The function and the synaptic plasticity of the cerebellar visual areas.

确定小脑皮质区域的功能定位对于研究小脑信号处理具有重要意义。我们用麻醉大鼠研究了小脑背小梁旁和二脚区域的功能定位和信号处理。背侧小梁旁对视觉刺激有强烈的反应，引起浦肯野细胞的简单峰。二小腿对口周周围皮肤的触觉刺激反应强烈。通过同时记录该区域的颗粒细胞和大脑体感皮层的神经元群，我们发现了4-5Hz的周期性同步活动。我们还发现这些活动是通过脑桥核神经元的爆发活动来传递的。

It is important to identify functional localization in the cerebellar cortical regions in order to investigate cerebellar signal processing. Using rats under anesthesia, we studied functional localization and signal processing in the cerebellar dorsal paraflocculus and crus II areas. The dorsal paraflocculus had robust response to visual stimulation, which evoked simple spikes in Purkinje cells. The crus II had strong response to the tactile stimulation around the perioral skin. By recording from granule cells in this area and population of neurons in the cerebral somatosensory cortex simultaneously, we found periodic synchronous activities at 4-5Hz. We also revealed that these activities were transmitted by bursting activities of neurons in the pontine nuclei.