Manual coordination with intermittent targets

Velocity information for prospective control

Justin Fine, Kimberly L. Ward, Eric Amazeen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Tracking a moving target requires that information concerning the current and future state of a target is available, allowing prospective control of the tracking effector. Eye movement research has shown that prospective visual tracking is achievable during conditions of both visible and occluded targets. The ability to track visually occluded targets has been interpreted as individuals integrating target velocity into eye movement motor plans. It has not been fully established that velocity plays a similar role in other types of tracking behavior. To examine whether target velocity is also used in manual tracking, numerical predictions and a validation experiment were conducted. Predictions indicated that, if individuals utilize target velocity during coordination, increases in visual occlusion periods should yield increased phase lag between target and hand, proportional to the occlusion period. Predictions also suggest that increased occlusion yields increased coordination variability. An experiment having participants coordinate with the same stimuli and occlusion conditions was conducted to verify the predictions. Comparison of prediction and experimental results provides strong agreement that individuals use target velocity to prospectively control coordinated movements.

Original languageEnglish (US)
Pages (from-to)24-31
Number of pages8
JournalActa Psychologica
Volume149
DOIs
StatePublished - 2014

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Eye Movements
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Prediction

Keywords

  • Manual coordination
  • Motion extrapolation
  • Prediction
  • Prospective control
  • Visual perception

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Arts and Humanities (miscellaneous)
  • Developmental and Educational Psychology

Cite this

Manual coordination with intermittent targets : Velocity information for prospective control. / Fine, Justin; Ward, Kimberly L.; Amazeen, Eric.

In: Acta Psychologica, Vol. 149, 2014, p. 24-31.

Research output: Contribution to journalArticle

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