Membrane conductance changes associated with the response of motion sensitive insect visual neurons.
Intracellular recordings and impedance measurements from directionally-selective visual interneurons of the lobula plate of flies show that during motion, transmembrane conductance increases during both depolarizing responses to preferred directions and hyperpolarizing responses to anti-preferred directions. This provides direct evidence that these interneurons are postsynaptic to two separate populations of excitatory and inhibitory input elements.
Gilbert
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Division of Neurobiology, University of Arizona, Tucson 85721.
D000818:Animals; D004175:Diptera; D066298:In Vitro Techniques; D007395:Interneurons / Q000502:physiology; D008564:Membrane Potentials; D009039:Motion Perception; D009474:Neurons / Q000502:physiology*; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology*