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Distribution of attention modulates salience signals in early visual cortex

(2011) PLOS ONE. 6(5).
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Abstract
Previous research has shown that the extent to which people spread attention across the visual field plays a crucial role in visual selection and the occurrence of bottom-up driven attentional capture. Consistent with previous findings, we show that when attention was diffusely distributed across the visual field while searching for a shape singleton, an irrelevant salient color singleton captured attention. However, while using the very same displays and task, no capture was observed when observers initially focused their attention at the center of the display. Using event-related fMRI, we examined the modulation of retinotopic activity related to attentional capture in early visual areas. Because the sensory display characteristics were identical in both conditions, we were able to isolate the brain activity associated with exogenous attentional capture. The results show that spreading of attention leads to increased bottom-up exogenous capture and increased activity in visual area V3 but not in V2 and V1.
Keywords
COLOR SINGLETONS, STIMULUS-DRIVEN, CORTICAL AREAS, CAPTURE, SEARCH, VOLUNTARY, SPATIAL ATTENTION, FUNCTIONAL MRI, SELECTIVE ATTENTION, NEURAL MECHANISMS

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MLA
Mulckhuyse, Manon, et al. “Distribution of Attention Modulates Salience Signals in Early Visual Cortex.” PLOS ONE, edited by Hans P Op de Beeck, vol. 6, no. 5, 2011, doi:10.1371/journal.pone.0020379.
APA
Mulckhuyse, M., Belopolsky, A., Heslenfeld, D., Talsma, D., & Theeuwes, J. (2011). Distribution of attention modulates salience signals in early visual cortex. PLOS ONE, 6(5). https://doi.org/10.1371/journal.pone.0020379
Chicago author-date
Mulckhuyse, Manon, Artem Belopolsky, Dirk Heslenfeld, Durk Talsma, and Jan Theeuwes. 2011. “Distribution of Attention Modulates Salience Signals in Early Visual Cortex.” Edited by Hans P Op de Beeck. PLOS ONE 6 (5). https://doi.org/10.1371/journal.pone.0020379.
Chicago author-date (all authors)
Mulckhuyse, Manon, Artem Belopolsky, Dirk Heslenfeld, Durk Talsma, and Jan Theeuwes. 2011. “Distribution of Attention Modulates Salience Signals in Early Visual Cortex.” Ed by. Hans P Op de Beeck. PLOS ONE 6 (5). doi:10.1371/journal.pone.0020379.
Vancouver
1.
Mulckhuyse M, Belopolsky A, Heslenfeld D, Talsma D, Theeuwes J. Distribution of attention modulates salience signals in early visual cortex. Op de Beeck HP, editor. PLOS ONE. 2011;6(5).
IEEE
[1]
M. Mulckhuyse, A. Belopolsky, D. Heslenfeld, D. Talsma, and J. Theeuwes, “Distribution of attention modulates salience signals in early visual cortex,” PLOS ONE, vol. 6, no. 5, 2011.
@article{1252949,
  abstract     = {{Previous research has shown that the extent to which people spread attention across the visual field plays a crucial role in visual selection and the occurrence of bottom-up driven attentional capture. Consistent with previous findings, we show that when attention was diffusely distributed across the visual field while searching for a shape singleton, an irrelevant salient color singleton captured attention. However, while using the very same displays and task, no capture was observed when observers initially focused their attention at the center of the display. Using event-related fMRI, we examined the modulation of retinotopic activity related to attentional capture in early visual areas. Because the sensory display characteristics were identical in both conditions, we were able to isolate the brain activity associated with exogenous attentional capture. The results show that spreading of attention leads to increased bottom-up exogenous capture and increased activity in visual area V3 but not in V2 and V1.}},
  articleno    = {{e20379}},
  author       = {{Mulckhuyse, Manon and Belopolsky, Artem and Heslenfeld, Dirk and Talsma, Durk and Theeuwes, Jan}},
  editor       = {{Op de Beeck, Hans P}},
  issn         = {{1932-6203}},
  journal      = {{PLOS ONE}},
  keywords     = {{COLOR SINGLETONS,STIMULUS-DRIVEN,CORTICAL AREAS,CAPTURE,SEARCH,VOLUNTARY,SPATIAL ATTENTION,FUNCTIONAL MRI,SELECTIVE ATTENTION,NEURAL MECHANISMS}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{9}},
  title        = {{Distribution of attention modulates salience signals in early visual cortex}},
  url          = {{http://doi.org/10.1371/journal.pone.0020379}},
  volume       = {{6}},
  year         = {{2011}},
}

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