The pudendal nerve, which innervates the anogenital region, has been implicated in micturition and in male sexual behavior. Electrical stimulation of this nerve in chloralose-anesthetized male cats evoked activity thoughout the anterior and posterior sigmoid, anterior ectosylvian, and anterior marginal gyri. The influence was bilateral at every site examined; no contralateral focus was found on the dorsum of the anterior hemisphere. The influence was not only bilateral, but of the same magnitude and nearly the same latency in both hemispheres. Furthermore, the gross potentials evoked by stimulation of either pudendal nerve were similar in configuration and amplitude to those evoked by ipsilateral forepaw and ipsilateral hind paw stimulation. Single-neuron recordings from four sites—medial and lateral precruciate and postcruciate—revealed that 17% of the sa neurons, 55% of the sb neurons, and 98% of the m neurons could be excited by pudendal nerve stimulation. Of the neurons tested and found to respond to the contralateral pudendal nerve, fully 98% also responded to the ipsilateral pudendal nerve. Some sa neurons that failed to respond to pudendal nerve stimulation were rendered less excitable to paw stimulation by conditioning stimulation of that nerve. These same sa neurons were also rendered less excitable to paw stimulation by conditioning stimulation of any of the other (nonexcitatory) paws. The property of coadunate behavior among the m neurons clearly included their responses to pudendal nerve stimulation. The numerous sensory inputs to m neurons—cutaneous, visual, auditory, vestibular, thoracic and pelvic splanchnic, and now pudendal—arrive via markedly different pathways, suggesting that the mechanism underlying coadunate behavior is to be found within the cerebral cortex itself. It is argued that in the intact, behaving animal these disparate sensory influences onto cerebral m neurons function to modulate the excitability of these neurons, their effective driving input arriving via the local sa (small-field) neurons that reside in layers II and III. It is further argued that some of these m neurons act to depress the excitability of certain sa neurons in their neighborhood.