Cerebral Cortex, Vol. 12, No. 9, 991-997,
September 2002
© 2002 Oxford University Press
Eye Position Signals Modulate Early Dorsal and Ventral Visual Areas
1 Graduate Program in Neuroscience, Siebens-Drake Research Institute, University of Western Ontario, London, Ontario N6G 2V4, Canada and , 2 CIHR Group for Action and Perception, Department of Physiology, Medical Sciences Building, University of Western Ontario, London, Ontario N6A 5C1, Canada
Address correspondence to Tutis Vilis, CIHR Group for Action and Perception, Department of Physiology, Medical Sciences Building, University of Western Ontario, London, Ontario N6A 5C1, Canada. Email: tutis.vilis{at}fmd.uwo.ca.
An internal sense of eye position is necessary to maintain the constancy of the visual world in spite of movements of the eyes. Neuroimaging studies have localized human homologs of monkey visual motion processing areas in MT/MST and also in the collateral sulcus (V4), an area that codes features within objects. We show that these two areas have a baseline fMRI signal that is modulated by eye position and that the preferred direction of the eye position signal is different in the two areas; increasing for ipsiversive eye positions in MT/MST and increasing for contraversive eye positions within the collateral sulcus. This baseline modulation is a true eye position signal; one that is present in the absence of visual motion stimuli. The difference in the preferred direction of the eye position signal may reflect the different transformations in these two areas; a transformation from a retinotopic (eye-centered) to an egocentric coordinate frame necessary for guiding action and to an object-centered frame for object recognition.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  O. A. Mullette-Gillman, Y. E. Cohen, and J. M. Groh Motor-Related Signals in the Intraparietal Cortex Encode Locations in a Hybrid, rather than Eye-Centered Reference Frame Cereb Cortex, August 1, 2009; 19(8): 1761 - 1775. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Bedard and J. N. Sanes Gaze and Hand Position Effects on Finger-Movement-Related Human Brain Activation J Neurophysiol, February 1, 2009; 101(2): 834 - 842. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. L. Gardner, E. P. Merriam, J. A. Movshon, and D. J. Heeger Maps of Visual Space in Human Occipital Cortex Are Retinotopic, Not Spatiotopic J. Neurosci., April 9, 2008; 28(15): 3988 - 3999. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Tanaka Spatiotemporal Properties of Eye Position Signals in the Primate Central Thalamus Cereb Cortex, July 1, 2007; 17(7): 1504 - 1515. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. McKyton and E. Zohary Beyond Retinotopic Mapping: The Spatial Representation of Objects in the Human Lateral Occipital Complex Cereb Cortex, May 1, 2007; 17(5): 1164 - 1172. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. P. Merriam, C. R. Genovese, and C. L. Colby Remapping in Human Visual Cortex J Neurophysiol, February 1, 2007; 97(2): 1738 - 1755. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Goossens, S. P. Dukelow, R. S. Menon, T. Vilis, and A. V. van den Berg Representation of Head-Centric Flow in the Human Motion Complex J. Neurosci., May 24, 2006; 26(21): 5616 - 5627. [Abstract] [Full Text] [PDF]
|
|