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Brain Behav Evol. 1990;36(4):237-48.

Auditory cortex of the long-eared hedgehog (Hemiechinus auritus). I. Boundaries and frequency representation.

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Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Israel.


The boundaries of the primary auditory cortex of the long-eared hedgehog, Hemiechinus auritus, were determined by single-cell recordings, myeloarchitecture and retrograde horseradish peroxidase labeling in the medial geniculate, using anesthetized animals. The auditory cortex is located on the lateral surface of the temporal cortex, medial to the rhinal fissure. Responses to pure tones revealed an orderly representation of best frequencies in the primary auditory cortex, with low frequencies represented rostrally and high frequencies caudally. A second auditory field caudal to the primary one was indicated.

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