publication . Article . Other literature type . 2016

Dynamic Structure of Neural Variability in the Cortical Representation of Speech Sounds.

Dichter, BK; Bouchard, KE; Chang, EF;
Open Access
  • Published: 13 Jul 2016
  • Publisher: eScholarship, University of California
  • Country: United States
Abstract
Accurate sensory discrimination is commonly believed to require precise representations in the nervous system; however, neural stimulus responses can be highly variable, even to identical stimuli. Recent studies suggest that cortical response variability decreases during stimulus processing, but the implications of such effects on stimulus discrimination are unclear. To address this, we examined electrocorticographic cortical field potential recordings from the human nonprimary auditory cortex (superior temporal gyrus) while subjects listened to speech syllables. Compared with a prestimulus baseline, activation variability decreased upon stimulus onset, similar ...
Subjects
free text keywords: Temporal Lobe, Humans, Acoustic Stimulation, Brain Mapping, Factor Analysis, Statistical, Speech Perception, Evoked Potentials, Auditory, Fourier Analysis, Nonlinear Dynamics, Time Factors, Female, Male, Electrocorticography, ECoG, encoding, noise correlations, speech, superior temporal gyrus, variability, Neurology & Neurosurgery, Medical and Health Sciences, Psychology and Cognitive Sciences, Stimulus (physiology), Auditory cortex, Biology, Audiology, medicine.medical_specialty, medicine, Perception, media_common.quotation_subject, media_common, medicine.diagnostic_test, Articles
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publication . Article . Other literature type . 2016

Dynamic Structure of Neural Variability in the Cortical Representation of Speech Sounds.

Dichter, BK; Bouchard, KE; Chang, EF;