Results 291 to 300 of about 1,765,802 (336)
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Age, Cardiac Output and Choice Reaction Time
Nature, 1966IN an earlier communication to Nature1 it was argued that the attempt to resolve the discrepancy in data on choice reaction time in relation to age in terms of the effective duration of signals2 must be regarded as inadequate. The observations were based on a small sample (N = 48) of data from a psycho-physiological study of the possible effects of ...
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RELATIVE FREQUENCY EFFECT ON CHOICE REACTION TIME
Perceptual and Motor Skills, 1980Subjects gave either vocal (position-naming) or manual (button-press) responses to spatially arrayed lights in a four-alternative choice reaction task. Relative stimulus frequency, stimulus discriminability, and S-R compatibility were each shown to be significant determinants of RT.
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Square-Root Formula for Choice Reaction Time
Perceptual and Motor Skills, 1996The power law of choice reaction time, first proposed by Kvålseth (1980), is further discussed. It is shown that the so-called Hick-Hyman law is a special case of the power law. It is suggested that a particular square-root case provides a most concise and adequate formula lor predicting reaction time when the number of equiprobable stimulus-response ...
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Multiple Choice Reaction Time and Movement Time during Physical Exertion
Research Quarterly. American Association for Health, Physical Education and Recreation, 1971Abstract Subject performed a five-choice reaction time (RT) and movement time (MT) task while walking on a treadmill at heart rates (HR) of approximately 80 (standing still), 115, 145 and 175 beats per minute (bpm). Five-choice RT was optimal at a HR of 115 bpm and worst at 175 bpm, thereby supporting the hypothesis of an inverted U relationship ...
S, Levitt, B, Gutin
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Choice reaction times for temporal numerosity.
Journal of Experimental Psychology: Human Perception and Performance, 1979Subjects watched rapidly presented visual sequences of two events until they decided which event was the more frequent. Accuracy was reduced both by increased rates of presentation and by the addition of more inconclusive information to the initial portion of the sequence. Response latencies were longest when there was no objective numerosity inbalance,
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Subjective Expectancy and Choice Reaction Times
Quarterly Journal of Experimental Psychology, 1964Previous findings suggested that selective response times might be affected both by the inter-stimulus interval and by the probability of occurrence of the stimulus for reaction. These two factors have been tested independently and have been found to influence reaction times in a fashion that an expectancy hypothesis would predict.
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Some Experiments on Simple and Choice Reaction Time.
Journal of Experimental Psychology, 1967Abstract : 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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Choice Reaction Time Modifiability in Dementia and depression
International Journal of Neuroscience, 1985The effects of cognitive impairment resulting from either dementia of the Alzheimer type (DAT) or major depression (pseudodementia) on choice reaction time were examined in two conditions hypothesized to influence group performance selectively. Elderly controls had shorter reaction times than depressed patients who, in turn, were faster than dementia ...
F J, Pirozzolo +4 more
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Choice Reaction Times for Skilled Responses
Quarterly Journal of Experimental Psychology, 1960Two kinds of choice reaction time experiments are reported, both of which make use of a highly overlearned sensori-motor response. When a response is required for each stimulus presented, no increase in reaction time occurs as a function of the number of alternative stimuli available.
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Simple and choice reaction time in Parkinson's disease
Brain Research, 1999Reaction-times were evaluated in 6 parkinsonian patients and 6 normal control subjects using a simple reaction task and 3 choice reaction tasks of differing complexity. Reaction-times were measured as the time from stimulus onset to the onset of electromyographic activity in the responding muscle.
Y, Kutukcu +3 more
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