Conditioned lid responses to light in dogs after removal of the visual cortex.
Conditioned lid responses to light in dogs after removal of the visual cortex.
复制标题
去除视觉皮层后，狗的条件性眼睑对光的反应。
DOI：
10.1037/h0053847
复制
发表时间：
1936
影响因子：
1.4
通讯作者：
E. Hilgard
中科院分区：
文献类型：
--
作者：
D. Marquis;E. Hilgard
在三只完全切除视觉皮层的狗和一只破坏上级丘的狗中，建立在对一股空气的非条件反射的基础上的条件性眼睑闭合的获得和消退率与正常狗相同。手术动物的潜伏期略有增加。条件反射建立在双侧枕叶切除手术后保留，使其出现自发在5天内。反应的唯一显著变化是其延迟增加。术后反应延迟的出现被证明是由于枕叶本身的切除，而不是麻醉。枕叶切除术后，正常的对光反射的频率或振幅没有明显改变，但潜伏期稍长。反射和条件反应的潜伏期增加的数量级相同的发生支持的解释，在减少的易化背景，随之而来的反应的总和期延长。作者提供的证据表明，“正常狗的条件反射与去除视觉皮层后的条件反射是一样的。”他们还指出，“正常的神经调节机制实际上已经不受枕叶切除的干扰。”证据表明，这种神经机制的基本轨迹是皮层下。“参考书目。（PsycINFO数据库记录（c）2016阿帕，保留所有权利）
In three dogs with complete removal of the visual cortex and one with destruction of the superior colliculi the rate of acquisition and extinction of conditioned eyelid closing, established on the basis of the unconditioned reflex to a puff of air, were the same as in normal dogs. There was a slight increase in latency in the operated animals. A conditioned response established before bilateral removal of the occipital lobes was retained after the operation, making its appearance spontaneously within 5 days. The only significant change in the response was its increased latency. The post-operative delay in appearance of the response was shown to be due to removal of the occipital lobes as such and not to anesthetization." The normal reflex opening to light was not appreciably altered in frequency or amplitude after occipital lobectomy, but showed a slightly longer latency. The occurrence of increased latency of the same order of magnitude for both the reflex and the conditioned response supports an explanation in terms of reduction of facilitory background with consequent lengthening of the summation period of the responses." The authors offer evidence indicating that" the conditioned response is the same in normal dogs as after removal of the visual cortex." They point out, also, that" the normal neural mechanism of conditioning has been practically undisturbed by removal of the occipital lobes. Evidence is presented that the essential locus of this neural mechanism is sub-cortical." Bibliography.(PsycINFO Database Record (c) 2016 APA, all rights reserved)