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Development of auditory neuronal responses in avian embryos

Konishi, Masakazu (1973) Development of auditory neuronal responses in avian embryos. Proceedings of the National Academy of Sciences of the United States of America, 70 (6). pp. 1795-1798. ISSN 0027-8424. PMCID PMC433599.

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Neurons in the cochlear nuclei of duck embryos become responsive to tonal stimuli in an orderly spatial and temporal sequence. Cells responding to lower frequencies are recorded before those responding to higher frequencies. Auditory neurons are spatially arranged according to their characteristic frequencies, indicating a point-by-point projection of the basilar membrane. Areas of the nuclei where the apical segment of the basilar membrane projects become responsive to sound before regions representing more basal segments. These progressive changes with age are accompanied by a gradual rise both in neuronal sensitivity and in frequency range of maximum sensitivity. The development of auditory neural responses is timed to prepare the embryo for the onset of prenatal mother-young communication.

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Additional Information:Copyright © 1973 by the National Academy of Sciences. Communicated by Peter Marler, April 11, 1973. I thank Mr. D. Caswell and Drs. G. Gottlieb and L. Oring for the recordings of wild mallard calls and Dr. E. G. Wever and Mrs. Ann Cox of the Auditory Research Laboratories of Princeton University for histological assistance. This work was supported by Grant GB 12729 from the National Science Foundation.
Funding AgencyGrant Number
NSFGB 12729
Subject Keywords:auditory-vocal behavior, single-unit recording, tonotopic organization, change in threshold
PubMed Central ID:PMC433599
Record Number:CaltechAUTHORS:KONpnas76
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1229
Deposited By: Tony Diaz
Deposited On:05 Jan 2006
Last Modified:11 Nov 2015 22:05

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