Kamenskaia V G, Shefer S I
Zh Vyssh Nerv Deiat Im I P Pavlova. 1980 Jul-Aug;30(4):806-13.
It has been shown that EPs in the sensorimotor cortex of amygdalectomized cats appear in response to almost all burst of tone frequencies ranging from 0.2 to 10.0 khz. No EPs with maximal amplitudes and maximal response probability (observed in intact animals), have been recorded in response to frequencies of 0.8, 1.6 and 2.0 to 3.0 khz. The curves of dependency of EPs amplitude and appearance probability on the tone frequency had not a single statistically significant maximum. Partial ablation of the amygdala complex impairs frequency selectivity of sensosimotor cortical EPs revealed in intact animals. The obtained data suggest that the amygdala complex is an essential element of the system detecting biologically meaningful parameters of the acoustic signal.
研究表明,杏仁核切除猫的感觉运动皮层中的诱发电位(EPs)几乎在0.2至10.0千赫兹范围内的所有音调频率脉冲刺激下都会出现。在0.8、1.6以及2.0至3.0千赫兹频率刺激下,未记录到完整动物中观察到的具有最大振幅和最大反应概率的诱发电位。诱发电位振幅和出现概率与音调频率的依赖曲线没有一个具有统计学意义的单一最大值。杏仁核复合体的部分切除会损害完整动物中显示的感觉运动皮层诱发电位的频率选择性。所得数据表明,杏仁核复合体是检测声信号生物学意义参数的系统的重要组成部分。