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What's different in speed/accuracy trade-offs in young and elderly subjects

Published online by Cambridge University Press:  30 August 2019

George E. Stelmach  and
Jerry R. Thomas
George E. Stelmach
Affiliation:
Motor Control Laboratory, Exercise and Sport Research Institute, Arizona State University, Tempe, AZ 85287-0404 stelmach@asu.edujthomas@asu.edu
Jerry R. Thomas
Affiliation:
Motor Control Laboratory, Exercise and Sport Research Institute, Arizona State University, Tempe, AZ 85287-0404 stelmach@asu.edujthomas@asu.edu
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Abstract

We question whether Plamondon & Alimi's model is useful in accounting for the nonsymmetrical and multiple-peaked velocity profiles observed in young and elderly subjects for ballistic aiming tasks. For these subjects, both data and observation suggest that a central representation initiates the movement in an appropriate direction but that multiple adjustments are made, both early and late, to achieve spatial accuracy.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 20 , Issue 2 , June 1997 , pp. 321
Copyright
1997 Cambridge University Press

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