In vitro intracellular recordings from gustatory neurons in the rat solitary nucleus.
The passive membrane properties of neurons in the gustatory zone of the nucleus tractus solitarius (NTS) of rats were studied using an in vitro brain slice preparation. Examination of responses evoked by a 0.5 nA, 100 ms depolarizing pulse suggests that at least two different types of neurons exist in the gustatory NTS: one responding with a low and the other with a high frequency of action potentials. These two neuron groups based on membrane properties might relate to various gustatory cell types recently categorized by morphological characteristics.
Bradley
R M
RM
Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor 48109-1078.
Sweazey
R D
RD
D000200:Action Potentials; D066298:In Vitro Techniques; D008526:Medulla Oblongata / Q000502:physiology*; D008564:Membrane Potentials; D009475:Neurons, Afferent / Q000502:physiology*; D013649:Taste / Q000502:physiology*