Document Detail

Sequence of preparatory set for response movement.
MedLine Citation:
PMID:  3399328     Owner:  NLM     Status:  MEDLINE    
Electromyographic reaction times (EMG-RTs) of the right biceps brachii muscle were examined for two movement patterns, elbow flexion and forearm supination, in 8 healthy male subjects under simple and complex RT conditions with varied preparatory intervals (PIs): 0, 200, 400, 600, and 800 msec. In the simple RT condition, the subject was informed of the movement patterns to be performed prior to beginning the trials. In the complex RT condition the subject had to choose one of the two movement patterns at the time of the presentation of a warning signal. The results indicated that: (1) compared with the simple RT condition a delay of about 100 msec. in over-all mean EMG-RT was observed at PI = 0 msec. in the complex RT condition; (2) the difference of over-all mean EMG-RT between the two RT conditions disappeared when PI = 400 msec.; and (3) the difference in EMG-RTs between flexion and supination in the complex RT condition became the same as that in the simple RT condition when PI = 700 msec. It is assumed that the preparatory set for response movements is organized in an order, resulting in the differentiation of RT.
T Kinugasa; K Fukuda; R Nakamura; T Hosokawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  66     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  1988 Apr 
Date Detail:
Created Date:  1988-09-02     Completed Date:  1988-09-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  515-20     Citation Subset:  IM    
College of Medical Technology and Nursing, University of Tsukuba, Ibaraki, Japan.
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MeSH Terms
Muscle Contraction*
Reaction Time*
Set (Psychology)

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