Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Two cortical systems for reaching in central and peripheral vision.

Jérôme Prado1, Simon Clavagnier, Hélène Otzenberger

  • 1INSERM U371, Cerveau et Vision, Department of Cognitive Neurosciences, 69675 Bron Cedex, France. jprado@isc.cnrs.fr

Neuron
|December 13, 2005
PubMed
Summary

Visually guided hand movements involve distinct neural systems for central and peripheral vision. Reaching to peripheral targets engages a broader brain network than reaching to central targets.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Neural representations of non-symbolic magnitudes show familial specificity in the right intraparietal sulcus.

Cerebral cortex (New York, N.Y. : 1991)·2026
Same author

Performance of CT-guided spatial normalization for semi-quantification of dopamine transporter SPECT and detection of nigrostriatal degeneration.

Annals of nuclear medicine·2026
Same author

Home numeracy experiences are associated with number-related brain activity and connectivity in early childhood.

NPJ science of learning·2026
Same author

Simultaneous perfusion and dopaminergic imaging using dual-isotope CZT SPECT/CT in dementia with Lewy bodies.

EJNMMI research·2026
Same author

Neurocognitive mechanisms underlying multiplication and subtraction performance in adults and skill development in children: A scoping review.

Current opinion in behavioral sciences·2026
Same author

Patterns of solution times for simple addition problems in 12-year-old children are not compatible with retrieval models: A rebuttal to Andras and Macizo (2025).

Journal of experimental child psychology·2026

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Human Motor Control

Background:

  • Parietal lobe lesions can cause optic ataxia, a deficit in visually guided hand movements.
  • Optic ataxia predominantly affects peripheral vision, suggesting separate neural pathways for foveal and extrafoveal reaching.

Purpose of the Study:

  • To investigate the neural substrates underlying visually guided reaching in central versus peripheral vision.
  • To test the hypothesis of two distinct neural systems for foveal and extrafoveal visual guidance of hand movements.

Main Methods:

  • Event-related functional magnetic resonance imaging (fMRI) was employed in healthy adult subjects.
  • Brain activity was recorded during reaching tasks towards visual targets presented in central and peripheral visual fields.

Related Experiment Videos

Main Results:

  • Reaching to central visual targets activated a network including the medial intraparietal sulcus (mIPS) and caudal dorsal premotor cortex (PMd).
  • Reaching to peripheral visual targets additionally engaged the parieto-occipital junction (POJ) and a rostral part of PMd.
  • Peripheral reaching involved a more extensive cortical network compared to central reaching.

Conclusions:

  • The study provides evidence for two distinct neural systems governing visually guided reaching based on target eccentricity.
  • Peripheral visual field engagement recruits a broader cortical network, highlighting differential processing for central and peripheral visual information in motor control.