Klapp S T, Nelson J M, Jagacinski R J
California State University, Hayward.
J Mot Behav. 1998 Dec;30(4):301-22. doi: 10.1080/00222899809601346.
If people could tap 2 rhythms independently, 1 rhythm with each hand, training people to tap the rhythms separately should enable them to tap the rhythms concurrently. However, nonmusician participants in the present experiments were unable to produce accurate intervals when lapping bimanually after they had mastered the rhythms individually. That finding implies that tapping concurrent rhythms requires an integrated sensory-motor representation incorporating the actions of both hands into a single pattern. Although training the rhythms separately cannot specify an integrated code, such specification is possible with bimanual training. Bimanual training quickly led to accurate tapping, but most participants then did not tap correctly either of the separate rhythms that had been mastered in the context of concurrent tapping. That finding suggests that the integrated representation does not code either rhythm independently.
如果人们能够独立敲击两种节奏，每只手敲击一种节奏，那么训练人们分别敲击这些节奏应该能使他们同时敲击这些节奏。然而，在本实验中，非音乐家参与者在分别掌握节奏后双手同时敲击时，无法产生准确的间隔。这一发现意味着，同时敲击节奏需要一种整合的感觉运动表征，即将双手的动作整合为一个单一模式。虽然分别训练节奏无法指定一种整合的编码，但通过双手同时训练则有可能实现这种指定。双手同时训练能迅速带来准确的敲击，但随后大多数参与者都无法正确敲击在同时敲击情境中已经掌握的任何一种单独节奏。这一发现表明，整合表征不会独立编码任何一种节奏。
