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Ageing and multisensory integration: A review of the evidence, and a computational perspective

Jones, Samuel A. and Noppeney, Uta (2021) Ageing and multisensory integration: A review of the evidence, and a computational perspective. Cortex, 138 (May). ISSN 00109452

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Abstract or description

The processing of multisensory signals is crucial for effective interaction with the environment, but our ability to perform this vital function changes as we age. In the first part of this review, we summarise existing research into the effects of healthy ageing on multisensory integration. We note that age differences vary substantially with the paradigms and stimuli used: older adults often receive at least as much benefit (to both accuracy and response times) as younger controls from congruent multisensory stimuli, but are also consistently more negatively impacted by the presence of intersensory conflict. In the second part, we outline a normative Bayesian framework that provides a principled and computationally informed perspective on the key ingredients involved in multisensory perception, and how these are affected by ageing. Applying this framework to the existing literature, we conclude that changes to sensory reliability, prior expectations (together with attentional control), and decisional strategies all contribute to the age differences observed. However, we find no compelling evidence of any age-related changes to the basic inference mechanisms involved in multisensory perception.

Item Type: Article
Uncontrolled Keywords: Multisensory integration; multisensory perception; aging; computational models; Bayesian causal inference
Faculty: School of Health and Social Care > Social Work and Social Welfare
Depositing User: Samuel JONES
Date Deposited: 26 Feb 2021 16:12
Last Modified: 06 Apr 2023 15:16

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