Ghent University Academic Bibliography

Advanced

Determinants of global color-based selection in human visual cortex

Mandy V Bartsch, Nico Böhler UGent, Christian M Stoppel, Christian Merkel, Hans-Jochen Heinze, Mircea A Schoenfeld and Jens-Max Hopf (2015) CEREBRAL CORTEX. 25(9). p.2828-2841
abstract
Feature attention operates in a spatially global way, with attended feature values being prioritized for selection outside the focus of attention. Accounts of global feature attention have emphasized feature competition as a determining factor. Here, we use magnetoencephalographic recordings in humans to test whether competition is critical for global feature selection to arise. Subjects performed a color/shape discrimination task in one visual field (VF), while irrelevant color probes were presented in the other unattended VF. Global effects of color attention were assessed by analyzing the response to the probe as a function of whether or not the probe's color was a target-defining color. We find that global color selection involves a sequence of modulations in extrastriate cortex, with an initial phase in higher tier areas (lateral occipital complex) followed by a later phase in lower tier retinotopic areas (V3/V4). Importantly, these modulations appeared with and without color competition in the focus of attention. Moreover, early parts of the modulation emerged for a task-relevant color not even present in the focus of attention. All modulations, however, were eliminated during simple onset-detection of the colored target. These results indicate that global color-based attention depends on target discrimination independent of feature competition in the focus of attention.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
MACAQUE AREA V4, SPATIAL ATTENTION, INFERIOR TEMPORAL CORTEX, FEATURE-BASED ATTENTION, NEURAL MECHANISMS, OCCIPITAL CORTEX, CORTICAL AREAS, FIELD MAPS, OBJECT, RESPONSES, attention, color, human, MEG, visual
journal title
CEREBRAL CORTEX
volume
25
issue
9
pages
2828 - 2841
Web of Science type
Article
Web of Science id
000361464000043
JCR category
NEUROSCIENCES
JCR impact factor
8.285 (2015)
JCR rank
17/256 (2015)
JCR quartile
1 (2015)
ISSN
1047-3211
DOI
10.1093/cercor/bhu078
project
The integrative neuroscience of behavioral control (Neuroscience)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4374644
handle
http://hdl.handle.net/1854/LU-4374644
alternative location
http://cercor.oxfordjournals.org/content/early/2014/04/25/cercor.bhu078.abstract
date created
2014-04-28 20:39:14
date last changed
2016-12-19 15:46:07
@article{4374644,
  abstract     = {Feature attention operates in a spatially global way, with attended feature values being prioritized for selection outside the focus of attention. Accounts of global feature attention have emphasized feature competition as a determining factor. Here, we use magnetoencephalographic recordings in humans to test whether competition is critical for global feature selection to arise. Subjects performed a color/shape discrimination task in one visual field (VF), while irrelevant color probes were presented in the other unattended VF. Global effects of color attention were assessed by analyzing the response to the probe as a function of whether or not the probe's color was a target-defining color. We find that global color selection involves a sequence of modulations in extrastriate cortex, with an initial phase in higher tier areas (lateral occipital complex) followed by a later phase in lower tier retinotopic areas (V3/V4). Importantly, these modulations appeared with and without color competition in the focus of attention. Moreover, early parts of the modulation emerged for a task-relevant color not even present in the focus of attention. All modulations, however, were eliminated during simple onset-detection of the colored target. These results indicate that global color-based attention depends on target discrimination independent of feature competition in the focus of attention.},
  author       = {Bartsch, Mandy V and B{\"o}hler, Nico and Stoppel, Christian M and Merkel, Christian and Heinze, Hans-Jochen and Schoenfeld, Mircea A and Hopf, Jens-Max},
  issn         = {1047-3211},
  journal      = {CEREBRAL CORTEX},
  keyword      = {MACAQUE AREA V4,SPATIAL ATTENTION,INFERIOR TEMPORAL CORTEX,FEATURE-BASED ATTENTION,NEURAL MECHANISMS,OCCIPITAL CORTEX,CORTICAL AREAS,FIELD MAPS,OBJECT,RESPONSES,attention,color,human,MEG,visual},
  language     = {eng},
  number       = {9},
  pages        = {2828--2841},
  title        = {Determinants of global color-based selection in human visual cortex},
  url          = {http://dx.doi.org/10.1093/cercor/bhu078},
  volume       = {25},
  year         = {2015},
}

Chicago
Bartsch, Mandy V, Nico Böhler, Christian M Stoppel, Christian Merkel, Hans-Jochen Heinze, Mircea A Schoenfeld, and Jens-Max Hopf. 2015. “Determinants of Global Color-based Selection in Human Visual Cortex.” Cerebral Cortex 25 (9): 2828–2841.
APA
Bartsch, M. V., Böhler, N., Stoppel, C. M., Merkel, C., Heinze, H.-J., Schoenfeld, M. A., & Hopf, J.-M. (2015). Determinants of global color-based selection in human visual cortex. CEREBRAL CORTEX, 25(9), 2828–2841.
Vancouver
1.
Bartsch MV, Böhler N, Stoppel CM, Merkel C, Heinze H-J, Schoenfeld MA, et al. Determinants of global color-based selection in human visual cortex. CEREBRAL CORTEX. 2015;25(9):2828–41.
MLA
Bartsch, Mandy V, Nico Böhler, Christian M Stoppel, et al. “Determinants of Global Color-based Selection in Human Visual Cortex.” CEREBRAL CORTEX 25.9 (2015): 2828–2841. Print.