Action sharpens sensory representations of expected outcomes
Source
Nature Communications, 9, (2018), article 4288ISSN
Publication type
Article / Letter to editor

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Organization
PI Group Predictive Brain
SW OZ DCC CO
Journal title
Nature Communications
Volume
vol. 9
Languages used
English (eng)
Subject
Action, intention, and motor control; DI-BCB_DCC_Theme 2: Perception, Action and ControlAbstract
When we produce actions we predict their likely consequences. Dominant models of action control suggest that these predictions are used to 'cancel' perceptual processing of expected outcomes. However, normative Bayesian models of sensory cognition developed outside of action propose that rather than being cancelled, expected sensory signals are represented with greater fidelity (sharpened). Here, we distinguished between these models in an fMRI experiment where participants executed hand actions (index vs little finger movement) while observing movements of an avatar hand. Consistent with the sharpening account, visual representations of hand movements (index vs little finger) could be read out more accurately when they were congruent with action and these decoding enhancements were accompanied by suppressed activity in voxels tuned away from, not towards, the expected stimulus. Therefore, inconsistent with dominant action control models, these data show that sensorimotor prediction sharpens expected sensory representations, facilitating veridical perception of action outcomes.
This item appears in the following Collection(s)
- Academic publications [203935]
- Donders Centre for Cognitive Neuroimaging [3408]
- Electronic publications [102318]
- Faculty of Social Sciences [27314]
- Open Access publications [70966]
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