Time Course of Movement Planning: Selection of Handgrips for Object Manipulation

A goal of research on the cognitive control of movement is to determine how movements are chosen when many movements are possible. We addressed this issue by studying how subjects reached for a bar to be moved as quickly as possible from a home location to a target location. Ss generally grabbed the...

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Bibliographic Details
Published in:Journal of experimental psychology. Learning, memory, and cognition memory, and cognition, 1992-09, Vol.18 (5), p.1058-1073
Main Authors: Rosenbaum, David A, Vaughan, Jonathan, Barnes, Heather Jane, Jorgensen, Matthew J
Format: Article
Language:English
Subjects:
Acceleration
Activity levels. Psychomotricity
Adult
Attention
Behavior
Biological and medical sciences
Choice Behavior
Cognition & reasoning
Cognitive Processes
Functional Laterality
Fundamental and applied biological sciences. Psychology
Human
Humans
Memory
Motor Performance
Motor Skills
Orientation
Posture
Problem Solving
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychomotor activities
Psychomotor Performance
Reaction Time
Social research
Space life sciences
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Summary:A goal of research on the cognitive control of movement is to determine how movements are chosen when many movements are possible. We addressed this issue by studying how subjects reached for a bar to be moved as quickly as possible from a home location to a target location. Ss generally grabbed the bar in a way that afforded a comfortable posture at the target location (the end-state comfort effect) and with the thumb toward the end of the bar that would be aligned with the target (the thumb-toward bias ). The data suggested that subjects chose handgrips by retrieving instances of previous reaches, not by carrying out computations that treated candidate reaches as new behavioral events.
ISSN:0278-7393
1939-1285
DOI:10.1037/0278-7393.18.5.1058