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A common neural substrate for processing scenes and egomotion-compatible visual motion
- Source :
- Brain Structure & Function
- Publication Year :
- 2020
- Publisher :
- Springer Berlin Heidelberg, 2020.
-
Abstract
- Neuroimaging studies have revealed two separate classes of category-selective regions specialized in optic flow (egomotion-compatible) processing and in scene/place perception. Despite the importance of both optic flow and scene/place recognition to estimate changes in position and orientation within the environment during self-motion, the possible functional link between egomotion- and scene-selective regions has not yet been established. Here we reanalyzed functional magnetic resonance images from a large sample of participants performing two well-known “localizer” fMRI experiments, consisting in passive viewing of navigationally relevant stimuli such as buildings and places (scene/place stimulus) and coherently moving fields of dots simulating the visual stimulation during self-motion (flow fields). After interrogating the egomotion-selective areas with respect to the scene/place stimulus and the scene-selective areas with respect to flow fields, we found that the egomotion-selective areas V6+ and pIPS/V3A responded bilaterally more to scenes/places compared to faces, and all the scene-selective areas (parahippocampal place area or PPA, retrosplenial complex or RSC, and occipital place area or OPA) responded more to egomotion-compatible optic flow compared to random motion. The conjunction analysis between scene/place and flow field stimuli revealed that the most important focus of common activation was found in the dorsolateral parieto-occipital cortex, spanning the scene-selective OPA and the egomotion-selective pIPS/V3A. Individual inspection of the relative locations of these two regions revealed a partial overlap and a similar response profile to an independent low-level visual motion stimulus, suggesting that OPA and pIPS/V3A may be part of a unique motion-selective complex specialized in encoding both egomotion- and scene-relevant information, likely for the control of navigation in a structured environment. Electronic supplementary material The online version of this article (10.1007/s00429-020-02112-8) contains supplementary material, which is available to authorized users.
- Subjects :
- Adult
Male
Histology
Neural substrate
Computer science
media_common.quotation_subject
Stimulus (physiology)
Brain mapping
Functional magnetic resonance images
Young Adult
Neuroimaging
Perception
Image Processing, Computer-Assisted
Humans
Computer vision
Visual Pathways
media_common
Visual Cortex
Brain Mapping
brain mapping
functional magnetic resonance
OPA
optic flow
scene perception
V3A
business.industry
General Neuroscience
Optic flow
Flow field
Magnetic Resonance Imaging
Visual motion
Pattern Recognition, Visual
Visual Perception
Original Article
Female
Artificial intelligence
Anatomy
business
Scene perception
Functional magnetic resonance
Photic Stimulation
Subjects
Details
- Language :
- English
- ISSN :
- 18632661 and 18632653
- Volume :
- 225
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- Brain Structure & Function
- Accession number :
- edsair.doi.dedup.....d6cd93a2ac869fc65802ef307bc6b2ed