Modeling of the response of midbrain auditory neurons in the rat to their vocalization sounds based on FM sensitivities

Bio Systems
M C KaoX Sun

Abstract

Single units were recorded from the inferior colliculus (IC) of anaesthetized rats in response to: (a) an FM tone, the frequency of which was randomly varied, and (b) a digitized rat vocalization sound. We hypothesized that these neurons may have 'orientation-specific' spectrotemporal receptive field (STRF) that can be used to estimate their responses to complex communication signals. Based on the FM response, we first estimated the cell's STRF which was then convolved with the spectrogram of the rat's vocalization call. A simple convolution gave only crude prediction of the cell's response to the vocalization sound. When inhibitory areas were added around certain parts of the STRF, a better match was found. We conclude that for some FM-sensitive neurons of the IC, STRF with inhibitory areas may account for their responses to vocalization sounds.

References

Jan 1, 1991·Experimental Brain Research·A Kirzinger, U Jürgens
Jan 1, 1991·Experimental Brain Research·P W PoonJ C Hwang
Apr 1, 1991·Hearing Research·B M Clopton, P M Backoff
Mar 1, 1995·The European Journal of Neuroscience·B H Gaese, J Ostwald

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Citations

Sep 4, 2007·Experimental Brain Research·T A Pincherli CastellanosJ-P Guillemot
Mar 12, 2004·Computer Methods and Programs in Biomedicine·Tsai-Rong ChangTzai-Wen Chiu
Dec 22, 2015·Hearing Research·Melissa A Papesh, Laura M Hurley
Aug 29, 2003·Journal of Neurophysiology·Daniel SutaJosef Syka

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