title: Closed-loop control of a ballistic response.
abstract: The ability of Ss to maintain or improve the accuracy of force of a hammer strike in the presence or absence of KR was examined. 70 trials on a 10% KR schedule provided opportunities to examine this ability. Initial improvements were dependent on KR. More gradual improvements continued but could not separately be attributed to KR or non-KR processes. Although indications of subjective reinforcement were not significant, the process remained a plausible complement to external KR.
authors: a Department of Kinesiology , University of Waterloo.
authors: I D
authors: ID
authors: Williams
authors: E A
authors: EA
authors: Roy