Effects of aging on action-intentional programming

Academic Article

Abstract

  • © 2017 Informa UK Limited, trading as Taylor & Francis Group. Background: Action-intentional programs control “when” we initiate, inhibit, continue, and stop motor actions. The purpose of this study was to learn if there are changes in the action-intentional system with healthy aging, and if these changes are asymmetrical (right versus left upper limb) or related to impaired interhemispheric communication. Methods: We administered tests of action-intention to 41 middle-aged and older adults (61.9 ± 12.3 years). Results: Regression analyses revealed that older age predicted a decrement in performance for tests of crossed motor response inhibition as well as slower motor initiation with the left hand. Conclusion: Changes in action-intention with aging appear to be related to alterations of interhemispheric communication and/or age-related right hemisphere dysfunction; however, further research is needed to identify the mechanisms for age-related changes in the brain networks that mediate action-intention.
  • Authors

    Published In

    Digital Object Identifier (doi)

    Author List

  • Shoraka AR; Otzel DM; M Zilli E; Finney GR; Doty L; Falchook AD; Heilman KM
  • Start Page

  • 244
  • End Page

  • 258
  • Volume

  • 25
  • Issue

  • 2