Brunk R, Czihak E, Oppermann B, Santibañez G
Acta Neurobiol Exp (Wars). 1979;39(6):443-52.
A conditioned audio-visual targeting reflex was elaborated in 12 freely moving cats. The cats had to localize the loudspeaker emitting by a tone of 1600 Hz, of 500 ms duration and 80 dB intensity. Each time one of the eight loudspeakers placed in front and behind the cat was activated and the targeting reaction rewarded by food. Normal cats attained the 80 percent criterion for the front and rear loudspeakers in 20 and 30 sessions, respectively. The influence of the transection of the corpus callosum on acquisition and retention of the targeting reaction was investigated. The split brain animals with pre-operative experience in the situation did not show any retention, but relearned the targeting of the frontal sources in 20 sessions. No relearning of the posterior sound sources was observed. The animals that had only post-operative training did not reach 80 percent of correct responses in 50 sessions. Corpus callosum transection influences the integration of the targeting reaction in different ways, depending on the position of the sound source and on pre-operative training.
在12只自由活动的猫身上建立了一种条件性视听定向反射。猫必须定位发出1600赫兹、持续时间500毫秒、强度80分贝音调的扬声器。每次激活放置在猫前后的八个扬声器中的一个，并通过食物奖励定向反应。正常猫分别在20次和30次训练中达到了前后扬声器80%的标准。研究了胼胝体横断对定向反应习得和保持的影响。术前有过这种情况经验的裂脑动物没有表现出任何保持，但在20次训练中重新学会了对额叶声源的定向。未观察到对后部声源的重新学习。仅术后接受训练的动物在50次训练中未达到80%的正确反应率。胼胝体横断根据声源位置和术前训练以不同方式影响定向反应的整合。
