Standard Standard

Dimensionally Specific Capture of Attention: Implications for Saliency Computation. / Burnett, Katherine; d'Avossa, Giovanni; Sapir, Ayelet.

In: Vision, Vol. 2, No. 1, 17.02.2018.

Research output: Contribution to journalArticle

HarvardHarvard

APA

CBE

MLA

VancouverVancouver

Author

RIS

TY - JOUR

T1 - Dimensionally Specific Capture of Attention: Implications for Saliency Computation

AU - Burnett, Katherine

AU - d'Avossa, Giovanni

AU - Sapir, Ayelet

PY - 2018/2/17

Y1 - 2018/2/17

N2 - Observers automatically orient to a sudden change in the environment. This is demonstrated experimentally using exogenous cues, which prioritize the analysis of subsequent targets appearing nearby. This effect has been attributed to the computation of saliency, obtained by combining features specific signals, which then feed back to drive attention to the salient location. An alternative possibility is that cueing directly effects target-evoked sensory responses in a feed-forward manner. We examined the effects of luminance and equiluminant color cues in a dual task paradigm, which required both a motion and a color discrimination. Equiluminant color cues improved color discrimination more than luminance cues, but luminance cues improved motion discrimination more than equiluminant color cues. This suggests that the effects of exogenous cues are dimensionally specific and may not depend entirely on the computation of a dimension general saliency signal.

AB - Observers automatically orient to a sudden change in the environment. This is demonstrated experimentally using exogenous cues, which prioritize the analysis of subsequent targets appearing nearby. This effect has been attributed to the computation of saliency, obtained by combining features specific signals, which then feed back to drive attention to the salient location. An alternative possibility is that cueing directly effects target-evoked sensory responses in a feed-forward manner. We examined the effects of luminance and equiluminant color cues in a dual task paradigm, which required both a motion and a color discrimination. Equiluminant color cues improved color discrimination more than luminance cues, but luminance cues improved motion discrimination more than equiluminant color cues. This suggests that the effects of exogenous cues are dimensionally specific and may not depend entirely on the computation of a dimension general saliency signal.

KW - Attention

KW - exogenous cuing

KW - sailency signal

KW - Luminance

KW - Motion discrimination

KW - color discrimination

U2 - 10.3390/vision2010009

DO - 10.3390/vision2010009

M3 - Article

VL - 2

JO - Vision

JF - Vision

SN - 0972-2629

IS - 1

ER -