Walley R E
J Comp Physiol Psychol. 1982 Feb;96(1):12-25. doi: 10.1037/h0077858.
Eye blinks were conditioned to either the visual or nonvisual element of a compound conditioned stimulus. The visual element consisted of a series of electrical pulses to the optic chiasma, and the averaged evoked potentials (AEPs) produced by this stimulus were recorded in the dorsal lateral geniculate nucleus and the visual cortex. The initial surface positive component of the cortical AEP was enhanced only when the eye blinks were conditioned to the visual stimulus, an effect that cannot be attributed to nonspecific mechanisms. The "postsynaptic" component of the geniculate AEP was also enhanced, but this occurred regardless of whether the eye blinks were conditioned to the visual or nonvisual stimulus, an effect that appears to be entirely nonspecific. Data from recovery cycles indicate that this enhancement effect cannot be attributed to an inhibition of inhibitory interneurons in the lateral geniculate nucleus.
眨眼被条件化到复合条件刺激的视觉或非视觉成分上。视觉成分由一系列施加于视交叉的电脉冲组成,并且由该刺激产生的平均诱发电位(AEP)记录于背外侧膝状核和视觉皮层。仅当眨眼被条件化到视觉刺激时,皮层AEP的初始表面正向成分才会增强,这种效应不能归因于非特异性机制。膝状核AEP的“突触后”成分也增强了,但无论眨眼是被条件化到视觉刺激还是非视觉刺激,这种增强都会出现,这一效应似乎完全是非特异性的。恢复周期的数据表明,这种增强效应不能归因于外侧膝状核中抑制性中间神经元的抑制作用。