Cereb Cortex 2014 Dec 3;24(12):3131-41. Epub 2013 Jul 3.
Department of Psychology, Center for Mind and Brain, University of California, Davis, CA, USA and.
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Hum Brain Mapp 2013 Apr 15;34(4):869-77. Epub 2012 Mar 15.
Institute of Cognitive Neuroscience, National Central University, Jhongli, Taiwan.
The interaction between goal-directed and stimulus-driven attentional control allows humans to rapidly reorient to relevant objects outside the focus of attention--a phenomenon termed contingent reorienting. Neuroimaging studies have observed activation of the ventral and dorsal attentional networks, but specific involvement of each network remains unclear. The present study aimed to determine whether both networks are critical to the processes of top-down contingent reorienting. Read More
J Neurosci 2011 Dec;31(49):18026-35
Center for Mind and Brain, University of California Davis, Davis, California 95616, USA.
Contextual cues are predictive and provide behaviorally relevant information; they are not the main objective of the current task but can make behavior more efficient. Using fMRI, we investigated the brain networks involved in representing contextual information and translating it into an attentional control signal. Human subjects performed a visual search task for a low-contrast target accompanied by a single non-target that was either perceptually similar or more salient (i. Read More
J Neurosci 2012 Aug;32(31):10637-48
Wellcome Trust Centre for Neuroimaging, University College London, WC1N 3BG London, United Kingdom.
Attentional orientation to a spatial cue and reorientation-after invalid cueing-are mediated by two distinct networks in the human brain. A bilateral dorsal frontoparietal network, comprising the intraparietal sulcus (IPS) and the frontal eye fields (FEF), controls the voluntary deployment of attention and may modulate visual cortex in preparation for upcoming stimulation. In contrast, reorienting attention to invalidly cued targets engages a right-lateralized ventral frontoparietal network comprising the temporoparietal junction (TPJ) and ventral frontal cortex. Read More
Neuropsychologia 2015 Jul 24;74:50-62. Epub 2015 Feb 24.
The University of Queensland, School of Psychology, St Lucia, Queensland 4072, Australia; The University of Queensland, Queensland Brain Institute, St Lucia, 4072, Australia.
Setting attention for an elementary visual feature, such as color or motion, results in greater spatial attentional "capture" from items with target compared with distractor features. Thus, capture is contingent on feature-based control settings. Neuroimaging studies suggest that this contingent attentional capture involves interactions between dorsal and ventral frontoparietal networks. Read More