Parietal Reach Area

Using fMRI, we showed that human MIP, as in the monkey, updates remembered reach targets in an eye-centered frame during eye movements. We also showed how human parietal cortex differentially encodes movements of the eyes, left arm, or right arm. Finally, we have tested humans with parietal damage to show how this interferes with the eye-centered updating of reach targets. Currently we are using visuomotor adaptation paradigms in normal and brain damaged subjects to understand the role of parietal cortex in visuomotor transformations.

FERNANDEZ-RUIZ J, GOLTZ HC, VILIS T, CRAWFORD JD (2007)
Human 'parietal reach region' encodes visual stimulus coordinates, not movement direction, during reversing prism adaptation.
Cerebral Cortex (Published On-line)

VESIA M, MONTEON JA, SERGIO LE, CRAWFORD JD (2006)
Hemispheric Asymmetry in Memory-guided POinting during Single-pulse Transcranial Magnetic Stimulation of Human Parietal Cortex.
Journal of Neurophysiology 96(6): 3016-27

KHAN AZ, PISELLA L, VIGHETTO A, COTTON F, LUAUTÉ J, BOISSON D, SALEMME R, CRAWFORD JD and ROSSETTI Y (2005)
Optic Ataxia errors depend on remapped, not viewed, target location.
Nature Neuroscience 8: 418-420 (* Equal Authors)

KHAN AZ, PISELLA L, ROSSETTI Y, VIGHETTO A and CRAWFORD JD (2005)
Impairment of gaze-centred updating of reach targets in bilateral parietal-occipital damaged patients.
Cerebral Cortex 15(10): 1547-60

CRAWFORD JD, MEDENDORP WP, MAROTTA JJ (2004)
Spatial transformations for eye-hand coordination
Journal of Neurophysiology 92: 10-19

MEDENDORP WP, GOLTZ HC, CRAWFORD JD, VILIS T (2005)
Integration of target and effector information in human posterior.
parietal cortex for the planning of action
Journal of Neurophysiology 93: 954-962

MEDENDORP WP, GOLTZ H, VILIS T, CRAWFORD JD (2003)
Gaze-centered updating of visual space in human parietal cortex
The Journal of Neuroscience, 23(15): 6209-6214

Home | Biography & Contacts | Research | Laboratory | People & Projects | Publications

Web Courses | Lab Events | Research Links | Positions Available