Two groups of male volunteers (n = 8/group) performed 14 10-min. sessions of either alternate 30-sec. rotary-pursuit tracking and rehearsal of tracking or rotary-pursuit tracking and object-slide naming (nonrehearsal). Ten-min. problem-solving tasks separated these sessions. Results showed that subjects in the rotary-pursuit/mental rehearsal group displayed significantly enhanced tracking performance relative to those in the rotary-pursuit/object slide group, i.e., mean time-on-target scores of 12.8 sec. and 8.9 sec. per trial, respectively.
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