Author: James McKeen Cattell
Publisher:
ISBN:
Category : Reaction time
Languages : en
Pages : 4

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Author: Sven Froeberg
Publisher:
ISBN:
Category : Psychology
Languages : en
Pages : 52

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Author: Stephen W. Link
Publisher: Routledge
ISBN: 042962221X
Category : Psychology
Languages : en
Pages : 390

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Book Description
Two experimental procedures prompted the empirical development of psychophysical models: those that measure response frequency, often referred to as response probability; and those that measure response time, sometimes referred to as reaction time. The history of psychophysics is filled with theories that predict one or the other of these two responses. Yet the persistent reappearance of empirical relationships between these two measures of performance makes clear the need for a theory that both predicts and relates these two measures. Most likely, both response measures are the result of a single process that generates empirical laws relating response time and response probability. It is this process — its theory, description, and application — that is the topic of The Wave Theory of Difference and Similarity. Originally published in 1992, the author of this book has set out to provide a theoretical foundation for formulating new theories that systematize earlier results and to stimulate new concepts and introduce new tools for exploring mental phenomena and improving mental measurement.

Author: Scott Theodore Janssen
Publisher:
ISBN:
Category :
Languages : en
Pages : 92

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The central nervous system has the ability to generate very rapid 'temporally urgent' sensory motor reactions in response to stimuli under certain conditions. For example, temporally urgent reactions have been shown to occur during control of protective responses, such as regaining balance after a perturbation or reacting rapidly to a startling auditory stimulus. Two different mechanisms have been proposed to the observation of rapid reaction times; 1) different (shorter) pathway for those reactions with very rapid reactions and/or 2) increased synaptic excitability to reduce the time required at each site of synaptic convergence leading to a reduction in total reaction time. The overarching hypothesis of this work is that the occurrence of rapid reactions is mediated by the facilitation of pathways through stimulus driven and/or central facilitation leading to significant reduction in reaction time. The current work is delimited to a focus on the determinants of reaction time in response to auditory stimuli. Two studies were conducted to determine the relationship between stimulus intensity and behavioural and neurological responses. Study one focused on influence of stimulus intensity on simple and choice reaction time performance. Choice reaction time is distinguished by need for higher level cortical processing for decision making. Stimulus induced changes in choice reaction time would be most likely accounted for by pathway facilitation. Results from study one showed an overall decrease in choice reaction time to an increase in stimulus intensity with no difference in errors suggesting an increase in stimulus intensity results in increase synaptic facilitation. Study two focused on electrophysiological events associated with auditory stimuli. It was proposed that evidence of more rapid electrophysiological events and increased amplitude would support a model of synaptic facilitation with increases in auditory stimulus intensity. Results from study two showed decreased peak latencies with high stimulus amplitudes as well as increased cortical activity prior to motor responses further suggesting reductions in reaction time to increases in stimulus intensity are a result of increased synaptic facilitation. Overall this thesis is focussed on developing a further understanding of stimulus intensity as a determinant of reaction time so that in the future one may better understand the factors that contribute to slowing in older adults and those with neurological impairment.

Author: George Ross Wells
Publisher:
ISBN:
Category : Reaction time
Languages : en
Pages : 78

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Author: Donald William Brown
Publisher:
ISBN:
Category : Reaction time
Languages : en
Pages : 164

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Author: Albert Mathew Johanson
Publisher:
ISBN:
Category : Reaction time
Languages : en
Pages : 60

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Author: Robert T. Nullmeyer
Publisher:
ISBN:
Category : Reaction time
Languages : en
Pages : 240

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Author:
Publisher:
ISBN:
Category : Brain
Languages : en
Pages : 606

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Aimed at researchers and clinicians, this journal of neurology balances studies in neurological science with practical clinical articles.

Author: Harry George Murray
Publisher:
ISBN:
Category :
Languages : en
Pages : 130

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