Perceived size matters

Activity in early visual processing areas is often thought to reflect physical input from the retina, rather than conscious perception. A new study now finds that activity in V1 corresponds to perceived rather than actual object size.

[1]  R. Lotto,et al.  Responses of human visual cortex to uniform surfaces , 2004, Proceedings of the National Academy of Sciences of the United States of America.

[2]  D. Kersten,et al.  The representation of perceived angular size in human primary visual cortex , 2006, Nature Neuroscience.

[3]  Tomoka Naganuma,et al.  Neural Correlates for Perception of 3D Surface Orientation from Texture Gradient , 2002, Science.

[4]  A. Dobbins,et al.  Distance modulation of neural activity in the visual cortex. , 1998, Science.

[5]  David Whitney,et al.  Flexible Retinotopy: Motion-Dependent Position Coding in the Visual Cortex , 2003, Science.

[6]  Mitchell Glickstein,et al.  Tatsuji Inouye and the mapping of the visual fields on the human cerebral cortex , 1987, Trends in Neurosciences.

[7]  Frank Tong,et al.  Cognitive neuroscience: Primary visual cortex and visual awareness , 2003, Nature Reviews Neuroscience.

[8]  G. Holmes.  DISTURBANCES OF VISION BY CEREBRAL LESIONS , 1918, The British journal of ophthalmology.

[9]  D C Van Essen,et al.  Shifter circuits: a computational strategy for dynamic aspects of visual processing. , 1987, Proceedings of the National Academy of Sciences of the United States of America.

[10]  S Thorpe,et al.  Modulation of neural stereoscopic processing in primate area V1 by the viewing distance. , 1992, Science.

[11]  A. Cowey,et al.  Prime-sight in a blindsight subject , 2002, Nature Neuroscience.

[12]  J. M. Hupé,et al.  Cortical feedback improves discrimination between figure and background by V1, V2 and V3 neurons , 1998, Nature.

[13]  C. Büchel,et al.  Surface orientation discrimination activates caudal and anterior intraparietal sulcus in humans: an event-related fMRI study. , 2001, Journal of neurophysiology.