“右利手”的左撇子在近端和远端肌肉组织的运动控制上是否存在不同的偏侧化现象？

Do "right-armed" lefthanders have different lateralization of motor control for the proximal and distal musculature?

作者信息

Peters M, Pang J

机构信息

Dept. Psychology, University of Guelph.

出版信息

Cortex. 1992 Sep;28(3):391-9. doi: 10.1016/s0010-9452(13)80149-9.

DOI:10.1016/s0010-9452(13)80149-9

PMID:1395643

Abstract

Geschwind and Galaburda (1985) have suggested that specialization for the control of distal and proximal musculature might be located in different hemispheres in some individuals. Because inconsistent lefthanders (as defined by Ponton, 1987; Peters and Servos, 1989) tend to write with the left hand but throw with the right arm, and have a stronger right arm (Peters, 1990), it was thought that individuals in this group might provide evidence for the prediction made by Geschwind and Galaburda. This did not prove to be the case for tapping speed, where righthanders, inconsistent and consistent lefthanders all showed congruence. It appears that the question "are some left-handers right-armed?" can be answered only relative to specific activities.

摘要

盖什温德与加拉布尔达（1985年）提出，在某些个体中，控制远端和近端肌肉组织的特化可能位于不同的半球。由于不一致的左撇子（如庞顿在1987年所定义；彼得斯和塞尔沃斯在1989年所定义）倾向于用左手写字，但用右臂投掷，并且右臂更强壮（彼得斯，1990年），所以人们认为这一组个体可能为盖什温德与加拉布尔达所做的预测提供证据。但对于敲击速度而言，情况并非如此，在这方面右撇子、不一致的左撇子和一致的左撇子都表现出一致性。看来“有些左撇子是右臂优势吗？”这个问题只能相对于特定活动来回答。