Lehman R A
Cortex. 1978 Dec;14(4):530-9. doi: 10.1016/s0010-9452(78)80028-8.
Rhesus monkeys were tested for lateral preferences during mirror-image shape discrimination and food recovery from a row of pellets. Position of recovered food was unrelated to hand preference or mirror-image preference. There was no significant difference in the number of individuals preferring right and left lateral mirror-image shapes. Individuals tended to retain the same mirror-image preference to the same degree upon repeated testing. Animals of greater weight had stronger preferences. In all these respects, the features of mirror-image preference resembled those previously described for hand preference during a simple reaching task. The strength of different lateral preferences expressed by each animal were not significantly related thus failing to support the concept that asymmetric bodily responses can serve as cues for right-left discrimination in the environment. However, when the direction as well as strength of preference was considered, there appeared to be a tendency for animals to prefer the mirror-image shape whose reward bias was opposite to that of the preferred hand. This finding might have been due to a positional bias though there was evidence against this possibility.
对恒河猴进行了镜像形状辨别和从一排小丸中找回食物时的侧向偏好测试。找回食物的位置与用手偏好或镜像偏好无关。在偏好右侧和左侧镜像形状的个体数量上没有显著差异。在重复测试时，个体倾向于在相同程度上保持相同的镜像偏好。体重较大的动物偏好更强。在所有这些方面，镜像偏好的特征类似于先前在简单伸手任务中描述的用手偏好的特征。每只动物表现出的不同侧向偏好的强度没有显著相关性，因此不支持不对称身体反应可作为环境中左右辨别的线索这一概念。然而，当考虑偏好的方向和强度时，动物似乎有倾向于偏好奖励偏差与偏好手相反的镜像形状。尽管有证据反对这种可能性，但这一发现可能是由于位置偏差。
