Resumen: Feature-based attention to color (FBAC) is the process that facilitates brain representation of colors, independently of spatial attention. While there is consistent evidence of endogenous FBAC, it is unknown whether FBAC occurs within the exogenous temporal window and whether this effect is contingent on task goals. In Experiment 1, 54 participants performed a Symbol- and a Color Task, while behavioral data were registered. In both tasks, the same stimuli were employed, but in one task participants were asked to detect symbols and in the other one colors. Distractor-target color congruence was manipulated by peripheric color distractors. In Experiment 2, 41 participants performed the same tasks (the distractor appearing 200 ms before target onset), while behavioral and electrophysiological data (ERPs) were recorded. The results are discussed in terms of their implications for feature-based attention theory and for the classical exogenous-endogenous attention distinction.
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