Document Detail

The influence of time pressure and cue validity on response force in an S1-S2 paradigm.
MedLine Citation:
PMID:  11057005     Owner:  NLM     Status:  MEDLINE    
Hypotheses about variations of response force have emphasised the influences of arousal and of motor preparation. To study both types of influences in one experiment, the effects of time pressure and of validity of S1 were investigated in tasks wherein a first stimulus (S1) indicated the most probable response (80% valid) required after a second stimulus (S2). Under time pressure, responses were executed more forcefully while, as could be expected, response times were shorter and errors were more frequent. This pattern of results was not only obtained when time pressure was varied between blocks, but also when varied from trial to trial, by information given by S2. Also invalidly cued responses were executed more forcefully but, as could be expected, in contrast to time pressure, response times were longer and errors were more frequent. The results demonstrate that latency and force of responses may vary in different directions. Ways are outlined on how current hypotheses must be extended in order to account for these results.
P Jaśkowski; R H van der Lubbe; B Wauschkuhn; E Wascher; R Verleger
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta psychologica     Volume:  105     ISSN:  0001-6918     ISO Abbreviation:  Acta Psychol (Amst)     Publication Date:  2000 Sep 
Date Detail:
Created Date:  2000-11-03     Completed Date:  2000-11-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370366     Medline TA:  Acta Psychol (Amst)     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  89-105     Citation Subset:  IM    
Department of Neurology, Medical University of Lübeck, Germany.
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MeSH Terms
Analysis of Variance
Arousal* / physiology*
Conditioning (Psychology)*
Models, Psychological
Psychomotor Performance*
Reaction Time
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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