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Receptive fields of neurons in cat auditory cortex


, : Receptive fields of neurons in cat auditory cortex. Neirofiziologiya 13(5): 467-474

Receptive fields of primary auditory cortical neurons were investigated by direct stimulation of nerve fibers in different parts of the cochlea in cats anesthetized with Nembutal. The size of the excitatory receptive field depends on the location of the neuron in the cortical auditory area. The more caudal is the position of the neuron in the primary auditory cortical projection of the cochlea, the more extended its receptive field is. The most narrow and symmetrical receptive fields were found in the basal coil of the cochlea. The region of finest discrimination of acoustic signals is probably located in the basal coil of the cochlea which has the largest representation in the primary auditory cortex.

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