Please use this identifier to cite or link to this item: https://doi.org/10.3758/s13414-013-0434-0
Title: Why rare targets are slow: Evidence that the target probability effect has an attentional locus
Authors: Hon, N. 
Tan, C.-H.
Keywords: Attention
Target Detection
Target Probability
Issue Date: 2013
Source: Hon, N.,Tan, C.-H. (2013). Why rare targets are slow: Evidence that the target probability effect has an attentional locus. Attention, Perception, and Psychophysics 75 (3) : 388-393. ScholarBank@NUS Repository. https://doi.org/10.3758/s13414-013-0434-0
Abstract: Target probability has a well-known effect on detection times: Targets that occur with lower probability are detected more slowly than their higher-probability counterparts. A long-standing issue of interest is what causes this effect. In the two experiments of this study, we examined the possibility that the target probability effect has an attentional locus. We report two key findings that are consistent with this hypothesis. First, we observed a magnification of the effect when the attentional resources available for target detection were limited. Second, we also observed the complementary pattern: an attenuation of the effect when more attentional resources were available for detection. We propose that the target probability effect is caused by an asymmetry in the attentional demands made by targets that occur with different probabilities, with low-probability targets being more attentionally demanding than high-probability ones. © 2013 Psychonomic Society, Inc.
Source Title: Attention, Perception, and Psychophysics
URI: http://scholarbank.nus.edu.sg/handle/10635/49855
ISSN: 19433921
DOI: 10.3758/s13414-013-0434-0
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