Walch J P, Blanc-Garin J
Cortex. 1987 Jun;23(2):189-205. doi: 10.1016/s0010-9452(87)80031-x.
Tactual laterality effects (T.L.E.) were examined in first- and second-grade children when performing a dichaptic task. Our procedure, a modified version of Witelson's standard dichaptic task, emphasized the type of errors made, so that we could construct a weighted index (W.I.) for scoring rather than a strictly dichotomous one. The same data were compared using the two types of scoring indexes stated above. T.L.E. occurred consistently with the W.I. scores only, both in two independent groups or in the same group at a year's interval, suggesting (1) that a strictly dichotomous index might lead to loss of information, (2) that the results are reliable at least at the group level. Results are discussed in terms of possible applications of such a procedure to investigating the relationship between performance (spatial processing) and brain organization (hemispheric balance).
在一年级和二年级儿童执行双手触觉分辨任务时，对触觉偏侧效应（T.L.E.）进行了研究。我们的程序是对威特elson标准双手触觉分辨任务的改进版本，强调了所犯错误的类型，以便我们能够构建一个加权指数（W.I.）进行评分，而不是严格的二分指数。使用上述两种评分指数对相同的数据进行了比较。仅在加权指数得分中，触觉偏侧效应在两个独立组或同组一年间隔时持续出现，这表明（1）严格的二分指数可能导致信息丢失，（2）结果至少在组水平上是可靠的。根据该程序在研究表现（空间处理）与脑组织（半球平衡）之间关系的可能应用对结果进行了讨论。
