Citation

Jagacinski RJ, Johnson WW, Miller RA. J. Exp. Psychol. Hum. Percept. Perform. 1983; 9(1): 43-57.

Copyright

(Copyright © 1983, American Psychological Association)

DOI

unavailable

PMID

6220123

Abstract

Subjects' extrapolations of a piecewise constant-velocity trajectory and a constant-acceleration trajectory were mapped out over a sequence of trials that required only a button-press response. Without any performance feedback, subjects' extrapolations of both trajectories approximated an acceleration segment followed by a constant-velocity segment. With performance feedback, subjects' extrapolations of the constant-acceleration trajectory approached optimal performance. Subsequent withdrawal of the feedback shifted the entire extrapolated trajectory. These feedback-related changes in the extrapolated trajectory can be interpreted as changes in two parameters of a cognitive representation of the movement pattern.

Language: en