Distinct Top-down and Bottom-up Brain Connectivity During Visual Perception and Imagery.
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ABSTRACT:
SUBMITTER: Dijkstra N
PROVIDER: S-EPMC5516016 | biostudies-literature | 2017 Jul
REPOSITORIES: biostudies-literature
Publications
Distinct Top-down and Bottom-up Brain Connectivity During Visual Perception and Imagery.
Dijkstra N N Zeidman P P Ondobaka S S van Gerven M A J MAJ Friston K K
Scientific reports 20170718 1
Research suggests that perception and imagination engage neuronal representations in the same visual areas. However, the underlying mechanisms that differentiate sensory perception from imagination remain unclear. Here, we examine the directed coupling (effective connectivity) between fronto-parietal and visual areas during perception and imagery. We found an increase in bottom-up coupling during perception relative to baseline and an increase in top-down coupling during both perception and imag ...[more]
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