THE PERFORMANCE OF VISUAL TASKS WHILE SEGMENTS OF THE INFEROTEMPORAL CORTEX ARE SUPPRESSED BY COLD
THE PERFORMANCE OF VISUAL TASKS WHILE SEGMENTS OF THE INFEROTEMPORAL CORTEX ARE SUPPRESSED BY COLD
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DOI：
10.1016/0166-4328(87)90240-3
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发表时间：
1987-01-01
影响因子：
2.7
通讯作者：
SALSBURY, K
中科院分区：
文献类型：
--
作者：
HOREL, JA;PYTKOJOINER, DE;SALSBURY, K
冷被用来抑制颞下皮层的功能。双侧放置三个冷冻器，一个在上级颞沟（sts）的下岸，一个在颞中回（mtg），一个在颞下回（itg）。动物进行了测试与延迟匹配到样品（DMS）和同时视觉辨别。DMS要求动物在0、15、30和45秒的延迟内回忆物体的投影图像。在DMS的性能期间，3个低温管分别冷却，只有itg冷却产生缺陷。这与双侧消融性病变的影响进行了比较;损伤itg而不是mtg会破坏DMS的性能。最大缺陷发生在ITG腹极和前端有小病变的动物中。冷却个别cryodes是没有影响的水平和垂直条纹之间的歧视，但产生了显着的赤字，从每3个位置上的歧视猴子的脸。冷却所有低温管导致所有视觉辨别的机会性能。单侧冷却对面孔辨别能力有显著影响，但两侧面孔辨别能力差异无显著性。
Cold was used to suppress the function of subdivisions of the inferotemporal cortex. Three cryodes were placed bilaterally, one over the lower bank of the superior temporal sulcus (sts), one over the middle temporal gyrus (mtg) and one over the inferior temporal gyrus (itg). The animals were tested with delayed match-to-sample (DMS) and simultaneous visual discriminations. The DMS required the animal to recall a projected image of an object over delays of 0, 15, 30 and 45 s. The 3 cryodes were cooled separately during the performance of the DMS and only itg cooling produced a deficit. This was compared to the effects of ablative bilateral lesions; damage to itg but not mtg disrupted performance of DMS. The greatest deficit was in an animal with a small lesion in the ventral pole and anterior extreme of itg. Cooling individual cryodes was without effect on a discrimination between horizontal and vertical stripes, but produced a significant deficit from each of the 3 placements on a discrimination between monkey faces. Chance performance on all visual discriminations resulted from cooling all cryodes. Unilateral cooling of all cryodes produced significant effects on the face discrimination, but there was no significant difference between the two sides in the severity of the deficit.