Modulation of Corticofugal Signals by Synaptic Changes in Bat’s Auditory System

Nagase, Yoshihiro; Kashimori, Yoshiki

doi:10.1007/978-3-642-17537-4_16

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…We propose a network model for detecting the Doppler-shifted frequency [ 3 ]. The model consists of cochlea (Ch), inferior colliculus (IC), and Doppler-shifted constant frequency (DSCF) area, each of which is a linear array of frequency-tuned neurons.…”

Section: Modelmentioning

confidence: 99%

Modulation of frequency-tuning property of subcortical neurons elicited by corticofugal signals in bat’s auditory cortex

2011

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Section: Modelmentioning

confidence: 99%

Modulation of frequency-tuning property of subcortical neurons elicited by corticofugal signals in bat’s auditory cortex

2011

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“…Fig. 10. The R-Ch layer has one-dimensional array of neurons, each of which is tuned to a frequency of sounds.…”

Section: Modelmentioning

confidence: 99%

Neural Model of Auditory Cortex for Binding Sound Intensity and Frequency Information in Bat’s Echolocation

Mutoh

Kashimori

2011

Neural Information Processing

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Most species of bats making echolocation use the sound pressure level (SPL) and Doppler-shifted frequency of ultrasonic echo pulse to measure the size and velocity of target. The neural circuits for detecting these target features are specialized for amplitude and frequency analysis of the second harmonic constant frequency (CF2) component of Doppler-shifted echoes. The neuronal circuits involved in detecting these features have been well established. However, it is not yet clear the neural mechanism by which these neuronal circuits detect the amplitude and frequency of echo signals. We present here neural models for detecting SPL amplitude and Doppler-shifted frequency of echo sound reflecting a target. Using the model, we show that the tuning property of frequency is changed depending on the feedback connections between cortical and subcortical neurons. We also show SPL amplitude is detected by integrating input signals emanating from ipsi and contralatreal subcortical neurons.

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“…The Ch network has a frequency map by which sound frequency is encoded. The model for detecting frequency information of echo sound was based on the model previously presented by us [ 2 ].The SPL amplitude is encoded in to firing rate of IC neurons. The IC neurons encode SPL amplitude by means of a balance between excitatory connection from contralateral Ch neurons and inhibitory connection from ipsilateral ones, and then combine the amplitude and frequency information of echo sound.…”

mentioning

confidence: 99%

Neural mechanism of binding amplitude information of echo sound with its frequency one in echolocating bat

Mutoh

Kashimori

2012

BMC Neurosci

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Modulation of Corticofugal Signals by Synaptic Changes in Bat’s Auditory System

Cited by 3 publications

References 8 publications

Modulation of frequency-tuning property of subcortical neurons elicited by corticofugal signals in bat’s auditory cortex

Modulation of frequency-tuning property of subcortical neurons elicited by corticofugal signals in bat’s auditory cortex

Neural Model of Auditory Cortex for Binding Sound Intensity and Frequency Information in Bat’s Echolocation

Neural mechanism of binding amplitude information of echo sound with its frequency one in echolocating bat

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