title: The relationship between knowledge of results and motor learning in Parkinsonian patients.
abstract: A simple timing movement was used to investigate augmented feedback on motor learning in Parkinson's disease (PD) patients and controls. During acquisition, participants received knowledge of results (KR) about their errors after every trial (100%) or every fifth trial (20%). Participants then performed a retention test without KR. Controls performed better on the retention test after having had 20% KR during acquisition. PDs showed superior retention with 100% KR. This suggests that the PD patients are more reliant on KR for learning motor skills; a difference that may be attributable to reduced proprioceptive acuity in PD patients.
authors.affiliation: Motor Behavior Laboratory, Department of Kinesiology, University of Nevada, 4505 Maryland Pkwy, Las Vegas 89154-3034, USA. mark@unlv.edu
authors.forename: Mark A
authors.initials: MA
authors.lastname: Guadagnoli
authors.forename: Berta
authors.initials: B
authors.lastname: Leis
authors.forename: Arend W A
authors.initials: AW
authors.lastname: Van Gemmert
authors.forename: George E
authors.initials: GE
authors.lastname: Stelmach
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D007721:Knowledge of Results, Psychological; D007858:Learning / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000503:physiopathology* / Q000523:psychology*; D011597:Psychomotor Performance / Q000502:physiology*