Motor learning as a function of KR schedule and characteristics of task-intrinsic feedback.
Forty participants (age range = 18-35 years) practiced 1 of 2 versions of an aiming task (with or without spring resistance). Knowledge of results (KR) was provided to them either immediately or after a delay of 2 trials. Immediate KR led to significantly more accurate performance during the 80 trials in acquisition but significantly less accurate performance on a 40-trial retention test given 24 hr after practice. In addition, the spring version of the task was performed significantly less accurately than the no-spring version on the 24-hr retention test. Most important, a significant interaction on the 24-hr retention test revealed that performance of the no-spring version of the task, when KR had been given after a 2-trial delay, was significantly more accurate than performance of the other 3 combinations of task version and KR schedule. The results suggest that KR dependency in motor skill learning is related to familiarity with task-intrinsic feedback in addition to the schedule on which KR is presented.
Anderson
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Department of Kinesiology, San Francisco State University, 1600 Holloway Ave., San Francisco, CA 94132-4161, USA. danders@sfsu.edu
Magill
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Sekiya
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D000293:Adolescent; D000328:Adult; D003071:Cognition; D005246:Feedback; D006801:Humans; D007858:Learning; D009068:Movement; D011897:Random Allocation; D012153:Retention, Psychology