Results 211 to 220 of about 643,987 (256)

A Priori Probability Effects on Simple Reaction Time

Journal of Motor Behavior, 1975
Three factors - immediate foreperiod (1.0 and 4.0 sec), previous foreperiod (1.0 and 4.0 sec) and a priori probability (0.8 and 0.2) - were employed in a variable foreperiod simple RT design. The possibility was examined that a priori probability functioned independently of the previous foreperiod effect, an hypothesis advanced as an explanation for ...
E, Buckolz, R, Wilberg
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Uncertainty, Timekeeping, and Simple Reaction Time

Journal of Motor Behavior, 1970
Implications of the hypothesis that effects on simple RT of event and time uncertainty are due to S's unwillingness to prepare for an unlikely event were tested. In 2 experiments, RT was compared for the foreperiod method and the new transit-signal method. Alternative hypotheses based on faulty reinstatement of foreperiods were invalidated. The inverse
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Spectral loudness summation and simple reaction time

The Journal of the Acoustical Society of America, 2004
The present study evaluates the relation between loudness and simple reaction time (RT). Loudness matches between a narrowband noise (125 Hz wide) and a broadband noise (1500 Hz) were made at levels from near threshold to near 100 dB SPL. Over a similarly wide range of levels, RT to each of the noise bands was also measured.
Eva, Wagner, Mary, Florentine, Søren, Buus, Joseph, McCormack   +3 more
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Loudness and Simple Reaction Time′

British Journal of Audiology, 1972
This paper is an attempt to examine two major problem areas in accounting for the reason why people respond more rapidly to loud signals than to quiet ones. The first area is concerned with the experimentally variable magnitude of the effect, and three models are discussed.
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Shadowed and simple reaction times in stutterers and nonstutterers

The Journal of the Acoustical Society of America, 1989
Stutterers may experience difficulties in preparing and executing responses. This study investigated these possibilities as well as the possibility that stutterers may experience difficulty in the selection of responses. Two reaction-time tasks were investigated: a shadowing response in which speakers exactly repeated vowel sequences they heard, and a ...
D C, Harbison, R J, Porter, E A, Tobey
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The Stability of the Simple Reaction Time

2006
Some of the most widely used criterion variables in psychology are simple and choice reaction time. While stability of choice reaction time as a dependent variable seems to be investigated by researchers, no such data could be found for simple reaction time measurements.
Rebić, Veseljka, Ivanec, Dragutin, Kolesarić, Vladimir   +2 more
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Some Experiments on Simple and Choice Reaction Time.

Journal of Experimental Psychology, 1967
Abstract : The report concerns four problems on simple and choice reaction time (RT). First, in Experiments 1 and 2, the suthors examine the role of time estimation in the manipulation of responses in simple reaction time experiments by means of payoffs and information feedback.
J G, Snodgrass, R D, Luce, E, Galanter
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Simple apparatus for generating reaction time histograms

Physiology & Behavior, 1978
Abstract Human reaction times (RT) to sensory stimuli show variations that cannot be explained by peripheral or central neural processes. The statistical distribution of RT's for a given stimulus and differences in RT distributions for different stimuli seem to have received little attention. This report describes a simple apparatus for generating RT
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Representative Simple Reaction and Movement Time Scores

Research Quarterly. American Alliance for Health, Physical Education and Recreation, 1976
(1976). Representative Simple Reaction and Movement Time Scores. Research Quarterly. American Alliance for Health, Physical Education and Recreation: Vol. 47, No. 4, pp. 855-856.
K M, Haywood, J B, Teeple
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Effects of smoking on simple and choice reaction time

Psychopharmacology, 1994
Twenty-nine subjects performed a reaction time task with four levels of choice-task complexity under non-smoking, sham smoking, and low, medium and high nicotine cigarette conditions. Nicotine reduced decision time, while sham smoking increased decision time. This effect was independent of subjects' habitual levels of cigarette consumption.
T, Bates, O, Pellett, C, Stough, G, Mangan   +3 more
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