Annett M
Department of Psychology, University of Leicester, U.K.
Neuropsychologia. 1992 Nov;30(11):951-62. doi: 10.1016/0028-3932(92)90048-q.
Relationships between the skill of each hand and differences between the hands are described for a sample of 14-15-year-olds representative of the general population. The description is modelled on the account of Galaburda et al. (Neuropsychologia 25, 853-868, 1987) of relationships between asymmetries of the Planum Temporale (PT) and measures of PT area on each side, in order to show parallels between findings for the two types of asymmetry. For both PT and hand skill, the extent of asymmetry appears to depend on the greater variability of the weaker side rather than of the larger or "better" side. The findings are also described as a replication of the study of hand skill in children by Annett and Manning (Br. J. Psychol. 80, 213-226, 1989). As no score transformations were needed in the present sample, the grounds for doubt raised by Bishop (Handedness and Developmental Disorder, Blackwell, Oxford, 1990) about the earlier sample are removed. Repetition of the analyses for right-handed and left-handed writers separately demonstrates very close similarities for findings in the two hand preference groups. Theories about the mechanisms responsible for asymmetries appear to require the presence of factors which reduce brain area and hand skill on one side. For most people the reduction is to the right PT and to the left hand.
针对一组代表普通人群的14至15岁青少年样本，描述了每只手的技能与双手之间差异的关系。该描述以加拉布尔达等人（《神经心理学》25卷，853 - 868页，1987年）对颞平面（PT）不对称性与两侧PT面积测量值之间关系的描述为模型，以展示两种不对称性研究结果之间的相似之处。对于PT和手部技能而言，不对称程度似乎取决于较弱一侧更大的变异性，而非较大或“更好”一侧的变异性。这些发现也被描述为对安妮特和曼宁（《英国心理学杂志》80卷，213 - 226页，1989年）关于儿童手部技能研究的重复。由于本样本无需进行分数转换，因此消除了毕晓普（《利手与发育障碍》，布莱克韦尔出版社，牛津，1990年）对早期样本提出的怀疑理由。分别对右利手和左利手书写者进行重复分析表明，两个利手偏好组的研究结果非常相似。关于不对称性产生机制的理论似乎需要存在减少一侧脑区和手部技能的因素。对大多数人来说，减少的是右侧PT和左手。
