@article{ref1,
title="Object-based attention: Sensory enhancement or scanning prioritization",
journal="Acta psychologica",
year="2011",
author="Ho, Ming-Chou",
volume="138",
number="1",
pages="45-51",
abstract="The three experiments reported here test whether object-modulated attentional spreading can be obtained when the target location is 100% certain. Experiment 1 uses the reaction time (RT)-based flanker task similar to Shomstein and Yantis (2002), and replicates the null result of the object-modulated attentional spreading. RT and accuracy (ACC) have been shown to reflect different processes: postperceptual decision vs. perceptual process (Santee & Egeth, 1982). Experiment 2 adopts the data-limited ACC-based measure and reports that attention could spread within the attended object. To avoid ceiling effects, Experiment 3 adjusts the presentation time based on the trials where the target and flankers were compatible and on the same objects, and provides the convergent evidence supporting the object-modulated attentional spreading. These results suggest that because the RT-based measure is less sensitive in reflecting the quality of perceptual representations, it is not sufficiently a strong evidence to distinguish between sensory enhancement and scanning prioritization accounts.<p /> <p>Language: en</p>",
language="en",
issn="0001-6918",
doi="10.1016/j.actpsy.2011.05.004",
url="http://dx.doi.org/10.1016/j.actpsy.2011.05.004"
}