LaBarba R C, Kingsberg S A, Martin P A, Pellegrin K
Department of Psychology, University of South Florida, Tampa 33620.
Neuropsychologia. 1989;27(2):247-50. doi: 10.1016/0028-3932(89)90176-0.
A dual task study of unfamiliar music perception during concurrent right and left hand finger tapping was conducted with a group of left-handed non-musicians. A pattern of symmetrical, bilateral suppression of finger tapping was observed during a concurrent music task of unfamiliar melody recognition. There was no evidence of trade-off effects in the dual task inasmuch as no interference in melody recognition was observed. The absence of attentional shifts strongly suggests that the bilateral symmetry in motor performance in the dual task condition reflects bilateralized cerebral organization among sinistrals for processing unfamiliar music.
对一组左利手非音乐家进行了一项双重任务研究，该研究要求他们在同时进行右手和左手手指敲击时感知不熟悉的音乐。在识别不熟悉旋律的同时进行音乐任务期间，观察到了手指敲击的对称双侧抑制模式。在双重任务中没有权衡效应的证据，因为在旋律识别中未观察到干扰。注意力没有转移，这有力地表明，双重任务条件下运动表现的双侧对称性反映了左利手在处理不熟悉音乐时大脑组织的双侧化。
