REACTION TIME

'Reaction time' (RT) is the elapsed time between the presentation of a sensory stimulus and the subsequent behavioral response. RT is often used in experimental psychology to measure the duration of mental operations, known as mental chronometry. The behavioral response is often a button press but can also be an eye movement, a vocal response, or some other observable behavior.

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Types of RT tasks

See also

External links

Types of RT tasks

★ Simple reaction time is usually defined as the time required for an observer to detect the presence of a stimulus. For example, an observer might be asked to press a button as soon as a light appears. Simple RT to detect the onset of a light flash is approximately 200 to 300 milliseconds[1].

★ Go/No-Go reaction time tasks require that the observer press a button when one stimulus type appears and withhold a response when other stimulus types appear. For example, the observer is to press the button when a red light appears and not respond when a green light appears.

★ Choice reaction time tasks require distinct responses for each possible class of stimulus. For example, the observer may be asked to press one button if a red light appears and a different button if a green light appears.
F.C. Donders was among the first to systematically analyze human RT to measure the duration of mental operations.

See also

Mental chronometry

External links

Simple Reaction Time:

★ Reaction Time Test (Flash) by HumanBenchmark

★ Reaction Time Test by Cognitive Labs
Complex Reaction Time:

★ Project Implicit by Harvard University