Abstract
Extracellular recordings were made in nucleus paragigantocellularis lateralis (PGL) of therat in response to stimulation of the dorsal periaqueductoral gray matter (dPAG ), ventrolateralperiaqueductuctoral gray matter(vPAG ), deep peroneal nerve (DPN ), median nerve (MN) and greatsplanchnic nerve (GSPL). Stimulation of dPAG or MN evoked mainly excitatory responses while the responsesto stimulation of vPAG were inhibitory. However, stimulation of GSPL or DPN Produced both inhibitory andexcitatory responses. These neurons were not only responsive to one stimulation site, but were likely responsiveto any other stimulation sites. Eighty-nine percent of cells tested (73/82) received convergent inputs from twoor more sites Sixty percent (21/35) of the neurons were identified as cardiovascular unts based on theirbarosensitivity and slow conduction velocities of the descending axons projecting into the spinal cord.
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Citing This Article：
, , . . Acta Physiol Sin 1998; 50 (5): (in Chinese with English abstract).
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