Aging effects on sensorimotor integration: A comparison of effector systems and feedback modalities

Christina R. Bronson-Lowe, Torrey Mark John Loucks, Edward Ofori, Jacob J Sosnoff

Research output: Contribution to journalArticle

Abstract

Research on motor aging has focused on visuomotor effects in limb musculature, with few comparisons across effectors or feedback modalities. The authors examined steady fine force control in oral and manual effectors under visual and auditory feedback in 13 young (19-23 years old) and 13 older (60-77 years old) participants, hypothesizing that force variability would increase with aging (a) more in the finger than the lip and (b) for both feedback modalities. The magnitude of variability increased with age for both visuomotor and audiomotor tasks but age-related differences were greater in the lip than the finger. These results point to increased variability as a potential early marker of changing motor function (prior to loss of strength) that extends beyond the visuomotor system.

Original languageEnglish (US)
Pages (from-to)217-230
Number of pages14
JournalJournal of Motor Behavior
Volume45
Issue number3
DOIs
StatePublished - May 1 2013

Keywords

  • Aging
  • Auditory feedback
  • Motor control
  • Visual feedback

ASJC Scopus subject areas

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

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