Korsakov I A
Zh Nevropatol Psikhiatr Im S S Korsakova. 1982;82(12):83-8.
The slow electrical activity of the thalamic region of the cortex, as well as the psychophysical characteristics of perception were registered in experiments on discerning light flashes in brightness in healthy probands, excitable psychopathic subjects and schizophrenic patients (simple form with apatho-abulic manifestations). It is shown that correct perception of the light flashes depends on stabilization of the thalamic region potentials in the time intervals of 100 to 200 msec following immediately the stimuli. In cases of erroneous perception no stabilization of such kind was noted. A certain relationship between the perception characteristics and the time course of the slow electrical activity on the one hand, and the proband's intention to select pairs of flashes of different or equal intensity as the signal was registered. As a result, in cases of correct perception of the signal pair of the flashes the stabilization of the slow potential was more marked than in cases of perceiving non-signal pairs. This fact points to an active character of the physiological regulation of the visual analyzer sensitivity.
在健康受试者、易激惹性精神病变个体和精神分裂症患者（表现为情感淡漠 - 意志缺失的简单形式）中，针对辨别亮度中的闪光进行的实验记录了皮质丘脑区域的缓慢电活动以及感知的心理物理学特征。结果表明，对闪光的正确感知取决于在刺激后紧接着的100至200毫秒时间间隔内丘脑区域电位的稳定。在错误感知的情况下，未观察到这种稳定情况。一方面，记录到感知特征与缓慢电活动的时间进程之间存在一定关系，另一方面，记录到受试者选择不同或相同强度闪光对作为信号的意图。结果，在正确感知闪光信号对的情况下，缓慢电位的稳定比感知非信号对的情况更为明显。这一事实表明视觉分析器敏感性的生理调节具有主动特性。
