Issue Archive

Evoked responses of visceral nociceptive neurons in cat anterior cingulate gyrus revealed by intracellular recording techniques

Wu Minfan, Teng Guoxi

Laboratory of Neurophysiology,Brain Research Institute,China Medical University.Shenyang 110001,Liaoning

Abstract

With intracellular recording techniques, we investigated evoked responses and electrophysiological properties of neurons in anterior cingulate gyrus (ACG) to stimulating greater splanchnic nerve (GSN) in cats. Among 461 neurons, 176 were stimulus-relative and 285 stimulus-irrelative. According to the characteristics of the evoked responses, stimulus-relative neurons were classified into specific visceral nociceptive neurons (SVNNs, 64.77%), non-specific visceral nociceptive neurons (NSVNNs, 19.32%) and non-visceral nociceptive neurons (NVNNs, 15.91%). Modes of the evoked responses could be excitatory, inhibitory, or mixed ones.

Received: 　　Accepted:

Corresponding author: 　　E-mail:

Citing This Article：

Wu Minfan, Teng Guoxi. Evoked responses of visceral nociceptive neurons in cat anterior cingulate gyrus revealed by intracellular recording techniques. Acta Physiol Sin 2000; 52 (6): (in Chinese with English abstract).