期刊
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE
卷 33, 期 5, 页码 1117-1126出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0096-1523.33.5.1117
关键词
sequence production; motor equivalence; movement planning; obstacle avoidance; reaching
资金
- NIMH NIH HHS [KO2-MH0097701A1] Funding Source: Medline
- NINDS NIH HHS [R15 NS41887-01] Funding Source: Medline
Previous research suggests that motor equivalence is achieved through reliance on effector-independent spatiotemporal forms. Here the authors report a series of experiments investigating the role of such forms in the production of movement sequences. Participants were asked to complete series of arm movements in time with a metronome and, on some trials, with an obstacle between I or more of the target pairs. In moves following an obstacle, participants only gradually reduced the peak heights of their manual jumping movements. This hand path priming effect, scaled with obstacle height, was preserved when participants cleared the obstacle with I hand and continued with the other, and it was modulated by future task demands. The results are consistent with the hypothesis that the control of movement sequences relies on abstract spatiotemporal forms. The data also support the view that motor programming is largely achieved by changing just those features that distinguish the next movement to be made from the movement that was just made.
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