gall's claims however, because he was often found to be wrong in his predictions. He was once sent a cast of René Descartes' skull, and through his method of phrenology claimed the subject must have had a limited capacity for reasoning and higher cognition. As controversial and false as many of Gall's claims were, his contributions to understanding cortical regions of the brain and localized activity continued to advance understanding of the brain, personality, and behavior. His work is considered crucial to having laid a firm foundation in the field of neuropsychology, which would flourish over the next few decades.

Jean-Baptiste Bouillaud

Jean-Baptiste Bouillaud
 
Towards the late 19th century, the belief that the size of ones skull could determine their level of intelligence was discarded as science and medicine moved forward. A physician by the name of Jean-Baptiste Bouillaud expanded upon the ideas of Gall and took a closer look at the idea of distinct cortical regions of the brain each having their own independent function. Bouillaud was specifically interested in speech and wrote many publications on the anterior region of the brain being responsible for carrying out the act of ones speech, a discovery that had stemmed from the research of Gall. He was also one of the first to use larger samples for research although it took many years for that method to be accepted. By looking at over a hundred different case studies, Bouillaud came to discover that it was through different areas of the brain that speech is completed and understood. By observing people with brain damage, his theory was made more concrete. Bouillaud, along with many other pioneers of the time made great advances within the field of neurology, especially when it came to localization of function. There are many arguable debates as to who deserves the most credit for such discoveries, and often, people remain unmentioned, but Paul Broca is perhaps one of the most famous and well known contributors to neuropsychology – often referred to as "the father" of the discipline.

Paul Broca

Inspired by the advances being made in the area of localized function within the brain, Paul Broca committed much of his study to the phenomena of how speech is understood and produced. Through his study, it was discovered and expanded upon that we articulate via the left hemisphere. Broca's observations and methods are widely considered to be where neuropsychology really takes form as a recognizable and respected discipline. Armed with the understanding that specific, independent areas of the brain are responsible for articulation and understanding of speech, the brains abilities were finally being acknowledged as the complex and highly intricate organ that it is. Broca was essentially the first to fully break away from the ideas of phrenology and delve deeper into a more scientific and psychological view of the brain.

Karl Spencer Lashley

Lashley's works and theories that follow are summarized in his book Brain Mechanisms and Intelligence. Lashley's theory of the Engram was the driving force for much of his research. An engram was believed to be a part of the brain where a specific memory was stored. He continued to use the training/ablation method that Franz had taught him. He would train a rat to learn a maze and then use systematic lesions and removed sections of cortical tissue to see if the rat forgot what it had learned. 

Through his research with the rats, he learned that forgetting was dependent on the amount of tissue removed and not where it was removed from. He called this mass action and he believed that it was a general rule that governed how brain tissue would respond, independent of the type of learning. But we know now that mass action was a misinterpretation of his empirical results, because in order to run a maze the rats required multiple cortical areas, so cutting into small individual parts alone will not impair the rats' brains much, but taking large sections removes multiple cortical areas at one time, affecting various functions such as sight, motor coordination and memory, making the animal unable to run a maze properly. 

Lashley also proposed that a portion of a functional area could carry out the role of the entire area, even when the rest of the area has been removed. He called this phenomenon equipotentiality. We know now that he was seeing evidence of plasticity in the brain. The brain has the spectacular ability for certain areas to take over the functions of other areas if those areas should fail or be removed, although not to the extent initially argued by Lashley.

Approaches

Experimental neuropsychology is an approach that uses methods from experimental psychology to uncover the relationship between the nervous system and cognitive function. The majority of work involves studying healthy humans in a laboratory setting, although a minority of researchers may conduct animal experiments. Human work in this area often takes advantage of specific features of our nervous system (for example that visual information presented to a specific visual field is preferentially processed by the cortical hemisphere on the opposite side) to make links between neuroanatomy and psychological function.

Clinical neuropsychology is the application of neuropsychological knowledge to the assessment (see neuropsychological test and neuropsychological assessment), management, and rehabilitation of people who have suffered illness or injury (particularly to the brain) which has caused neurocognitive problems. In particular they bring a psychological viewpoint to treatment, to understand how such illness and injury may affect and be affected by psychological factors. They also can offer an opinion as to whether a person is demonstrating difficulties due to brain pathology or as a consequence of an emotional or another (potentially) reversible cause or both. For example, a test might show that both patients X and Y are unable to name items that they have been previously exposed to within the past 20 minutes (indicating possible dementia). If patient Y can name some of them with further prompting (e.g. given a categorical clue such as being told that the item they could not name is a fruit), this allows a more specific diagnosis than simply dementia (Y appears to have the vascular type which is due to brain pathology but is usually at least somewhat reversible). Clinical neuropsychologists often work in hospital settings in an interdisciplinary medical team; others work in private practice and may provide expert input into medico-legal proceedings.

Cognitive neuropsychology is a relatively new development and has emerged as a distillation of the complementary approaches of both experimental and clinical neuropsychology. It seeks to understand the mind and brain by studying people who have suffered brain injury or neurological illness. One model of neuropsychological functioning is known as functional localization. This is based on the principle that if a specific cognitive problem can be found after an injury to a specific area of the brain, it is possible that this part of the brain is in some way involved. However, there may be reason to believe that the link between mental functions and neural regions is not so simple. An alternative model of the link between mind and brain, such as parallel processing, may have more explanatory power for the workings and dysfunction of the human brain. Yet another approach investigates how the pattern of errors produced by brain-damaged individuals can constrain our understanding of mental representations and processes without reference to the underlying neural structure. A more recent but related approach is cognitive neuropsychiatry which seeks to understand the normal function of mind and brain by studying psychiatric or mental illness.

Connectionism is the use of artificial neural networks to model specific cognitive processes using what are considered to be simplified but plausible models of how neurons operate. Once trained to perform a specific cognitive task these networks are often damaged or 'lesioned' to simulate brain injury or impairment in an attempt to understand and compare the results to the effects of brain injury in humans.

Functional neuroimaging uses specific neuroimaging technologies to take readings from the brain, usually when a person is doing a particular task, in an attempt to understand how the activation of particular brain areas is related to the task. In particular, the growth of methodologies to employ cognitive testing within established functional magnetic resonance imaging (fMRI) techniques to study brain-behavior relations is having a notable influence on neuropsychological research.

In practice these approaches are not mutually exclusive and most neuropsychologists select the best approach or approaches for the task to be completed.

Methods and tools

Standardized neuropsychological tests 
These tasks have been designed so the performance on the task can be linked to specific neurocognitive processes. These tests are typically standardized, meaning that they have been administered to a specific group (or groups) of individuals before being used in individual clinical cases. The data resulting from standardization are known as normative data. After these data have been collected and analyzed, they are used as the comparative standard against which individual performances can be compared. Examples of neuropsychological tests include: the Wechsler Memory Scale (WMS), the Wechsler Adult Intelligence Scale (WAIS), Boston Naming Test, the Wisconsin Card Sorting Test, the Benton Visual Retention Test, and the Controlled Oral Word Association.
Brain scans 
The use of brain scans to investigate the structure or function of the brain is common, either as simply a way of better assessing brain injury with high resolution pictures, or by examining the relative activations of different brain areas. Such technologies may include fMRI (functional magnetic resonance imaging) and positron emission tomography (PET), which yields data related to functioning, as well as MRI (magnetic resonance imaging) and computed axial tomography (CAT or CT), which yields structural data.
Global Brain Project 
Brain models based on mouse and monkey have been developed based on theoretical neuroscience involving working memory and attention, while mapping brain activity based on time constants validated by measurements of neuronal activity in various layers of the brain. These methods also map to decision states of behavior in simple tasks that involve binary outcomes.
Electrophysiology 
The use of electrophysiological measures designed to measure the activation of the brain by measuring the electrical or magnetic field produced by the nervous system. This may include electroencephalography (EEG) or magneto-encephalography (MEG).
Experimental tasks 
The use of designed experimental tasks, often controlled by computer and typically measuring reaction time and accuracy on a particular tasks thought to be related to a specific neurocognitive process. An example of this is the Cambridge Neuropsychological Test Automated Battery (CANTAB) or CNS Vital Signs (CNSVS).
Software products 
Researchers have mapped to neural activity in the brain through brain scan or MRI. Applications based on Neuropsychology are being used to influence behavior design and habit formation. An example of such a product is fooya, which is a mobile App for children that has been shown in randomized and controlled studies to influence dietary preferences among children.

Neurophysics

From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Neurophysics ...