Nishikawa Y, Hasegawa A, Koyama N, Yokota T
Department of Physiology, Osaka Dental University, Japan.
Brain Res. 1993 Mar 12;605(2):265-70. doi: 10.1016/0006-8993(93)91749-i.
The cortical projection of somatosensory lingual units in the nucleus ventralis posteromedialis (VPM) of the thalamus was studied in urethane-chloralose anesthetized cats. Ipsilateral lingual units were recorded from the lateral subdivision of nucleus ventralis posteromedialis parvocellularis (VPMpcl). They were antidromically excited following electrical stimulation of the ventral aspect of the coronal gyrus or its caudally adjacent orbital gyrus. From these same cortical areas, positive surface potentials were recorded following electrical stimulation of the ipsilateral lingual nerve. Electrical stimulation of the same cortical areas elicited jaw opening movement. Contralateral somatosensory lingual units were recorded from the VPM proper. They were antidromically excited following electrical stimulation of the SI somatosensory cortex.
在氨基甲酸乙酯 - 氯醛糖麻醉的猫中，研究了丘脑腹后内侧核（VPM）中体感舌部单位的皮质投射。同侧舌部单位从腹后内侧核小细胞部（VPMpcl）的外侧亚区记录。在电刺激冠状回腹侧或其尾侧相邻的眶回后，它们被逆向兴奋。从这些相同的皮质区域，在电刺激同侧舌神经后记录到正表面电位。电刺激相同的皮质区域引起张口运动。对侧体感舌部单位从VPM本部记录。在电刺激SI体感皮层后，它们被逆向兴奋。
