Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults

Park H, Nannt J, Kayser C (2021)
Cortex 135: 298-310.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
The manner in which humans exploit multisensory information for subsequent decisions changes with age. Multiple causes for such age-effects are being discussed, including a reduced precision in peripheral sensory representations, changes in cognitive inference about causal relations between sensory cues, and a decline in memory contributing to altered sequential patterns of multisensory behaviour. To dissociate these putative contributions, we investigated how healthy young and older adults integrate audio-visual spatial information within trials (the ventriloquism effect) and between trials (the ventriloquism aftereffect). With both a model-free and (Bayesian) model-based analyses we found that both biases differed between groups. Our results attribute the age-change in the ventriloquism bias to a decline in spatial hearing rather than a change in cognitive processes. This decline in peripheral function, combined with a more prominent influence from preceding responses rather than preceding stimuli in the elderly, can also explain the observed age-effect in the ventriloquism aftereffect. Our results suggest a transition from a sensory-to a behavior-driven influence of past multisensory experience on perceptual decisions with age, due to reduced sensory precision and change in memory capacity. Copyright © 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.
Erscheinungsjahr
2021
Zeitschriftentitel
Cortex
Band
135
Seite(n)
298-310
eISSN
1973-8102
Page URI
https://pub.uni-bielefeld.de/record/2944963

Zitieren

Park H, Nannt J, Kayser C. Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults. Cortex. 2021;135:298-310.
Park, H., Nannt, J., & Kayser, C. (2021). Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults. Cortex, 135, 298-310. doi:10.1016/j.cortex.2020.12.001
Park, H., Nannt, J., and Kayser, C. (2021). Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults. Cortex 135, 298-310.
Park, H., Nannt, J., & Kayser, C., 2021. Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults. Cortex, 135, p 298-310.
H. Park, J. Nannt, and C. Kayser, “Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults”, Cortex, vol. 135, 2021, pp. 298-310.
Park, H., Nannt, J., Kayser, C.: Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults. Cortex. 135, 298-310 (2021).
Park, Hame, Nannt, Julia, and Kayser, Christoph. “Sensory- and memory-related drivers for altered ventriloquism effects and aftereffects in older adults”. Cortex 135 (2021): 298-310.

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PMID: 33422888
PubMed | Europe PMC

Preprint: 10.1101/2020.02.12.945949

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