Intermittency of visual information and the frequency of rhythmical force production

Jacob J. Sosnoff, Karl M. Newell

Research output: Contribution to journalArticlepeer-review

Abstract

The authors examined the influence of intermittent (40-5,000 ms) visual information on the control of rhythmical isometric force output (0.5, 2.0, and 4.0 Hz) in 10 participants. Force variability decreased as a function of less intermittent visual information only in the 0.5- and 2.0-Hz tasks. Vision influenced the frequency structure of force output through 0-12 Hz in the 0.5-Hz task, but in only the 10.0- to 12.0-Hz range in the 2.0-Hz task and not in the 4.0-Hz task. The effective use of intermittent visual information in force output was mediated by task frequency, and that mediation was reflected in the differential emphasis of feedback and feedforward processes over multiple timescales of control.

Original languageEnglish (US)
Pages (from-to)325-336
Number of pages12
JournalJournal of Motor Behavior
Volume37
Issue number4
DOIs
StatePublished - Jul 2005
Externally publishedYes

Keywords

  • Force variability
  • Nyquist theorem
  • Timescales
  • Visuomotor processing

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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