Encoding of temporal information by timing, rate, and place in cat auditory cortex.

PloS One
Kazuo ImaizumiChristoph E Schreiner

Abstract

A central goal in auditory neuroscience is to understand the neural coding of species-specific communication and human speech sounds. Low-rate repetitive sounds are elemental features of communication sounds, and core auditory cortical regions have been implicated in processing these information-bearing elements. Repetitive sounds could be encoded by at least three neural response properties: 1) the event-locked spike-timing precision, 2) the mean firing rate, and 3) the interspike interval (ISI). To determine how well these response aspects capture information about the repetition rate stimulus, we measured local group responses of cortical neurons in cat anterior auditory field (AAF) to click trains and calculated their mutual information based on these different codes. ISIs of the multiunit responses carried substantially higher information about low repetition rates than either spike-timing precision or firing rate. Combining firing rate and ISI codes was synergistic and captured modestly more repetition information. Spatial distribution analyses showed distinct local clustering properties for each encoding scheme for repetition information indicative of a place code. Diversity in local processing emphasis and distribution ...Continue Reading

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Citations

Dec 15, 2010·Journal of Neurophysiology·Pingbo YinMitchell L Sutter
Feb 11, 2011·Journal of Neurophysiology·Jonathan Y ShihChristoph E Schreiner
Feb 4, 2011·Journal of Biosciences·Thomas A Terleph, Raphael Pinaud
Jun 28, 2011·Current Opinion in Neurobiology·Tatyana O SharpeeChristoph E Schreiner
May 17, 2011·Hearing Research·Kazuo ImaizumiChristoph E Schreiner
Feb 5, 2014·Current Opinion in Neurobiology·Christoph E Schreiner, Daniel B Polley
Aug 16, 2013·Journal of Neurophysiology·Juan M AbolafiaM V Sanchez-Vives
Feb 19, 2020·PLoS Computational Biology·Jong Hoon LeeDaniel Bendor

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