title: Presynaptic inhibition: primary afferent depolarization in crayfish neurons.
abstract: Inhibition of transmission between tactile sensory neurons and interneurons in the crayfish was investigated by intracellular recording int the presynaptic processes. Inhibition is correlated with a depolarization of the presynaptic process, as in the mammalian spinal cord; the depolarization is accompanied by a conductance increase, and is mediated by interneurons that can be excited by a variety of routes.
mesh_terms: D000818:Animals; D003400:Astacoidea; D001369:Axons / Q000502:physiology; D004558:Electric Stimulation; D005071:Evoked Potentials; D066298:In Vitro Techniques; D007395:Interneurons / Q000502:physiology; D008564:Membrane Potentials; D008839:Microelectrodes; D009431:Neural Conduction; D009433:Neural Inhibition; D009474:Neurons / Q000502:physiology*; D009475:Neurons, Afferent / Q000502:physiology*; D012032:Refractory Period, Electrophysiological; D013569:Synapses / Q000502:physiology*; D009435:Synaptic Transmission