Predictive coding over the lifespan: Increased reliance on perceptual priors in older adults-a magnetoencephalography and dynamic causal modelling study

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dc.contributor.authorChan, Jason S.
dc.contributor.authorWibral, Michael
dc.contributor.authorStawowsky, Cerisa
dc.contributor.authorBrandl, Mareike
dc.contributor.authorHelbling, Saskia
dc.contributor.authorNaumer, Marcus
dc.contributor.authorKaiser, Jochen
dc.contributor.authorWollstadt, Patricia
dc.contributor.funderLOEWE Zentrum AdRIAen
dc.date.accessioned2021-05-07T15:47:56Z
dc.date.available2021-05-07T15:47:56Z
dc.date.issued2021-04-09
dc.date.updated2021-05-07T15:26:35Z
dc.description.abstractAging is accompanied by unisensory decline. To compensate for this, two complementary strategies are potentially relied upon increasingly: first, older adults integrate more information from different sensory organs. Second, according to the predictive coding (PC) model, we form “templates” (internal models or “priors”) of the environment through our experiences. It is through increased life experience that older adults may rely more on these templates compared to younger adults. Multisensory integration and predictive coding would be effective strategies for the perception of near-threshold stimuli, which may however come at the cost of integrating irrelevant information. Both strategies can be studied in multisensory illusions because these require the integration of different sensory information, as well as an internal model of the world that can take precedence over sensory input. Here, we elicited a classic multisensory illusion, the sound-induced flash illusion, in younger (mean: 27 years, N = 25) and older (mean: 67 years, N = 28) adult participants while recording the magnetoencephalogram. Older adults perceived more illusions than younger adults. Older adults had increased pre-stimulus beta-band activity compared to younger adults as predicted by microcircuit theories of predictive coding, which suggest priors and predictions are linked to beta-band activity. Transfer entropy analysis and dynamic causal modeling of pre-stimulus magnetoencephalography data revealed a stronger illusion-related modulation of cross-modal connectivity from auditory to visual cortices in older compared to younger adults. We interpret this as the neural correlate of increased reliance on a cross-modal predictive template in older adults leading to the illusory percept.en
dc.description.sponsorshipLOEWE Zentrum AdRIA (Hessian initiative for the development of scientific and economic excellence (LOEWE); Neuronal Coordination Research Focus Frankfurt (NeFF))en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid631599en
dc.identifier.citationChan, J. S., Wibral, M., Stawowsky, C., Brandl, M., Helbling, S., Naumer, M. J., Kaiser, J. and Wollstadt, P. (2021) 'Predictive Coding Over the Lifespan: Increased Reliance on Perceptual Priors in Older Adults—A Magnetoencephalography and Dynamic Causal Modeling Study', Frontiers in Aging Neuroscience, 13, 631599 (14 pp). doi: 10.3389/fnagi.2021.631599en
dc.identifier.doi10.3389/fnagi.2021.631599en
dc.identifier.endpage14en
dc.identifier.issn1663-4365
dc.identifier.journaltitleFrontiers in Aging Neuroscienceen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/11259
dc.language.isoenen
dc.publisherFrontiers Mediaen
dc.relation.urihttps://www.frontiersin.org/articles/10.3389/fnagi.2021.631599/abstract
dc.rights© 2021 Chan, Wibral, Stawowsky, Brandl, Helbling, Naumer, Kaiser and Wollstadt. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectAgeingen
dc.subjectAgingen
dc.subjectMEGen
dc.subjectPredictive Codingen
dc.subjectMultisensory integrationen
dc.subjectTemporal Binding Windowen
dc.titlePredictive coding over the lifespan: Increased reliance on perceptual priors in older adults-a magnetoencephalography and dynamic causal modelling studyen
dc.typeArticle (peer-reviewed)en
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