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In 2001, psychologist Ian J. Deary published the first large-scale study of intelligence and reaction time in a representative population sample across a range of ages, finding a correlation between psychometric intelligence and simple reaction time of –0.31 and four-choice reaction time of –0.49.
Fixation (German: Fixierung) [1] is a concept (in human psychology) that was originated by Sigmund Freud (1905) to denote the persistence of anachronistic sexual traits. [ 2 ] [ 3 ] The term subsequently came to denote object relationships with attachments to people or things in general persisting from childhood into adult life.
The latency stage may begin around the age of 7 (the end of early childhood) and may continue until puberty, which happens around the age of 13.The age range is affected by childrearing practices; mothers in developed countries, during the time when Freud was forming his theories, were more likely to stay at home with young children, and adolescents began puberty on average later than ...
Anal retentiveness is a personality trait that is characterized by excessive concern with details. [1] The concept originated in Freudian psychoanalytic theory, where one aspect of the anal stage of psychosexual development is pleasure in the retention of feces.
Metacognitive therapy (MCT) is a psychotherapy focused on modifying metacognitive beliefs that perpetuate states of worry, rumination and attention fixation. [1] It was created by Adrian Wells [2] based on an information processing model by Wells and Gerald Matthews. [3] It is supported by scientific evidence from a large number of studies. [4] [5]
To measure reaction time (RT), a response mechanism is placed in front of the observer, usually a computer keyboard which is pressed upon detection of a target. Following a set inter-trial interval, usually between 2500 and 5000 ms, the entire paradigm is repeated for a set number of trials predetermined by the experimenter.
According to intellectual historian Jan E. Goldstein, the initial introduction of idée fixe as a medical term occurred around 1812 in connection with monomania. [1] The French psychiatrist Jean-Étienne Dominique Esquirol considered an idée fixe – in other words an unhealthy fixation on a single object – to be the principal symptom of monomania. [2]
These time intervals can be chosen randomly or systematically. If a researcher chooses to use systematic time sampling, the information obtained would only generalize to the one time period in which the observation took place. In contrast, the goal of random time sampling would be to be able to generalize across all times of observation.