Stomonyakov V, Angelov A, Boev M
Acta Physiol Pharmacol Bulg. 1976;2(3):44-52.
A comparison is made of the averaged evoked potentials (AEP) to auditory signals obtained in three different series: (a) a series consisting of high tones only to which no motor response was required; (b) a series consisting of low tones only in which quick motor response was required; (c) a series consisting of the same low tones and elimination of the requirement for quick motor response. It was found that the late positive wave P3 of AEP changed in the different series. In the series requiring no motor response P3 was poorly expressed, in the series requiring quick motor response P3 markedly increased and in the series in which the requirement for quick motor response was eliminated, it decreased again. The AEP configuration from the last series repeated that obtained from the indifferent signals. Moreover, on evoked potentials to signal trials and analysis was made of the dispersions in the P3 latencies under conditions requiring motor response. Their difference was found to be insignificant. The results obtained are explained by the assumption that the wave P3 reflects the activity of the central nervous system related to evaluation of the outcome and with the result of the prediction and the planned speed of the motor response.
对在三个不同系列中获得的听觉信号的平均诱发电位（AEP）进行了比较：（a）仅由高音组成的系列，对其不需要运动反应；（b）仅由低音组成的系列，其中需要快速运动反应；（c）由相同低音组成的系列，并消除了对快速运动反应的要求。发现AEP的晚期正波P3在不同系列中发生了变化。在不需要运动反应的系列中，P3表达不佳；在需要快速运动反应的系列中，P3明显增加；而在消除了对快速运动反应要求的系列中，它又下降了。最后一个系列的AEP配置重复了从无关信号中获得的配置。此外，对信号试验的诱发电位进行了分析，并对需要运动反应的条件下P3潜伏期的离散度进行了分析。发现它们的差异不显著。所得结果通过以下假设来解释：P3波反映了与结果评估以及预测结果和计划运动反应速度相关的中枢神经系统活动。
