Téllez-Villagra C, Vázquez-Pereyra F
Physiol Behav. 1986;37(6):939-44. doi: 10.1016/s0031-9384(86)80016-6.
To establish the relevancy of motor feedback in the evolution of evoked potentials during conditioning, recordings were made from the Caudate Nucleus (CN), the Lateral Geniculate Body (LGB), the Mesencephalic Reticular Formation (MRF), the Occipital Cortex (OC) and the Cerebellar Cortex (Cer. C) in immobilized and non-immobilized cats before and during classical conditioning. As a result of the conditioning we observed an enhancement of the average evoked potentials (AEP) recorded in CN and in LGB in those animals able to perform the conditioned response. In contrast, the AEP recorded in CN diminished in the immobilized animals, and no changes were observed in the recordings made from the other structures, except for the appearance of polyphasic components of small amplitude and high frequency (200 Hz) in the average evoked potentials' 2nd peak, recorded from LGB. From these results we conclude that the motor feedback produced by the execution of the response is important to establish the AEP changes observed in the CN.
为了确定在条件反射过程中运动反馈与诱发电位演变的相关性,在经典条件反射之前和期间,对固定和未固定的猫的尾状核(CN)、外侧膝状体(LGB)、中脑网状结构(MRF)、枕叶皮质(OC)和小脑皮质(Cer. C)进行了记录。作为条件反射的结果,我们观察到在那些能够做出条件反应的动物中,记录到的CN和LGB中的平均诱发电位(AEP)增强。相反,在固定动物中,记录到的CN中的AEP减小,并且在从其他结构进行的记录中未观察到变化,除了从LGB记录的平均诱发电位的第二个峰值中出现小幅度和高频(200 Hz)的多相成分。从这些结果我们得出结论,由反应执行产生的运动反馈对于建立在CN中观察到的AEP变化很重要。