Biological Basis Of Personality
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Biological Basis Of Personality
The biological basis of personality is the collection of brain systems and mechanisms that underlie Personality, human personality. Neuroscience, Human neurobiology, especially as it relates to complex traits and behaviors, is not well understood, but research into the Neuroanatomy, neuroanatomical and functional underpinnings of personality are an active field of research. Model organism, Animal models of behavior, molecular biology, and Neuroimaging, brain imaging techniques have provided some insight into human personality, especially Trait theory, trait theories. Much of the current understanding of personality from a neurobiological perspective places an emphasis on the biochemistry of the behavioral systems of reward, motivation, and punishment. This has led to a few biologically based personality theories such as Hans Eysenck#Model of personality, Eysenck's three factor model of personality, Grey's reinforcement sensitivity theory (RST), and Temperament and Character Invento ...
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Inside My Head Cropped
Inside may refer to: * Insider, a member of any group of people of limited number and generally restricted access Film * Inside (1996 film), ''Inside'' (1996 film), an American television film directed by Arthur Penn and starring Eric Stoltz * Inside (2002 film), ''Inside'' (2002 film), a Canadian prison drama film * Inside (2006 film), ''Inside'' (2006 film), an American thriller film starring Nicholas D'Agosto and Leighton Meester * Inside (2007 film), ''Inside'' (2007 film), originally ''À l'intérieur'', a French horror film directed by Alexandre Bustillo and Julien Maury ** Inside (2016 film), ''Inside'' (2016 film), a 2016 Spanish-American film remake of the 2007 film * Inside (2011 film), ''Inside'' (2011 film), an American social film * Inside (2012 film), ''Inside'' (2012 film), an American horror film * Inside (2013 film), ''Inside'' (2013 film), a Turkish drama film * ''Bo Burnham: Inside'', a 2021 American comedy special * Inside (2023 film), ''Inside'' (2023 film), ...
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Jeffrey Alan Gray
Jeffrey Alan Gray (26 May 1934 – 30 April 2004) was a British psychologist who is notable for his contributions to the theory of consciousness. Life and work He was born in the East End of London. His father was a tailor, but died when Jeffrey was only seven. His mother, who ran a haberdashery, brought him up alone. Following military service (1952–54), he took up a MacKinnon scholarship at Magdalen College, Oxford, with a place to study Law. In the event he negotiated a switch to Modern Languages, obtaining a first in French and Spanish. He stayed on to take a second BA, this time in Psychology and Philosophy, which he completed in 1959. In 1959–60 he trained as a clinical psychologist at the Institute of Psychiatry in London (now part of King's College London), after which he stayed on to study for a PhD in the department of psychology, headed by Hans Eysenck. His PhD was awarded in 1964 for a study of environmental, genetic and hormonal influences on emotional behavio ...
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Behavioral Inhibition System
The biopsychological theory of personality is a model of the general biological processes relevant for human psychology, behavior, and personality. The model, proposed by research psychologist Jeffrey Alan Gray in 1970, is well-supported by subsequent research and has general acceptance among professionals. Gray hypothesized the existence of two brain-based systems for controlling a person's interactions with their environment: the behavioural inhibition system (BIS) and the behavioural activation system (BAS). BIS is related to sensitivity to punishment and avoidance motivation. BAS is associated with sensitivity to reward and approach motivation. There is evidence that the Behavioral Inhibition and Behavioral Activations system are connected to mood control, with positive or negative emotions occurring when rewarded or punished. Those with a relatively high BAS are said to be extraverted and outgoing while those with a high BIS tend to be more reserved and introverted. Psychologic ...
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Fight-or-flight Response
The fight-or-flight or the fight-flight-or-freeze response (also called hyperarousal or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. It was first described by Walter Bradford Cannon. His theory states that animals react to threats with a general discharge of the sympathetic nervous system, preparing the animal for fighting or fleeing. More specifically, the adrenal medulla produces a hormonal cascade that results in the secretion of catecholamines, especially norepinephrine and epinephrine. The hormones estrogen, testosterone, and cortisol, as well as the neurotransmitters dopamine and serotonin, also affect how organisms react to stress. The hormone osteocalcin might also play a part. This response is recognised as the first stage of the general adaptation syndrome that regulates stress responses among vertebrates and other organisms. Name Originally understood as the fight-o ...
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Psychoticism
Psychoticism is one of the three traits used by the psychologist Hans Eysenck in his P–E–N model (psychoticism, extraversion and neuroticism) model of personality. Nature Psychoticism is conceptually similar to the ''constraint'' factor in Tellegen's three-factor model of personality. Psychoticism may be divided into narrower traits such as impulsivity and sensation-seeking. These may in turn be further subdivided into even more specific traits. For example, impulsivity may be divided into narrow impulsivity (unthinking responsivity), risk taking, non-planning, and liveliness. Sensation seeking has also been analysed into a number of separate facets. Eysenck argued that there might be a correlation between psychoticism and creativity.Eysenck, Hans J. (1993). Creativity and Personality: Suggestions for a Theory. ''Psychological Inquiry''. 4(3), 147–178. Critics Critics of the trait have suggested that the trait is too heterogeneous to be taken as a single trait. Costa ...
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Neuroticism
In the study of psychology, neuroticism has been considered a fundamental personality trait. For example, in the Big Five approach to personality trait theory, individuals with high scores for neuroticism are more likely than average to be moody and to experience such feelings as anxiety, worry, fear, anger, frustration, envy, jealousy, guilt, depressed mood, and loneliness. Such people are thought to respond worse to stressors and are more likely to interpret ordinary situations, such as minor frustrations, as appearing hopelessly difficult. People with high scores on the neuroticism index are thought to be at risk of developing common mental disorders (mood disorders, anxiety disorders, and substance use disorders have been studied), and the sorts of symptoms traditionally referred to as "neuroses". Definition Neuroticism is a trait in many models within personality theory, but there is significant disagreement on its definition. It is sometimes defined as a tendency for quick ...
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Extraversion
The traits of extraversion (also spelled extroversion Retrieved 2018-02-21.) and introversion are a central dimension in some human personality theories. The terms ''introversion'' and ''extraversion'' were introduced into psychology by Carl Jung,Jung, C. G. (1921) ''Psychologische Typen'', Rascher Verlag, Zurich – translation H.G. Baynes, 1923. although both the popular understanding and current psychological usage vary. Extraversion tends to be manifested in outgoing, talkative, energetic behavior, whereas introversion is manifested in more reflective and reserved behavior. Jung defined introversion as an "attitude-type characterised by orientation in life through subjective psychic contents", and extraversion as "an attitude-type characterised by concentration of interest on the external object". Extraversion and introversion are typically viewed as a single continuum, so to be higher in one necessitates being lower in the other. Jung provides a different perspective ...
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Brainstem
The brainstem (or brain stem) is the posterior stalk-like part of the brain that connects the cerebrum with the spinal cord. In the human brain the brainstem is composed of the midbrain, the pons, and the medulla oblongata. The midbrain is continuous with the thalamus of the diencephalon through the tentorial notch, and sometimes the diencephalon is included in the brainstem. The brainstem is very small, making up around only 2.6 percent of the brain's total weight. It has the critical roles of regulating cardiac, and respiratory function, helping to control heart rate and breathing rate. It also provides the main motor and sensory nerve supply to the face and neck via the cranial nerves. Ten pairs of cranial nerves come from the brainstem. Other roles include the regulation of the central nervous system and the body's sleep cycle. It is also of prime importance in the conveyance of motor and sensory pathways from the rest of the brain to the body, and from the body back to t ...
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Limbic System
The limbic system, also known as the paleomammalian cortex, is a set of brain structures located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain.Schacter, Daniel L. 2012. ''Psychology''.sec. 3.20 It supports a variety of functions including emotion, behavior, long-term memory, and olfaction. Emotional life is largely housed in the limbic system, and it critically aids the formation of memories. With a primordial structure, the limbic system is involved in lower order emotional processing of input from sensory systems and consists of the amygdaloid nuclear complex (amygdala), mammillary bodies, stria medullaris, central gray and dorsal and ventral nuclei of Gudden. This processed information is often relayed to a collection of structures from the telencephalon, diencephalon, and mesencephalon, including the prefrontal cortex, cingulate gyrus, limbic thalamus, hippocampus including the parahippocampal gyrus an ...
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Reticular Formation
The reticular formation is a set of interconnected nuclei that are located throughout the brainstem. It is not anatomically well defined, because it includes neurons located in different parts of the brain. The neurons of the reticular formation make up a complex set of networks in the core of the brainstem that extend from the upper part of the midbrain to the lower part of the medulla oblongata. The reticular formation includes ascending pathways to the cerebral cortex, cortex in the ascending reticular activating system (ARAS) and descending pathways to the spinal cord via the reticulospinal tracts. Neurons of the reticular formation, particularly those of the ascending reticular activating system, play a crucial role in maintaining behavioral arousal and consciousness. The overall functions of the reticular formation are modulatory and premotor, involving somatic motor control, cardiovascular control, pain modulation, sleep and consciousness, and habituation. The modulatory ...
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Genetic Predisposition
A genetic predisposition is a genetic characteristic which influences the possible phenotypic development of an individual organism within a species or population under the influence of environmental conditions. In medicine, genetic susceptibility to a disease refers to a genetic predisposition to a health problem, which may eventually be triggered by particular environmental or lifestyle factors, such as tobacco smoking or diet. Genetic testing is able to identify individuals who are genetically predisposed to certain diseases. Behavior Predisposition is the capacity humans are born with to learn things such as language and concept of self. Negative environmental influences may block the predisposition (ability) one has to do some things. Behaviors displayed by animals can be influenced by genetic predispositions. Genetic predisposition towards certain human behaviors is scientifically investigated by attempts to identify patterns of human behavior that seem to be invariant ...
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Journal Of Mental Science
A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of what happened over the course of a day or other period *Daybook, also known as a general journal, a daily record of financial transactions * Logbook, a record of events important to the operation of a vehicle, facility, or otherwise *Record (other) *Transaction log, a chronological record of data processing *Travel journal In publishing, ''journal'' can refer to various periodicals or serials: *Academic journal, an academic or scholarly periodical ** Scientific journal, an academic journal focusing on science ** Medical journal, an academic journal focusing on medicine **Law review, a professional journal focusing on legal interpretation * Magazine, non-academic or scholarly periodicals in general **Trade magazine, a magazine of interest to those of a particular profession or trade ** Literary magazine, a magazine devoted to li ...
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