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Science 29 October 1976:
Vol. 194. no. 4264, pp. 542 - 544
DOI: 10.1126/science.973140
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Articles

Science, Vol 194, Issue 4264, 542-544
Copyright © 1976 by American Association for the Advancement of Science

articles

Disproportionate tonotopic representation for processing CF-FM sonar signals in the mustache bat auditory cortex

N Suga and PH Jen

The extent of cortical representation of the peripheral sensory field depends on its importance for species behavior. The orientation sound of the mustache bat (Pteronotus parnellii rubiginosus) invariably consists of long constant-frequency and short frequency-modulated components and is indispensable for its survival. A disproportionately large part of the auditory cortex of this bat is occupied by neurons processing the predominant components in the orientation signal and Doppler-shifted echoes. This disproportionate cortical representation related to features of biologically significant signals is comparable to that in the somatosensory and visual systems in many mammals, but it has not previously been observed in the auditory system.


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Modulation of Responses and Frequency Tuning of Thalamic and Collicular Neurons by Cortical Activation in Mustached Bats.
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Facilitatory and Inhibitory Frequency Tuning of Combination-Sensitive Neurons in the Primary Auditory Cortex of Mustached Bats.
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J. J. Wenstrup (1999)
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Auditory Motion Induces Directionally Dependent Receptive Field Shifts in Inferior Colliculus Neurons.
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Sharpening of Frequency Tuning by Inhibition in the Thalamic Auditory Nucleus of the Mustached Bat.
N. Suga, Y. Zhang, and J. Yan (1997)
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Cortical computational maps control auditory perception.
H Riquimaroux, S. Gaioni, and N Suga (1991)
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Auditory pathways to the frontal cortex of the mustache bat, Pteronotus parnellii.
J. Kobler, S. Isbey, and J. Casseday (1987)
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Neural axis representing target range in the auditory cortex of the mustache bat.
N Suga and W. O'Neill (1979)
Science 206, 351-353
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Harmonic-sensitive neurons in the auditory cortex of the mustache bat.
N Suga, W. O'Neill, and T Manabe (1979)
Science 203, 270-274
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Target range-sensitive neurons in the auditory cortex of the mustache bat.
W. O'Neill and N Suga (1979)
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Long-latency "subthreshold" collicular responses to the constant-frequency components emitted by a bat.
A. Grinnell and P Brown (1978)
Science 202, 996-999
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Cortical neurons sensitive to combinations of information-bearing elements of biosonar signals in the mustache bat.
N Suga, W. O'Neill, and T Manabe (1978)
Science 200, 778-781
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Aural representation in the Doppler-shifted-CF processing area of the auditory cortex of the mustache bat.
T Manabe, N Suga, and J Ostwald (1978)
Science 200, 339-342
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Amplitude spectrum representation in the Doppler-shifted-CF processing area of the auditory cortex of the mustache bat.
N Suga (1977)
Science 196, 64-67
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