title: Chronometry of mentally versus physically practiced tasks in people with stroke.
abstract: OBJECTIVE
  The purpose of this study was to determine whether chronometry is appropriate for monitoring engagement in mental practice by comparing the time taken for people with chronic stroke to mentally and physically practice five tasks.
  
  
  METHODS
  Eighteen stroke participants mentally and physically rehearsed each task. Time was recorded for each of the three trials per task.
  
  
  RESULTS
  Participants required significantly more time to physically practice than to mentally practice tasks (all p < .05). A significantly greater amount of time for mental practice of the more-affected arm than for the less-affected arm was also observed (p < .01).
  
  
  CONCLUSIONS
  Because there was no agreement between the time taken to mentally and physically practice the tasks, chronometry does not appear to be valid for monitoring mental practice in this population.
authors.affiliation: Department of Occupational Therapy Education, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 2003, Kansas City, KS 66160, USA. awu@kumc.edu
authors.forename: Andy J
authors.initials: AJ
authors.lastname: Wu
authors.forename: Valerie
authors.initials: V
authors.lastname: Hermann
authors.forename: Jun
authors.initials: J
authors.lastname: Ying
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Page
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D019018:Imagery, Psychotherapy / Q000379:methods; D008297:Male; D008875:Middle Aged; D009048:Motor Skills; D009788:Occupational Therapy / Q000379:methods; D011214:Practice, Psychological; D000071939:Stroke Rehabilitation; D013647:Task Performance and Analysis; D013997:Time Factors; D014163:Transfer, Psychology