Poliakova A G
Acta Neurobiol Exp (Wars). 1985;45(1-2):47-62.
The local cooling of parietal, frontal or motor cortical areas; in cats under Nembutal anesthesia changed evoked potentials (EPs) in pulvinar, lateral posterior and medial dorsal thalamic nuclei. Parietal cortex, cooling led to rapid and significant changes of visual EP and delayed but strong changes of somatic EP in the pulvinar-lateral posterior complex. In contrast, frontal cortex cooling led to fast changes of somatic EP in medial dorsal nucleus and caused delayed weak changes: of visual EP. Motor cortex cooling resulted in rapid transformations of both potentials, though the changes of somatic EP were more pronounced in medial dorsal nucleus. The modifications of both EP primary-and secondary components were modal- and system-dependent. Results suggest that polysensory cortical areas exert modal-specific corticofugal influences on signals of different modality or on signals of the same modality but different subcortical genesis in the association nuclei.
在戊巴比妥麻醉下的猫中，顶叶、额叶或运动皮层区域的局部冷却改变了丘脑枕、丘脑外侧后核和丘脑背内侧核的诱发电位（EPs）。冷却顶叶皮层会导致丘脑枕 - 丘脑外侧后复合体中视觉诱发电位的快速且显著变化以及体感诱发电位的延迟但强烈变化。相比之下，冷却额叶皮层会导致丘脑背内侧核中体感诱发电位的快速变化，并引起视觉诱发电位的延迟且微弱变化。冷却运动皮层会导致两种电位的快速变化，尽管体感诱发电位的变化在丘脑背内侧核中更为明显。诱发电位一级和二级成分的改变均依赖于模态和系统。结果表明，多感觉皮层区域对联合核中不同模态的信号或相同模态但不同皮层下起源的信号施加模态特异性的皮质传出影响。
