||Does attention impair temporal discrimination? Examing non-attentional accounts.
Recently, Yeshurun and Levy (Psychol Sci 14:225–231, 2003) have provided evidence for the notion that visual attention impairs the temporal reso- lution of the visual system. SpeciWcally, the detection of a temporal gap within a visual stimulus was impaired when a cue directed attention towards the spatial loca- tion of the stimulus. As this negative cueing eVect is important to constrain theories about visual attention, we further investigated this novel eVect and assessed whether it truly reXects an attentional eVect. Experi- ment 1 examines whether the negative cueing eVect is due to local temporal interference, and Experiments 2 and 3 investigate whether it reXects a luminance con- found. The complete pattern of results argues against these alternatives and thus further strengthens the con- clusion of Yeshurun and Levy (Psychol Sci 14: 225–231, 2003).