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Physiology of Higher Central Auditory Processing and Plasticity

Town, SM; Bizley, JK; (2021) Physiology of Higher Central Auditory Processing and Plasticity. In: Litovsky, RY and Goupell, MJ and Fay, RR and Popper, AN, (eds.) Physiology of Higher Central Auditory Processing and Plasticity. (pp. 349-383). Springer: Cham, Switzerland.

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Abstract

Binaural cue processing requires central auditory function as damage to the auditory cortex and other cortical regions impairs sound localization. Sound localization cues are initially extracted by brainstem nuclei, but how the cerebral cortex supports spatial sound perception remains unclear. This chapter reviews the evidence that spatial encoding within and beyond the auditory cortex supports sound localization, including the integration of information across sound frequencies and localization cues. In particular, this chapter discusses the role of brain regions across the cerebral cortex that may be specialized for extracting and transforming the spatial aspects of sounds and extends from sensory to parietal and prefrontal cortices. The chapter considers how the encoding of spatial information changes with attention and how spatial processing fits within the broader context of auditory scene analysis by cortical networks. The importance of neural plasticity in binaural processing is outlined, including a discussion of how changes in the mapping of localization cues to spatial position allow listeners to adapt to changes in auditory input throughout life and after hearing loss. The chapter ends by summarizing some of the open questions about the central processing of binaural cues and how they may be answered.

Type: Book chapter
Title: Physiology of Higher Central Auditory Processing and Plasticity
ISBN-13: 978-3-030-57099-6
DOI: 10.1007/978-3-030-57100-9_12
Publisher version: https://doi.org/10.1007/978-3-030-57100-9_12
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Auditory cortex, Auditory scene analysis, Cortical inactivation, Cue integration, Coordinate frames, Descending connectivity, Neuropsychology, Parietal cortex, Plasticity, Prefrontal cortex, Sound localization, Spatial processing
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > The Ear Institute
URI: https://discovery.ucl.ac.uk/id/eprint/10125493
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