Physiological Correlates of Auditory Perception

Dear Colleagues,

Processes related to hearing involve multiple functions undetaken within the central auditory nervous system (CANS). These processes encompass both sensory and cognitive abilities. Examples of such psychoacoustical properties include but are not limited to frequency selectivity, temporal acuity, adaptation, distortion, binaural integration, etc. This special issue will focus on sensory processing of the acoustic features that generate neuroelectrical activity within the CANS. When appropriate recording techniques are used, the synchronous activity manifests as auditory evoked potentials (AEPs) that can be recorded noninvasively from the scalp.

More specifically, we will explore the physiological correlates of auditory function. We will use AEPs as a measure of the underlying neural activity associated with various perceptual processes. The premise is that if a reliable AEP metric varies systematically as a relevant stimulus characteristic is manipulated, then the physiological index, which is immune to cognitive or linguistic influences, may be substituted for the perceptual measure.

We are seeking reports where physiological and psychoacoustical responses are acquired from the same participants under comparable stimulus conditions. The AEPs should be stimulus-dependent (i.e., sensory or exogenous) rather than event-related (i.e., cognitive or endogenous) responses; however, there is no restriction regarding the latency of response after the stimulus presentation. Additionally, there is no restriction on the property of hearing that is investigated. The stimulus used should cover a sufficient range to allow any relationship between the psychological and physiological measures to be revealed. This covariation should be readily apparent by examing a scatterplot, correlation coefficient, and effect size.

Identifying a correlation between physiological and psychoacosutical measures suggests that the former objective index could be used to evaluate the integrity of the neural substrate in typically developing and clinical populations who either unable or unwilling to respond behaviorally. We encourage submissions concerning scope of this special issue.

Prof. Dr. Craig A. Champlin,
Guest Editor

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• Auditory evoked potential
• Central auditory nervous system
• Physiological correlate
• Psychoacoustics
• Stimulus-dependent potential