Global feature-based attention for motion and color

by: Melissa Sàenz, Giedrius T Buracas, Geoffrey M Boynton

Vision Research, Vol. 43, No. 6. (March 2003), pp. 629-637.

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Abstract

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.

@article{citeulike:2745328, abstract = {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.}, author = {S\`{a}enz, Melissa and Buracas, Giedrius T. and Boynton, Geoffrey M. }, citeulike-article-id = {2745328}, doi = {10.1016/S0042-6989(02)00595-3}, journal = {Vision Research}, keywords = {attention}, month = {March}, number = {6}, pages = {629--637}, posted-at = {2008-05-02 12:53:10}, priority = {2}, title = {Global feature-based attention for motion and color}, url = {http://dx.doi.org/10.1016/S0042-6989(02)00595-3}, volume = {43}, year = {2003} }

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TY - JOUR ID - citeulike:2745328 L3 - citeulike-article-id:2745328 TI - Global feature-based attention for motion and color JF - Vision Research VL - 43 IS - 6 SP - 629 EP - 637 N2 - 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. KW - attention AU - Sàenz, Melissa AU - Buracas, Giedrius AU - Boynton, Geoffrey PY - 2003/03// UR - http://dx.doi.org/10.1016/S0042-6989(02)00595-3 ER -

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