Electrophysiological correlates of direct selection by color

Vierck, Esther; Miller, Jeff

doi:10.1111/j.1469-8986.2008.00650.x

Cited by 10 publications

(20 citation statements)

References 41 publications

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“…This had an influence in behavioral measures obtained in an orthogonal task, as RT to valid (attended) trials were faster than to invalid (unattended) trials. These behavioral results are in line with previous findings on attention to simple attributes (Griffin et al 2001;Krauzlis and Adler 2001;Vierck and Miller 2008;Vossel et al 2009), categories (Aranda et al 2010a;Esterman and Yantis 2010;Puri et al 2009), and idiosyncratic expectations about well-known stimuli (Aranda et al 2010b;faces vs. houses, Faulkner et al 2002;Puri and Wojciulik 2008). Cue validity had an equivalent effect on the responses to the famous and unfamiliar faces, which might have been taken as evidence that the effect was comparable for the famous and unfamiliar items.…”

Section: Discussionsupporting

confidence: 91%

Attention to individual identities modulates face processing

et al. 2015

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The ability of attention to apply in a flexible manner to several types of information at various stages of processing has been studied extensively. However, the susceptibility of these effects to the nature of the idiosyncratic items being attended is less understood. In the current study, we used symbolic cues to orient the attention of participants to the subsequent appearance of the face of a famous person (the former king of Spain) or an unfamiliar face. These were matched in perceptual characteristics. Behavioral effects showed that face-specific attention optimized response speed in an orthogonal task when the target matched the cue (valid trials) compared to when it did not (invalid trials). According to topographical analyses of the electrophysiological data, the famous and unfamiliar faces engaged dissociable brain circuits in two different temporal windows, from 144 to 300 ms after target processing, and at a later 456-492 ms epoch. In addition, orienting attention to specific faces modulated the perceptual stages reflected in the P1 and N170 potentials but with a different laterality pattern that depended on the familiarity of the faces. Whereas only attention to the famous face enhanced the P1 potential at left posterior electrodes, with no corresponding effect for the unfamiliar face at this stage, the N170 was modulated at left posterior sites for the famous item and at right homologous electrodes for the unfamiliar face. Intermediate processing stages, previously linked to facial identity processing indexed by the P2 and N2 potentials, reflected item familiarity but were not affected by the cueing manipulation. At the P3 level, attention influenced again item processing but did so in an equivalent manner for the famous and unfamiliar face. Our results, showing that identity-specific attention modulates perceptual stages of facial processing at different locations depending on idiosyncratic stimulus familiarity, may inform comparison of studies employing items with different degrees of novelty.

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Section: Discussionsupporting

confidence: 91%

Attention to individual identities modulates face processing

et al. 2015

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“…The preparatory state triggered by the symbolic cue can be referred to various dimensions of the upcoming stimulus, such as its spatial location, temporal occurrence, color, direction of motion, or even the semantic meaning of linguistic stimuli. This preparatory state or expectation is known to optimize the subsequent processing of the target (e.g., Correa, Lupiáñez, Madrid, & Tudela, 2006;Griffin, Miniussi, & Nobre, 2001;Krauzlis & Adler, 2001;Ruz & Nobre, 2008;Vierck & Miller, 2008;Vossel, Weidner, Thiel, & Fink, 2009), probably by providing a competitive bias that favors task-relevant representations over competing representations (Bar, 2003;Stokes, Thompson, Nobre, & Duncan, 2009). …”

Section: Methodsmentioning

confidence: 99%

“…Previous research has shown that devoting attention to general stimulus attributes can optimize target processing regardless of stimulus type (Aranda et al, 2010;Esterman & Yantis, 2010;Griffin et al, 2001;Krauzlis & Adler, 2001;Puri et al, 2009;Ruz & Nobre, 2008;Vierck & Miller, 2008;Vossel et al, 2009). This could have led one to expect validity effects for nonself stimuli in the present paradigm.…”

Section: Familiar Facementioning

confidence: 99%

Focusing on the bodily self: The influence of endogenous attention on visual body processing

Aranda

Ruz

Tudela

et al. 2010

Attention, Perception & Psychophysics

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The present study explores whether endogenous attention can modulate body perception. A modified version of the Posner paradigm was used to direct participants' attention toward the appearance of distinct body images, which differed only in detailed idiosyncratic features: one's own and another person's hands. Hand stimuli were preceded by symbolic cues that predicted their identity with high probability, which made it possible to compare the processing of expected (valid) and unexpected (invalid) targets. Results revealed that endogenous attention influenced the processing of participants' own hands by speeding participants' responses to valid in contrast to invalid trials. Crucially, no validity effect was found for the hands of another person. These findings r cannot be explained in terms of perceptual familiarity, since an optimization of the processing for both familiar and unfamiliar faces by symbolic cues was observed. In light of these results, it is suggested that participants are able to anticipate particular stimuli within the same perceptual category as long as these stimuli appear to are able to anticipate particular stimuli within the same perceptual category as long as these stimuli appear to be remarkably distinct to them, which is probably the case for particular faces and their own bodies, in contrast to other people's bodies.

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“…The color cue in the invalid condition should lead to the selection of the distractor letter in the cued color, if participants used the color cue to help them find the target. Thus, we expected to see ERPs in the invalid cue condition that were initially similar to those observed for target processing by Vierck and Miller (2008). But processing of the distractor letter should terminate as soon as the letter is identified as a distractor.…”

Section: Methodsmentioning

confidence: 87%

“…Color as used in this experiment was only additional information; it was not strictly needed to fulfill the task requirements because only one target letter appeared in each RSVP sequence. Vierck and Miller (2008) reported effects of validity at occipital recording sites in the form of a broad slow negativity (BSN) and a positivity around 240 ms at parietal and central recording sites, so the current studies will focus only on these ERPs. Although P300 modulation was also expected, we limited the analysis to earlier potentials because these are of main interest.…”

Section: Methodsmentioning

confidence: 99%

Distraction by color and its electrophysiological correlates

Vierck

Miller

2009

Psychophysiology

Self Cite

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We used the effects of colored distractors on ERPs to assess the psychophysiological consequences of selection by color. In Experiment 1 participants searched a rapid serial visual presentation (RSVP) sequence for a prespecified target letter that usually appeared in a cued color. ERPs elicited by cued-color distractors were similar to those elicited by targets, indicating relatively complete distractor processing. In Experiment 2 one letter in the RSVP sequence was framed by an irrelevant distractor probe in either the cued color or an uncued color. Such distractor probes elicited a P1, N1, or P2 sequence that depended on their color. In addition, probes presented shortly before the target tended to suppress the ERP components associated with target processing, especially for probes in the cued color. These observed variations in ERPs depending on the distractor's type and its distance from the target help to reveal the time course and mechanisms of selection by color.

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Electrophysiological correlates of direct selection by color

Cited by 10 publications

References 41 publications

Attention to individual identities modulates face processing

Attention to individual identities modulates face processing

Focusing on the bodily self: The influence of endogenous attention on visual body processing

Distraction by color and its electrophysiological correlates

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