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Not so primitive: context-sensitive meta-learning about unattended sound sequences


Todd, J and Provost, A and Whitson, LR and Cooper, G and Heathcote, A, Not so primitive: context-sensitive meta-learning about unattended sound sequences, Journal of Neurophysiology, 109 pp. 99-105. ISSN 0022-3077 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 the American Physiological Society

DOI: doi:10.1152/jn.00581.2012


Mismatch negativity (MMN), an evoked response potential elicited when a "deviant" sound violates a regularity in the auditory environment, is integral to auditory scene processing and has been used to demonstrate "primitive intelligence" in auditory short-term memory. Using a new multiple-context and -timescale protocol we show that MMN magnitude displays a context-sensitive modulation depending on changes in the probability of a deviant at multiple temporal scales. We demonstrate a primacy bias causing asymmetric evidence-based modulation of predictions about the environment, and we demonstrate that learning how to learn about deviant probability (meta-learning) induces context-sensitive variation in the accessibility of predictive long-term memory representations that underpin the MMN. The existence of the bias and meta-learning are consistent with automatic attributions of behavioral salience governing relevance-filtering processes operating outside of awareness.

Item Details

Item Type:Refereed Article
Research Division:Psychology
Research Group:Cognitive and computational psychology
Research Field:Decision making
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in psychology
UTAS Author:Heathcote, A (Professor Andrew Heathcote)
ID Code:98923
Year Published:2013
Web of Science® Times Cited:22
Deposited By:Medicine
Deposited On:2015-03-06
Last Modified:2017-10-31

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