Psychology is the scientific study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both conscious and unconscious phenomena, and mental processes such as thoughts, feelings, and motives. Psychology is an academic discipline of immense scope, crossing the boundaries between the natural and social sciences. Biological psychologists seek an understanding of the emergent properties of brains, linking the discipline to neuroscience. As social scientists, psychologists aim to understand the behavior of individuals and groups.
Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is inaccurate, closed-minded, prejudicial, or unfair. Biases can be innate or learned. People may develop biases for or against an individual, a group, or a belief. In science and engineering, a bias is a systematic error. Statistical bias results from an unfair sampling of a population, or from an estimation process that does not give accurate results on average.
A cognitive bias is a systematic pattern of deviation from norm or rationality in judgment. Individuals create their own "subjective reality" from their perception of the input. An individual's construction of reality, not the objective input, may dictate their behavior in the world. Thus, cognitive biases may sometimes lead to perceptual distortion, inaccurate judgment, illogical interpretation, and irrationality.
Informed consent is a principle in medical ethics, medical law, media studies, and other fields, that a person must have sufficient information and understanding before making decisions about accepting risk, such as their medical care. Pertinent information may include risks and benefits of treatments, alternative treatments, the patient's role in treatment, and their right to refuse treatment. In most systems, healthcare providers have a legal and ethical responsibility to ensure that a patient's consent is informed. This principle applies more broadly than healthcare intervention, for example to conduct research, to disclose a person's medical information, or to participate in high risk sporting and recreational activities.
Jean William Fritz Piaget was a Swiss psychologist known for his work on child development. Piaget's theory of cognitive development and epistemological view are together called genetic epistemology.
Forensic psychology is the application of scientific knowledge and methods to help answer legal questions arising in criminal, civil, contractual, or other judicial proceedings. Forensic psychology includes research on various psychology-law topics, such as jury selection, reducing systemic racism in criminal law; eyewitness testimony, evaluating competency to stand trial; or assessing military veterans for service-connected disability compensation. The American Psychological Association's Specialty Guidelines for Forensic Psychologists reference several psychology subdisciplines, such as social, clinical, experimental, counseling, and neuropsychology.
The simulation heuristic is a psychological heuristic, or simplified mental strategy, according to which people determine the likelihood of an event based on how easy it is to picture the event mentally. Partially as a result, people experience more regret over outcomes that are easier to imagine, such as "near misses". The simulation heuristic was first theorized by psychologists Daniel Kahneman and Amos Tversky as a specialized adaptation of the availability heuristic to explain counterfactual thinking and regret. However, it is not the same as the availability heuristic. Specifically the simulation heuristic is defined as "how perceivers tend to substitute normal antecedent events for exceptional ones in psychologically 'undoing' this specific outcome."
The expression immaculate perception, used by the German philosopher Friedrich Nietzsche in his text Thus Spoke Zarathustra; the term pertains to the idea of "pure knowledge." Nietzsche argues that "immaculate perception" is fictional because it ignores the intimate connection between the perceiver and the external world. He argues that humans are fallible and are capable of using data to ratify or refute perceptions. He also clarifies that perception is value-laden and can be ruled by our interests.
Decision analysis (DA) is the discipline comprising the philosophy, methodology, and professional practice necessary to address important decisions in a formal manner. Decision analysis includes many procedures, methods, and tools for identifying, clearly representing, and formally assessing important aspects of a decision; for prescribing a recommended course of action by applying the maximum expected-utility axiom to a well-formed representation of the decision; and for translating the formal representation of a decision and its corresponding recommendation into insight for the decision maker, and other corporate and non-corporate stakeholders.
A doomsday cult is a cult that believes in apocalypticism and millenarianism, including both those that predict disaster and those that attempt to destroy the entire universe. Sociologist John Lofland coined the term doomsday cult in his 1966 study of a group of members belonging to the Unification Church of the United States: Doomsday Cult: A Study of Conversion, Proselytization, and Maintenance of Faith. In 1958, Leon Festinger published a study of a group with cataclysmic predictions: When Prophecy Fails: A Social and Psychological Study of a Modern Group that Predicted the Destruction of the World.
Paul Everett Meehl was an American clinical psychologist. He was the Hathaway and Regents' Professor of Psychology at the University of Minnesota, and past president of the American Psychological Association. A Review of General Psychology survey, published in 2002, ranked Meehl as the 74th most cited psychologist of the 20th century, in a tie with Eleanor J. Gibson. Throughout his nearly 60-year career, Meehl made seminal contributions to psychology, including empirical studies and theoretical accounts of construct validity, schizophrenia etiology, psychological assessment, behavioral prediction, metascience, and philosophy of science.
James Grier Miller was an American biologist, a pioneer of systems science and academic administrator, who originated the modern use of the term "behavioral science", founded and directed the multi-disciplinary Mental Health Research Institute at the University of Michigan, and originated the living systems theory.
In psychology, personality type refers to the psychological classification of individuals. In contrast to personality traits, the existence of personality types remains extremely controversial. Types are sometimes said to involve qualitative differences between people, whereas traits might be construed as quantitative differences. According to type theories, for example, introverts and extraverts are two fundamentally different categories of people. According to trait theories, introversion and extraversion are part of a continuous dimension, with many people in the middle.
Lyn Yvonne Abramson is a professor of psychology at the University of Wisconsin–Madison. She was born in Benson, Minnesota. She took her undergraduate degree at the University of Wisconsin–Madison in 1972 before attaining her Ph.D. in clinical psychology at University of Pennsylvania in 1978.
Tan Sri Ong Hock Thye (1908–1977), PMN, PSM, DPMS, also known as H. T. Ong, was Chief Judge of Malaya and a Barrister-at-Law of Middle Temple. He was the son of Mr. Ong Teng Up and was born in Penang in 1908. In 1935, he married Chong Khew Yin (1915–1942). In 1943, he married Mary Chung Yuet See (1924–1995), the eldest daughter of Kapitan China Chung Thye Phin.
The negativity bias, also known as the negativity effect, is a cognitive bias that, even when positive or neutral things of equal intensity occur, things of a more negative nature have a greater effect on one's psychological state and processes than neutral or positive things. In other words, something very positive will generally have less of an impact on a person's behavior and cognition than something equally emotional but negative. The negativity bias has been investigated within many different domains, including the formation of impressions and general evaluations; attention, learning, and memory; and decision-making and risk considerations.
Robyn Mason Dawes was an American psychologist who specialized in the field of human judgment. His research interests included human irrationality, human cooperation, intuitive expertise, and the United States AIDS policy. He applied linear models to human decision making, including models with equal weights, a method known as unit-weighted regression. He co-wrote an early textbook on mathematical psychology.
Percy Bysshe Shelley was an English writer who is considered as one of the major English Romantic poets. A radical in his poetry as well as in his political and social views, Shelley did not achieve fame during his lifetime, but recognition of his achievements in poetry grew steadily following his death, and he became an important influence on subsequent generations of poets, including Robert Browning, Algernon Charles Swinburne, Thomas Hardy, and W. B. Yeats. American literary critic Harold Bloom describes him as "a superb craftsman, a lyric poet without rival, and surely one of the most advanced sceptical intellects ever to write a poem."
Richard L. Peterson is an American behavioral economist and psychiatrist. He has developed behavioral finance-based quantitative models, imaged the brains of subjects play-trading, and is a frequent writer about social media sentiment. Peterson developed text mining software to identify and quantify economically predictive sentiments, and speaks widely in the areas of behavioral finance and social media analytics.
Edward Otto Laumann is an American sociologist. He is Professor Emeritus in the Department of Sociology at the University of Chicago. Laumann earned his Ph.D. in the Harvard Department of Social Relations in 1964, where he worked with George Homans, Talcott Parsons, and Harrison White. He served as Dean of the social sciences and Provost at Chicago. He is best known for his work on social stratification, urban sociology, organizational sociology, health and aging, and is widely recognized as a pioneer in the areas of social network analysis and the sociology of sexuality. In 2013, he was elected to the American Academy of Arts and Sciences.
