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Sensory gating
Additional recommended knowledgeWhen one stimulus is presented, there is a response. But when it is followed by a second stimulus soon after, the response to the second stimulus is blunted. This is an adaptive mechanism to prevent overstimulation. It helps to focus on a stimulus among a host of other distracing stimuli. The mechanism of sensory gating involves feed-forward and feed-back inhibition of the stimulus perceived. It involves GABA-ergic and α7 nicotinergic receptor-mediated inhibition of the pyramidal neurons in the cornu ammonis (CA3) region of the hippocampus. See alsoCategories: Neurobiology | Neurophysiology |
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sensory_gating". A list of authors is available in Wikipedia. |