Evidence that raphe-spinal neurons mediate opiate and midbrain stimulation-produced analgesias.

Abstract

The present experiments were undertaken to assess the role of neurons in the nucleus raphe magnus (NRM) in mediating opiate and stimulation-produced analgesias. A cannode for both electric stimulation and local opiate microinjection was placed in the midbrain preiaqueductal gray region of decerebrate or chloralose-urethane anesthetized cats. Microelectrodes… (More)

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