Progression-Regression Effects in Tracking Repeated Patterns

Subjects used a position control system to perform compensatory tracking of a repeated input pattern. Tracking error was roughly proportional to the velocity of the input signal. Error magnitude decreased with practice and increased with the addition of a concurrent memory task. These effects can be...

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Bibliographic Details
Published in:Journal of experimental psychology. Human perception and performance 1988-02, Vol.14 (1), p.77-88
Main Authors: Jagacinski, Richard J, Hah, Sehchang
Format: Article
Language:English
Subjects:
Adult
Attention
Biological and medical sciences
Conditioning
Female
Form Perception
Fundamental and applied biological sciences. Psychology
Human
Humans
Learning. Memory
Male
Memory
Mental Recall
Motor Performance
Pattern Recognition, Visual
Practice
Proprioception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychomotor Performance
Tracking
Velocity
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Summary:Subjects used a position control system to perform compensatory tracking of a repeated input pattern. Tracking error was roughly proportional to the velocity of the input signal. Error magnitude decreased with practice and increased with the addition of a concurrent memory task. These effects can be modeled as progressive and regressive changes in how well subjects used control movement velocity and displayed error velocity to anticipate the input pattern and thereby reduce their effective time delay. The weighting of velocity cues in this model progressed with practice and regressed with the secondary task, even though the secondary task required no concurrent visual scanning or simultaneous motor response. This regression effect appears to indicate cognitive interference with the anticipation process. Stationary linear models provide a good approximation to the movement patterns; however, these models do not account for episodes of rapid pulse-like movements that were revealed in the ensemble-averaged trajectories.
ISSN:0096-1523
1939-1277
DOI:10.1037/0096-1523.14.1.77