the activity of 221 single primary afferent units was recorded extracellularly in the trigeminal ( v ) ganglion of chloralose-anaesthetized cats to examine the receptive field properties of nonnociceptive and nociceptive cutaneous afferents and the effect of conditioning stimulation of the raphe system and orofacial afferents on the antidromic excitability of their brain stem endings in v subnucleus caudalis .
C0034671
raphe
C0006121
brain stem