# Show Reference: "Color-selective attention need not be mediated by spatial attention"

Color-selective attention need not be mediated by spatial attention Journal of Vision, Vol. 9, No. 6. (8 June 2009), doi:10.1167/9.6.2 by Søren K. Andersen, Matthias M. Müller, Steven A. Hillyard
@article{andersen-et-al-2009,
abstract = {It is well-established that attention can select stimuli for preferential processing on the basis of non-spatial features such as color, orientation, or direction of motion. Evidence is mixed, however, as to whether feature-selective attention acts by increasing the signal strength of to-be-attended features irrespective of their spatial locations or whether it acts by guiding the spotlight of spatial attention to locations containing the relevant feature. To address this question, we designed a task in which feature-selective attention could not be mediated by spatial selection. Participants observed a display of intermingled dots of two colors, which rapidly and unpredictably changed positions, with the task of detecting brief intervals of reduced luminance of 20\% of the dots of one or the other color. Both behavioral indices and electrophysiological measures of steady-state visual evoked potentials showed selectively enhanced processing of the attended-color items. The results demonstrate that feature-selective attention produces a sensory gain enhancement at early levels of the visual cortex that occurs without mediation by spatial attention.},
author = {Andersen, S{\o}ren K. and M\"{u}ller, Matthias M. and Hillyard, Steven A.},
day = {8},
doi = {10.1167/9.6.2},
issn = {1534-7362},
journal = {Journal of Vision},
keywords = {attention, biology, feature-attention, visual},
month = jun,
number = {6},
pmid = {19761293},
posted-at = {2014-04-09 17:06:38},
priority = {2},
title = {Color-selective attention need not be mediated by spatial attention},
url = {http://dx.doi.org/10.1167/9.6.2},
volume = {9},
year = {2009}
}