Center-surround interactions in foveal and peripheral vision. Export

@article{citeulike:984811, abstract = {The perceived contrast of a central stimulus can be decreased (surround suppression) or increased (surround facilitation) by the presence of surround stimuli. In this report we examined center-surround interactions in foveal and peripheral vision using contrast-matching tasks. We found that: (1) surround suppression became markedly stronger as the center-surround stimulus was moved toward the periphery; (2) surround facilitation diminished in the periphery; and (3) the suppression in the periphery was less orientation- and frequency-specific than that in the fovea, so that significant suppression was induced even when the central and surround gratings had very different orientations and spatial frequencies. The different center-surround interactions in the fovea and periphery can not be accounted for by cortical magnification, suggesting that center-surround interactions in the fovea and periphery are incommensurable and play different functional roles in human image processing.}, address = {Department of Psychology, Jordan Hall, Bldg. 420, Stanford University, 94305-2130, Stanford, CA, USA.}, author = {Xing, J. and Heeger, D. J.}, citeulike-article-id = {984811}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/10996610}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=10996610}, issn = {0042-6989}, journal = {Vision Research}, keywords = {center-surround, psychophysics, vision}, number = {22}, pages = {3065--3072}, posted-at = {2009-09-15 01:08:16}, priority = {2}, title = {Center-surround interactions in foveal and peripheral vision.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/10996610}, volume = {40}, year = {2000} }

TY - JOUR ID - citeulike:984811 L3 - citeulike-article-id:984811 N2 - The perceived contrast of a central stimulus can be decreased (surround suppression) or increased (surround facilitation) by the presence of surround stimuli. In this report we examined center-surround interactions in foveal and peripheral vision using contrast-matching tasks. We found that: (1) surround suppression became markedly stronger as the center-surround stimulus was moved toward the periphery; (2) surround facilitation diminished in the periphery; and (3) the suppression in the periphery was less orientation- and frequency-specific than that in the fovea, so that significant suppression was induced even when the central and surround gratings had very different orientations and spatial frequencies. The different center-surround interactions in the fovea and periphery can not be accounted for by cortical magnification, suggesting that center-surround interactions in the fovea and periphery are incommensurable and play different functional roles in human image processing. IS - 22 JF - Vision Research SN - 0042-6989 AD - Department of Psychology, Jordan Hall, Bldg. 420, Stanford University, 94305-2130, Stanford, CA, USA. EP - 3072 TI - Center-surround interactions in foveal and peripheral vision. VL - 40 SP - 3065 KW - center-surround KW - psychophysics KW - vision AU - Xing, J AU - Heeger, DJ PY - 2000/// UR - http://view.ncbi.nlm.nih.gov/pubmed/10996610 ER -