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Predictive coding in a multisensory path integration task: An fMRI study.
- Source :
-
Journal of vision [J Vis] 2019 Sep 03; Vol. 19 (11), pp. 13. - Publication Year :
- 2019
-
Abstract
- During self-motion through an environment, our sensory systems are confronted with a constant flow of information from different modalities. To successfully navigate, self-induced sensory signals have to be dissociated from externally induced sensory signals. Previous studies have suggested that the processing of self-induced sensory information is modulated by means of predictive coding mechanisms. However, the neural correlates of processing self-induced sensory information from different modalities during self-motion are largely unknown. Here, we asked if and how the processing of visually simulated self-motion and/or associated auditory stimuli is modulated by self-controlled action. Participants were asked to actively reproduce a previously observed simulated self-displacement (path integration). Blood oxygen level-dependent (BOLD) activation during this path integration was compared with BOLD activation during a condition in which we passively replayed the exact sensory stimulus that had been produced by the participants in previous trials. We found supramodal BOLD suppression in parietal and frontal regions. Remarkably, BOLD contrast in sensory areas was enhanced in a modality-specific manner. We conclude that the effect of action on sensory processing is strictly dependent on the respective behavioral task and its relevance.
- Subjects :
- Acoustic Stimulation
Adult
Cognition physiology
Female
Fixation, Ocular physiology
Humans
Magnetic Resonance Imaging
Male
Movement physiology
Photic Stimulation
Young Adult
Auditory Perception physiology
Frontal Lobe physiology
Mental Processes physiology
Motion Perception physiology
Sensation physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1534-7362
- Volume :
- 19
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Journal of vision
- Publication Type :
- Academic Journal
- Accession number :
- 31561251
- Full Text :
- https://doi.org/10.1167/19.11.13