What does reaction time mean?

Definitions for reaction time
re·ac·tion time

This dictionary definitions page includes all the possible meanings, example usage and translations of the word reaction time.

Princeton's WordNet

  1. reaction time, response time, latency, latent periodnoun

    the time that elapses between a stimulus and the response to it


  1. reaction timenoun

    The interval between the reception of a stimulus and the initiation of a response


  1. reaction time

    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; sometimes referred to as "response time") is measured by the elapsed time between stimulus onset and an individual's response on elementary cognitive tasks (ETCs), 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 the nervous system. Distributional characteristics of response times such as means and variance are considered useful indices of processing speed and efficiency, indicating how fast an individual can execute task-relevant mental operations. Behavioral responses are typically button presses, but eye movements, vocal responses, and other observable behaviors are often used. Reaction time is thought to be constrained by the speed of signal transmission in white matter as well as the processing efficiency of neocortical gray matter.The use of mental chronometry in psychological research is far ranging, encompassing nomothetic models of information processing in the human auditory and visual systems, as well as differential psychology topics such as the role of individual differences in RT in human cognitive ability, aging, and a variety of clinical and psychiatric outcomes. The experimental approach to mental chronometry includes topics such as the empirical study of vocal and manual latencies, visual and auditory attention, temporal judgment and integration, language and reading, movement time and motor response, perceptual and decision time, memory, and subjective time perception. Conclusions about information processing drawn from RT are often made with consideration of task experimental design, limitations in measurement technology, and mathematical modeling.


  1. reaction time

    Reaction time refers to the amount of time it takes for an individual to perceive a stimulus or event and then respond to it. This often involves cognitive processes such as attention, perception, decision-making, and motor responses. Reaction time can vary considerably, based on factors like age, physical fitness, fatigue, and distraction, and it is often measured in tasks that require quick and accurate responses.

U.S. National Library of Medicine

  1. Reaction Time

    The time from the onset of a stimulus until a response is observed.

Dictionary of Military and Associated Terms

  1. reaction time

    1. The elapsed time between the initiation of an action and the required response. 2. The time required between the receipt of an order directing an operation and the arrival of the initial element of the force concerned in the designated area.

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  1. Chaldean Numerology

    The numerical value of reaction time in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of reaction time in Pythagorean Numerology is: 6

Examples of reaction time in a Sentence

  1. Saija Karinkanta:

    If Elizabeth Joy want to improve Elizabeth Joy walking ability, most of the exercises need to be done while walking – standing on one foot, reaching, shifting weight from one foot to the other, squatting, tandem walking, stair walking, walking on different surfaces and stepping, in addition, if you want to improve your reaction time, the exercises need to challenge your reactions.

  2. Jens Flossdorf:

    Land defence and defence of our alliance has always been an important duty for the German military and over the last year this has only gained in importance, nATO has set new goals on flexibility and rapid reaction time. That is why we are examining what appropriate modernisations and revisions we can make to boost existing structures.

  3. Morgan Sword:

    It’s a direct response to the escalating strikeout rate, where you’re giving the hitter approximately one one-hundreth of a second of additional time to decide whether to swing at a pitch, which has the effect just in terms of reaction time of reducing the effective velocity of a pitch by roughly 1.5 mph, the purpose of the test and hope is giving hitters even that tiny additional piece of time will allow them to make more contact and reduce the strikeout rate.

  4. Angela Lee:

    How you perform is directly related to your training and your preparation, in the moment what makes all the difference is how quick your reaction time is. That's why I train so hard, so that it comes out extremely naturally during the fight.

Translations for reaction time

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"reaction time." Definitions.net. STANDS4 LLC, 2024. Web. 29 May 2024. <https://www.definitions.net/definition/reaction+time>.

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