Intermittent visual information and the multiple time scales of visual motor control of continuous isometric force production

Jacob J. Sosnoff, Karl M. Newell

Research output: Contribution to journalReview article

Abstract

In an experiment, we examined the effect of intermittency (from 25.6 Hz to 0.2 Hz) of visual information on continuous isometric force production as a function of force level (5%, 10%, 25%, and 50% of maximal voluntary contraction [MVC]). The amount of force variability decreased and the irregularity of force output increased as a function of increased visual intermittency rate. Vision was found to have an influence on the frequency structure of force output up to 12 Hz, and the 25% MVC force level had more high-frequency modulations with higher rates of visual information. The effective use of intermittent visual information is mediated nonlinearly by force level, and there are multiple time scales of visual control (range, -0-12 Hz) that are postulated to be a function of both feedback and feedforward control processes.

Original languageEnglish (US)
Pages (from-to)335-344
Number of pages10
JournalPerception and Psychophysics
Volume67
Issue number2
DOIs
StatePublished - Feb 2005

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Sensory Systems
  • Psychology(all)

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