Vestibular Cognition: The Effect of Prior Belief on Vestibular Perceptual Decision-Making

Ellis, Andrew W.; Klaus, Manuel P.; Mast, Fred W. (2017). Vestibular Cognition: The Effect of Prior Belief on Vestibular Perceptual Decision-Making. Journal of neurology, 264(Suppl 1), pp. 74-80. Springer-Medizin-Verlag 10.1007/s00415-017-8471-6

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Vestibular cognition is a growing field of interest and relatively little is known about the underlying mechanisms. We tested the effect of prior beliefs about the relative probability (50:50 vs. 80:20) of motion direction (yaw rotation) using a direction discrimination task. We analyzed choices individually with a logistic regression model and together with response times using a cognitive process model. The results show that self-motion perception is altered by prior belief, leading to a shift of the psychometric function, without a loss of sensitivity. Hierarchical drift diffusion analysis showed that at the group level, prior belief manifests itself as an offset to the drift criterion. However, individual model fits revealed that participants vary in how they use cognitive information in perceptual decision making. At the individual level, the response bias induced by a prior belief resulted either in a change in starting point (prior to evidence accumulation) or drift rate (during evidence accumulation). Participants incorporate prior belief in a self-motion discrimination task, albeit in different ways.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Psychology > Cognitive Psychology, Perception and Methodology

UniBE Contributor:

Ellis, Andrew; Klaus, Manuel Patrick and Mast, Fred

Subjects:

100 Philosophy > 150 Psychology

ISSN:

0340-5354

Publisher:

Springer-Medizin-Verlag

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Andrew William Ellis

Date Deposited:

08 Aug 2017 10:58

Last Modified:

31 Mar 2018 02:30

Publisher DOI:

10.1007/s00415-017-8471-6

PubMed ID:

28361254

Uncontrolled Keywords:

vestibular cognition, anticipation, bias, direction recognition, drift diffusion model, expectation, perceptual decision-making

BORIS DOI:

10.7892/boris.96643

URI:

https://boris.unibe.ch/id/eprint/96643

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