Lookup NU author(s): Sundeep Teki,
Dr Sukhbinder Kumar,
Professor Tim Griffiths
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Auditory working memory (WM) is the cognitive faculty that allows us to actively hold and manipulate sounds in mind over short periods of time. We develop here a particular perspective on WM for non-verbal, auditory objects as well as for time based on the consideration of possible parallels to visual WM. In vision, there has been a vigorous debate on whether WM capacity is limited to a fixed number of items or whether it represents a limited resource that can be allocated flexibly across items. Resource allocation models predict that the precision with which an item is represented decreases as a function of total number of items maintained in WM because a limited resource is shared among stored objects. We consider here auditory work on sequentially presented objects of different pitch as well as time intervals from the perspective of dynamic resource allocation. We consider whether the working memory resource might be determined by perceptual features such as pitch or timbre, or bound objects comprising multiple features, and we speculate on brain substrates for these behavioural models. This article is part of a Special Issue entitled SI: Auditory working memory. (c) 2016 Elsevier B.V. All rights reserved.
Author(s): Joseph S, Teki S, Kumar S, Husain M, Griffiths TD
Publication type: Review
Publication status: Published
Journal: Brain Research
Issue: Part B
Print publication date: 01/06/2016
Online publication date: 02/02/2016
Acceptance date: 25/01/2016
ISSN (print): 0006-8993
ISSN (electronic): 1872-6240
Publisher: ELSEVIER SCIENCE BV