Levine S C, Levy J
Brain Cogn. 1986 Jul;5(3):291-306. doi: 10.1016/0278-2626(86)90033-3.
Perceptual asymmetries for processing chimeric faces were investigated in dextral subjects, ranging in age from 5 years to elderly adults. The task involved deciding which member of a pair of face chimeras presented in free vision looks happier, the one with the smile to the left or its mirror image with the smile to the right (Levy, Heller, Banich, & Burton, 1983a, Brain and Cognition, 2, 404-419). A leftward bias was found for all age groups. However, kindergarteners' mean asymmetry score was lower than that of all other groups combined, most likely due to noise in their data. The direction in which subjects drew circles with their left and right hands was also observed as an index of interhemispheric communication. All groups showed a bias toward drawing the circles in concordant directions except the kindergarteners. The relation between subjects' performance on the circle drawing and facebook tasks is discussed.
研究了年龄在5岁至老年人之间的右利手受试者处理嵌合面孔时的感知不对称性。任务是判断自由视觉中呈现的一对面孔嵌合体中哪一个看起来更开心，是微笑在左边的那个，还是微笑在右边的镜像（Levy、Heller、Banich和Burton，1983a，《大脑与认知》，2，404 - 419）。发现所有年龄组都存在向左的偏差。然而，幼儿园儿童的平均不对称得分低于其他所有组得分之和，很可能是由于他们数据中的噪声。还观察了受试者用左手和右手画圈的方向，作为半球间交流的指标。除幼儿园儿童外，所有组在画圈方向上都表现出一致的偏向。讨论了受试者在画圈任务和面部嵌合体任务中的表现之间的关系。
