Influence of continual biofeedback on jaw pursuit-tracking in healthy adults and in adults with apraxia plus aphasia

K. J. Ballard, D. A. Robin

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Apraxia of speech (AOS) is a disorder of motor programming resulting from damage to premotor or anterior insula cortex. The authors used a pursuit visuomotor tracking task to test whether such a disorder interferes with development of motor programs or with modification of existing programs via integration of feedback. Healthy older adults (n = 15) and adults with AOS plus aphasia and nonverbal apraxia (n = 8) performed a jaw movement task with (a) continuous visual feedback of a target movement pattern and their jaw movement and (b) no feedback. Healthy speakers were more accurate and less variable with feedback, suggesting accurate development of a program and feedback integration. Apraxic individuals' performance accuracy and response to feedback suggested that the neurological damage impairs both development of new programs and efficient integration of feedback.

Original languageEnglish (US)
Pages (from-to)19-28
Number of pages10
JournalJournal of Motor Behavior
Volume39
Issue number1
DOIs
StatePublished - Jan 2007

Fingerprint

Apraxias
Aphasia
Jaw
Program Development
Sensory Feedback
Biofeedback (Psychology)

Keywords

  • Apraxia of speech
  • Motor control
  • Motor learning
  • Visuomotor tracking

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Neuroscience(all)
  • Psychology(all)
  • Experimental and Cognitive Psychology

Cite this

Influence of continual biofeedback on jaw pursuit-tracking in healthy adults and in adults with apraxia plus aphasia. / Ballard, K. J.; Robin, D. A.

In: Journal of Motor Behavior, Vol. 39, No. 1, 01.2007, p. 19-28.

Research output: Contribution to journalArticle

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