Watching Your Foot Move—An fMRI Study of Visuomotor Interactions during Foot Movement

The objective of this study was to investigate brain areas involved in distinguishing sensory events caused by self-generated movements from similar sensory events caused by externally generated movements using functional magnetic resonance imaging. Subjects performed 4 types of movements: 1) self-g...

Full description

Saved in:
Bibliographic Details
Published in:Cerebral cortex (New York, N.Y. 1991) N.Y. 1991), 2007-08, Vol.17 (8), p.1906-1917
Main Authors: Christensen, Mark Schram, Lundbye-Jensen, Jesper, Petersen, Nicolas, Geertsen, Svend Sparre, Paulson, Olaf B., Nielsen, Jens Bo
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biomechanical Phenomena
cerebellum
Cerebellum - physiology
Electromyography
externally generated
Feedback, Psychological
Female
Foot - innervation
Foot - physiology
Humans
Magnetic Resonance Imaging
Male
Motor Cortex - physiology
Movement - physiology
Muscle, Skeletal - physiology
Nerve Net - physiology
Oxygen - blood
posterior parietal cortex
Psychomotor Performance - physiology
Rest - physiology
self-generated
Somatosensory Cortex - physiology
Visual Perception - physiology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The objective of this study was to investigate brain areas involved in distinguishing sensory events caused by self-generated movements from similar sensory events caused by externally generated movements using functional magnetic resonance imaging. Subjects performed 4 types of movements: 1) self-generated voluntary movement with visual feedback, 2) externally generated movement with visual feedback, 3) self-generated voluntary movement without visual feedback, and 4) externally generated movement without visual feedback, this design. This factorial design makes it possible to study which brain areas are activated during self-generated ankle movements guided by visual feedback as compared with externally generated movements under similar visual and proprioceptive conditions. We found a distinct network, comprising the posterior parietal cortex and lateral cerebellar hemispheres, which showed increased activation during visually guided self-generated ankle movements. Furthermore, we found differential activation in the cerebellum depending on the different main effects, that is, whether movements were self- or externally generated regardless of visual feedback, presence or absence of visual feedback, and activation related to proprioceptive input.
ISSN:1047-3211
1460-2199
DOI:10.1093/cercor/bhl101