Distributed and opposing effects of incidental learning in the human brain

Hall, Michelle G, Naughtin, Claire K, Mattingley, Jason B and Dux, Paul E (2018) Distributed and opposing effects of incidental learning in the human brain. NeuroImage, 173 351-360. doi:10.1016/j.neuroimage.2018.02.068

Author Hall, Michelle G
Naughtin, Claire K
Mattingley, Jason B
Dux, Paul E
Title Distributed and opposing effects of incidental learning in the human brain
Journal name NeuroImage   Check publisher's open access policy
ISSN 1095-9572
Publication date 2018-03-07
Sub-type Article (original research)
DOI 10.1016/j.neuroimage.2018.02.068
Open Access Status Not yet assessed
Volume 173
Start page 351
End page 360
Total pages 10
Publisher Academic Press Inc.
Language eng
Subject 2808 Neurology
2805 Cognitive Neuroscience
Abstract Incidental learning affords a behavioural advantage when sensory information matches regularities that have previously been encountered. Previous studies have taken a focused approach by probing the involvement of specific candidate brain regions underlying incidentally acquired memory representations, as well as expectation effects on early sensory representations. Here, we investigated the broader extent of the brain's sensitivity to violations and fulfilments of expectations, using an incidental learning paradigm in which the contingencies between target locations and target identities were manipulated without participants' overt knowledge. Multivariate analysis of functional magnetic resonance imaging data was applied to compare the consistency of neural activity for visual events that the contingency manipulation rendered likely versus unlikely. We observed widespread sensitivity to expectations across frontal, temporal, occipital, and sub-cortical areas. These activation clusters showed distinct response profiles, such that some regions displayed more reliable activation patterns under fulfilled expectations, whereas others showed more reliable patterns when expectations were violated. These findings reveal that expectations affect multiple stages of information processing during visual decision making, rather than early sensory processing stages alone.
Keyword Expectation
Multi-voxel pattern analysis
Statistical learning
Visual cognition
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Pubmed Import
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Created: Wed, 14 Mar 2018, 10:04:13 EST