Kostandov E A, Arzumanov Iu L, Pogrebinskiĭ S A
Zh Vyssh Nerv Deiat Im I P Pavlova. 1981 Sep-Oct;31(5):899-908.
The study was made on adult humans in a conflict situation. A combination of a non-verbal visual stimulus with an unrecognized emotional word substantially changes interhemispheric functional relations. The latency of the P300 potential in response to the first stimulus becomes reduced in the left occipital area. The potential amplitude considerably diminishes in all the recorded cortical areas (occipital, associative and central), but the reductions more pronounced in the left hemisphere. The nature of the P300 wave changes in response to the conditional stimulus is determined by psychophysiological properties of the "reinforcing" stimulus, in particular by its being non-recognized. Conditioned changes of the P300 wave in tests, where the "reinforcing" stimulus is not recognized, are very stable, and are not extinguished, despite repetitive presentation of the signal without combining it with the emotional word.
该研究针对处于冲突情境中的成年人类进行。非言语视觉刺激与未被识别的情感词汇相结合，会显著改变半球间的功能关系。对首个刺激做出反应的P300电位潜伏期在左侧枕叶区域缩短。在所有记录的皮质区域（枕叶、联合区和中央区），电位幅度大幅减小，但在左半球的减小更为明显。P300波对条件刺激做出反应的性质由“强化”刺激的心理生理特性决定，特别是由其未被识别这一特性决定。在测试中，当“强化”刺激未被识别时，P300波的条件性变化非常稳定，并且不会消退，尽管信号被重复呈现且未与情感词汇相结合。
