@article{ref1,
title="Reconsidering visual search",
journal="i-Perception",
year="2015",
author="Kristjánsson, Arni",
volume="6",
number="6",
pages="2041669515614670-2041669515614670",
abstract="The visual search paradigm has had an enormous impact in many fields. A theme running through this literature has been the distinction between preattentive and attentive processing, which I refer to as the two-stage assumption. Under this assumption, slopes of set-size and response time are used to determine whether attention is needed for a given task or not. Even though a lot of findings question this two-stage assumption, it still has enormous influence, determining decisions on whether papers are published or research funded. The results described here show that the two-stage assumption leads to very different conclusions about the operation of attention for identical search tasks based only on changes in response (presence/absence versus Go/No-go responses). Slopes are therefore an ambiguous measure of attentional involvement. Overall, the results suggest that the two-stage model cannot explain all findings on visual search, and they highlight how slopes of response time and set-size should only be used with caution.<p /> <p>Language: en</p>",
language="en",
issn="2041-6695",
doi="10.1177/2041669515614670",
url="http://dx.doi.org/10.1177/2041669515614670"
}