Thu, 21 Aug 2008 09:48:38 BST CiteULike: kcrawlik's library [100 articles] http://www.citeulike.org/user/kcrawlik/article/2745328 CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/kcrawlik/article/2745328 <i>Vision Research, Vol. 43, No. 6. (March 2003), pp. 629-637.</i><br /><br />We used a divided attention psychophysical task to test the hypothesis that visual attention to a stimulus feature1 facilitates the processing of other stimuli sharing the same feature. Performance on a dual-task was significantly better when human observers divided attention across two spatially separate stimuli sharing a common feature (same direction of motion or same color) compared to opposing features. This attentional effect was dependent upon the presence of competing stimuli. These results are consistent with a spatially global feature-based mechanism of attention that increases the response of cortical neurons tuned to an attended feature throughout the visual field. Global feature-based attention for motion and color Melissa Sàenz Giedrius Buracas Geoffrey Boynton doi:10.1016/S0042-6989(02)00595-3 Vision Research, Vol. 43, No. 6. (March 2003), pp. 629-637. 2008-05-02T11:14:23-00:00 2003 Vision Research 43 6 629 637 attention