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Mental Chronometry
Mental chronometry is the scientific study of processing speed or reaction time on cognitive tasks to infer the content, duration, and temporal sequencing of mental operations. Reaction time (RT; also referred to as "response time") is measured by the elapsed time between stimulus onset and an individual's response on elementary cognitive tasks (ECTs), which are relatively simple perceptual-motor tasks typically administered in a laboratory setting. Mental chronometry is one of the core methodological paradigms of human experimental, cognitive, and differential psychology, but is also commonly analyzed in psychophysiology, cognitive neuroscience, and behavioral neuroscience to help elucidate the biological mechanisms underlying perception, attention, and decision-making in humans and other species. Mental chronometry uses measurements of elapsed time between sensory stimulus onsets and subsequent behavioral responses to study the time course of information processing in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reaction Time Stages
Reaction may refer to a process or to a response (other), response to an action, event, or exposure. Physics and chemistry *Chemical reaction *Nuclear reaction *Reaction (physics), as defined by Newton's third law *Chain reaction (other) Biology and medicine *Adverse drug reaction *Allergy, Allergic reaction *Reflex, neural reaction *Hypersensitivity, immune reaction *Intolerance (other) *Light reaction (other) Psychology *Emotional, reaction *Reactivity (psychology), Reactivity *Proactivity, opposite of reactive behaviour *Reactive attachment disorder Politics and culture *Reactionary, a political tendency *Reaction video *Commentary (other) Proper names and titles *Reaction (album), ''Reaction'' (album), a 1986 album by American R&B singer Rebbie Jackson **Reaction (song), "Reaction" (song), the title song from the Rebbie Jackson album *"Reaction", a single by Dead Letter Circus *''Reactions'', a 2018 album by The Mods (band), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Pearson
Karl Pearson (; born Carl Pearson; 27 March 1857 – 27 April 1936) was an English biostatistician and mathematician. He has been credited with establishing the discipline of mathematical statistics. He founded the world's first university statistics department at University College London in 1911, and contributed significantly to the field of biometrics and meteorology. Pearson was also a proponent of Social Darwinism and eugenics, and his thought is an example of what is today described as scientific racism. Pearson was a protégé and biographer of Sir Francis Galton. He edited and completed both William Kingdon Clifford's ''Common Sense of the Exact Sciences'' (1885) and Isaac Todhunter's ''History of the Theory of Elasticity'', Vol. 1 (1886–1893) and Vol. 2 (1893), following their deaths. Early life and education Pearson was born in Islington, London, into a Quaker family. His father was William Pearson QC of the Inner Temple, and his mother Fanny (née Smit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millisecond
A millisecond (from '' milli-'' and second; symbol: ms) is a unit of time in the International System of Units equal to one thousandth (0.001 or 10−3 or 1/1000) of a second or 1000 microseconds. A millisecond is to one second, as one second is to approximately 16.67 minutes. A unit of 10 milliseconds may be called a centisecond, and one of 100 milliseconds a decisecond, but these names are rarely used. To help compare orders of magnitude of different times, this page lists times between 10−3 seconds and 100 seconds (1 millisecond and one second). ''See also'' times of other orders of magnitude. Examples The Apollo Guidance Computer used metric units internally, with centiseconds used for time calculation and measurement. *1 millisecond (1 ms) – cycle time for frequency 1 kHz; duration of light for typical photo flash strobe; time taken for sound wave to travel about 34 cm; repetition interval of GPS C/A PN code *1 millisecond – time taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oswald Külpe
Theodor Oswald Rudolph Külpe (; 3 August 1862 – 30 December 1915) was a German structural psychologist of the late 19th and early 20th century. Külpe, who is less well-known than his German mentor, Wilhelm Wundt, revolutionized experimental psychology at his time. In his obituary, Aloys Fischer wrote that, “undoubtedly Külpe was the second founder of experimental psychology on German soil; for with every change of base he made it a requirement that an experimental laboratory should be provided.” Külpe studied as a doctoral student and assistant to Wundt at the University of Leipzig, though his ideas differed from Wundt's as he developed his own research (Boring, 1961). Külpe made significant contributions to the field of psychology, some of which are still relevant, including the systematic experimental introspection, imageless thoughts, mental sets, and abstraction. Biography In August 1862, Oswald Külpe was born in Kandau, Courland, one of the Baltic provinces of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structuralism (psychology)
Structuralism in psychology (also structural psychology) is a theory of consciousness developed by Edward Bradford Titchener. This theory was challenged in the 20th century. Structuralists seek to analyze the adult mind (the total sum of experience from birth to the present) in terms of the simplest definable components of experience and then to find how these components fit together to form more complex experiences as well as how they correlate to physical events. To do this, structuralists employ introspection: self-reports of sensations, views, feelings, and emotions. Titchener Edward B. Titchener is credited for the theory of structuralism. It is considered to be the first "school" of psychology. Because he was a student of Wilhelm Wundt at the University of Leipzig, Titchener's ideas on how the mind worked were heavily influenced by Wundt's theory of voluntarism and his ideas of association and apperception (the passive and active combinations of elements of consciou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franciscus Donders
Franciscus (Franz) Cornelius Donders FRS FRSE (27 May 1818 – 24 March 1889) was a Dutch ophthalmologist. During his career, he was a professor of physiology in Utrecht, and was internationally regarded as an authority on eye diseases, directing the Netherlands Hospital for Eye Patients. Along with Graefe and Helmholtz, he was one of the primary founders of scientific ophthalmology. Life He was born in Tilburg, the son of Jan Franz Donders and Agnes Elizabeth Hegh. Education Franciscus Donders was first educated at Duizel School and seminaries in both Tilburg and Boxmeer. By the age of seventeen, he had started studying medicine in the School of Military in Utrecht. It was here that he discovered his passion for experimental study, specifically in the field of chemistry. By the age of twenty-two he entered the junior military in order to become a surgeon For several years, the young Donders studied at the Royal Dutch Hospital for Military Medicine in Utrecht, then earning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adaptation (eye)
In visual physiology, adaptation is the ability of the retina of the eye to adjust to various levels of light. Natural night vision, or scotopic vision, is the ability to see under low-light conditions. In humans, rod cells are exclusively responsible for night vision, as cone cells are only able to function at higher illumination levels. Night vision is of lower quality than day vision because it is limited in resolution and colors cannot be discerned; only shades of gray are seen. In order for humans to transition from day to night vision they must undergo a dark adaptation period of up to two hours in which each eye adjusts from a high to a low luminescence "setting", increasing sensitivity hugely, by many orders of magnitude. This adaptation period is different between rod and cone cells and results from the regeneration of photopigments to increase retinal sensitivity. Light adaptation, in contrast, works very quickly, within seconds. Efficiency The human eye can fun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Hovland
Carl Iver Hovland (June 12, 1912 – April 16, 1961) was a psychologist working primarily at Yale University and for the United States Army, US Army during World War II who studied attitude (psychology), attitude change and persuasion. He first reported the sleeper effect after studying the effects of the Frank Capra propaganda film ''Why We Fight'' on soldiers in the Army. In later studies on this subject, Hovland collaborated with Irving Janis who would later become famous for his theory of groupthink. Hovland also developed social judgment theory of Attitude (psychology), attitude change. Carl Hovland thought that the ability of someone to resist persuasion by a certain group depended on your degree of belonging to the group. Biography Hovland was born in Chicago on June 12, 1912. He originally intended to pursue a career in music until college, when he discovered psychology. Before this discovery, during his high school years at Luther Institute in Chicago, he would meet a fel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Piéron
Louis Charles Henri Piéron (; 18 July 1881 – 6 November 1964) was a French psychologist A psychologist is a professional who practices psychology and studies mental states, perceptual, cognitive, emotional, and social processes and behavior. Their work often involves the experimentation, observation, and explanation, interpretatio .... He was one of the founders of scientific psychology in France. He developed the Toulouse-Piéron Cancellation Test (TP) with Édouard Toulouse. Biography Henri Piéron was Professor of Physiology of Sensation at the Collège de France from 1923 to 1951. He took part in the first Davos University Course (a project to start an international university based in Davos) in 1928, along with many other prominent academics such as Albert Einstein and Hans Driesch. The same year, he created the ''Institut national d'orientation professionnelle'' (INOP), which became the ''Institut national d'étude du travail et d'orientation professionnelle' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelligence
Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as the ability to perceive or infer information and to retain it as knowledge to be applied to adaptive behaviors within an environment or context. The term rose to prominence during the early 1900s. Most psychologists believe that intelligence can be divided into various domains or competencies. Intelligence has been long-studied in humans, and across numerous disciplines. It has also been observed in the cognition of non-human animals. Some researchers have suggested that plants exhibit forms of intelligence, though this remains controversial. Etymology The word '' intelligence'' derives from the Latin nouns '' intelligentia'' or '' intellēctus'', which in turn stem from the verb '' intelligere'', to comprehend or perceive. In the M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Galton
Sir Francis Galton (; 16 February 1822 – 17 January 1911) was an English polymath and the originator of eugenics during the Victorian era; his ideas later became the basis of behavioural genetics. Galton produced over 340 papers and books. He also developed the statistical concept of correlation and widely promoted regression toward the mean. He was the first to apply statistical methods to the study of human differences and inheritance of intelligence, and introduced the use of questionnaires and Statistical survey, surveys for collecting data on human communities, which he needed for genealogical and biographical works and for his anthropometrics, anthropometric studies. He popularised the phrase "nature versus nurture". His book ''Hereditary Genius'' (1869) was the first social scientific attempt to study genius and greatness. As an investigator of the human mind, he founded psychometrics and differential psychology, as well as the lexical hypothesis of personality. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kymograph
A kymograph (from Greek κῦμα, swell or wave + γραφή, writing; also called a kymographion) is a type of two-dimensional plot that represents spatial position or signal intensity over time. In its modern usage, a kymograph is typically a space–time plot used in fields such as microscopy, cell biology, and speech science to track dynamic processes. These plots are generated by extracting intensity values along a predefined path across sequential image frames. The resulting image reduces the dimension to show time on one axis and sequential spatial information on the other. Using this technique allows for the visualization of dynamics within the image sequence, often by measuring the resulting slope of lines or streaks. This allows researchers to quantify velocity and directionality of movement, especially in applications like mitochondrial transport, vesicle trafficking, or vocal fold vibration. Although they reduce spatial information to a one-dimensional line, kymographs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
