Fehn U, Streicher M, Ettlinger G, Brown J V
Cortex. 1985 Mar;21(1):91-110. doi: 10.1016/s0010-9452(85)80018-6.
Whereas in the monkey brain the representation of spatial direction (left/ right) is the same for visual and for tactual inflow, in the human brain visual and tactual lateral directions are not aligned with respect to one another. This anatomical feature of the human brain may account in part for the particular difficulty young sighted children have with laterally inverted forms. A small group of children who were totally blind since birth distinguished mirror pairs by touch significantly more easily than did sighted children of comparable age; and monkeys succeeded at cross-modal recognition of laterally inverted mirror pairs better (relative to control pairs) than did sighted children.
在猴脑中，视觉和触觉输入的空间方向（左/右）表征是相同的，而在人脑中，视觉和触觉的侧向方向彼此并不对齐。人脑的这一解剖学特征可能部分解释了有视力的幼儿在辨别侧向倒置图形时所遇到的特殊困难。一小群自出生起就完全失明的儿童通过触摸辨别镜像对的能力明显比同龄有视力的儿童要强；而且猴子在跨模态识别侧向倒置镜像对方面（相对于对照对）比有视力的儿童表现得更好。
