Horel J A
Department of Anatomy and Cell Biology, SUNY, Health Science Center, Syracuse 13210.
Neuropsychologia. 1993 Oct;31(10):1067-77. doi: 10.1016/0028-3932(93)90033-v.
Cells in the monkey temporal cortex that respond selectively to faces suggest that monkeys might have a brain structure similar to that in humans where lesions produce prosopagnosia, but effects of lesions on retrieval of face discriminations have been ambiguous in monkeys. It is possible that the stimuli in the monkey experiments were contaminated with non-face elements that could be discriminated by other parts of the visual system. In this experiment we modified the image of a monkey face creating two faces that were identical except for their internal features. We trained monkeys to discriminate these faces and then reversibly suppressed the inferotemporal cortex with cold and tested their ability to recall them. Cooling the temporal cortex produced a severe impairment in retrieval of the discrimination that remained constant across six 40-trial replications.
猴子颞叶皮层中对面孔有选择性反应的细胞表明，猴子可能拥有与人类类似的脑结构，人类的这种脑结构损伤会导致面孔失认症，但在猴子中，损伤对面孔辨别能力恢复的影响一直不明确。有可能猴子实验中的刺激被非面孔元素污染了，而视觉系统的其他部分可以辨别这些非面孔元素。在本实验中，我们修改了猴脸图像，创建了两张除内部特征外完全相同的面孔。我们训练猴子辨别这些面孔，然后用冷却的方法可逆地抑制颞下回皮质，并测试它们回忆这些面孔的能力。冷却颞叶皮层会导致辨别能力恢复方面出现严重损伤，在六次每次40次试验的重复实验中，这种损伤保持不变。
