NDLI: Attentional capture by singletons is contingent on top-down control settings: Evidence from electrophysiological measures

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Attentional capture by singletons is contingent on top-down control settings: Evidence from electrophysiological measures

Content Provider	Semantic Scholar
Author	Lien, Mei-Ching Ruthruff, Eric Cornett, Logan
Copyright Year	2010
Abstract	The present study examined whether the capture of spatial attention is driven by stimulus salience (e.g., object uniqueness) or by a match to current attentional control settings (contingent capture). We measured the N2pc effect, a component of the event-related brain potential thought to reflect lateralized attentional allocation. On every trial, a noninformative cue display containing a colour singleton box was followed by a target display of letters. Participants searched for a target letter in a specified colour (in Experiments 1–3) or within a specified shape (in Experiment 4) while ignoring other stimuli. The key manipulation was whether the singleton cue contained the target-defining feature (e.g., a specific colour). Experiment 1 revealed signs of attention capture—a cue validity effect and an N2pc effect—only for singleton cues that contained the target-defining feature. This pattern persisted even when we increased the salience of the singleton box (Experiments 2 and 3). Irrelevant colour single...
Starting Page	682
Ending Page	727
Page Count	46
File Format	PDF HTM / HTML
DOI	10.1080/13506280903000040
Volume Number	18
Alternate Webpage(s)	http://people.oregonstate.edu/~lienm/LienRuthruffCornett2010.pdf
Alternate Webpage(s)	https://doi.org/10.1080/13506280903000040
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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