APPEARANCE MODE OF ANTICIPATORY RESPONS AND THE EVALUATION OF ADAPTIVE PROCESS IN A SERIAL MOTOR SKILL LEARNING

本研究的两个主要方向包括：(1)连续动作技能学习中预期反应的出现模式和适应过程的评价研究；(2)不同连续动作任务习得对预期反应出现模式和适应性鲁棒性的影响。第一个实验考察了4个刺激间隔（ISI: 300,400,500,600msec）的频率分布类型的影响。采用序列模式跟踪任务，对20名大学生进行反馈控制阶段的跟踪。结果表明，预期反应的频率分布类型取决于ISI，而不取决于模式的每个序列位置。第二个实验考察了预期功能在序列位置变化的反馈和自适应控制阶段的作用。结果发现，在自适应控制阶段，虽然反馈控制阶段的预期反应减少了，但预期反应减少了自适应标准的试验次数。第三项研究采用4种不同的连续跟踪任务，考察了反馈控制阶段和自适应控制阶段(1)：改变序列位置和自适应控制阶段(2)：改变ISI时预期反应的出现模式和鲁棒性作为评价适应性的标准。40名参与者被随机分配到刺激-反应(R)任务的四组（每组n=10）中的一组：强迫节奏任务：S-S和S-R组；自定进度任务：R-S和R-R组。结果表明，在反馈控制阶段，R-S组的反应准确性高于其他组。在自适应控制阶段(1)，S-S组进一步表现出较高的适应性。在自适应控制阶段(2)，习得序列模式语境结构的R-R组的鲁棒性反应高于其他组。这些结果在连续运动技能学习中的顺序依赖方面进行了讨论。少

The two main lines of this research involve: (1) studies on the appearance mode of anticipatory response and the evaluation of adaptive process in a serial motor skill learning; (2) studies on the effects of acquisition of a different serial motor task on the appearance mode of anticipatory response in adaptive process and robustness of adaptability. The first experiment examined the effect of the type of frequency distribution of four inter-stimulus interval (ISI: 300,400, 500, 600msec). Undergraduate students (n=20) tracked in feedback control phase using a tracking task of serial patterns. The results indicated that the type of frequency distribution of anticipatory response depend on the ISI, but not on each serial position of the pattern. The second experiment examined the role of anticipatory function in both feedback and adaptive control phase for the changed serial position. Results found that for the adaptive control phase, although the anticipatory response in feedback contro … More l phase decreased, anticipatory response reduced to the number of trials for adaptive criterion after that. Using four different serial tracking tasks, third study examined the appearance mode of anticipatory response and the robustness as a criterion for evaluation of adaptability in the feedback control phase and adaptive control phases(1):changed serial position and adaptive control phase(2):changed ISI. Forty participants were randomly assigned to one of four groups (n=10 per group) in each stimulus(S)-response (R) task: forced pace tasks: S-S and S-R group ; self paced tasks :R-S and R-R group. The results showed that in the feedback control phase R-S group indicated higher accurate response than other groups. In the adaptive control phase (1) S-S group further revealed high adaptability. In the adaptive control phase (2) R-R group, which learned the contextual structure of serial pattern showed higher robust response than other groups. These results were discussed in term of sequential dependency in serial motor skill learning. Less