Selective Modulation of Early Visual Cortical Activity by Movement Intention
Document Type
Article
Publication Date
12-17-2019
Journal
Cerebral Cortex
Volume
29
Issue
11
First Page
4662
Last Page
4678
URL with Digital Object Identifier
10.1093/cercor/bhy345
Abstract
© 2019 The Author(s) 2019. Published by Oxford University Press. All rights reserved. The primate visual system contains myriad feedback projections from higher-to lower-order cortical areas, an architecture that has been implicated in the top-down modulation of early visual areas during working memory and attention. Here we tested the hypothesis that these feedback projections also modulate early visual cortical activity during the planning of visually guided actions. We show, across three separate human functional magnetic resonance imaging (fMRI) studies involving object-directed movements, that information related to the motor effector to be used (i.e., limb, eye) and action goal to be performed (i.e., grasp, reach) can be selectively decoded-prior to movement-from the retinotopic representation of the target object(s) in early visual cortex. We also find that during the planning of sequential actions involving objects in two different spatial locations, that motor-related information can be decoded from both locations in retinotopic cortex. Together, these findings indicate that movement planning selectively modulates early visual cortical activity patterns in an effector-specific, target-centric, and task-dependent manner. These findings offer a neural account of how motor-relevant target features are enhanced during action planning and suggest a possible role for early visual cortex in instituting a sensorimotor estimate of the visual consequences of movement.
Notes
This article is freely available to read from the publisher