J Neurosci 2011 Dec;31(49):18026-35
Center for Mind and Brain, University of California Davis, Davis, California 95616, USA.
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J Neurosci 2005 May;25(18):4593-604
Department of Psychology, Washington University in St. Louis, St. Louis, Missouri 63130-4899, USA.
Attention can be voluntarily directed to a location or automatically summoned to a location by a salient stimulus. We compared the effects of voluntary and stimulus-driven shifts of spatial attention on the blood oxygenation level-dependent signal in humans, using a method that separated preparatory activity related to the initial shift of attention from the subsequent activity caused by target presentation. Voluntary shifts produced greater preparatory activity than stimulus-driven shifts in the frontal eye field (FEF) and intraparietal sulcus, core regions of the dorsal frontoparietal attention network, demonstrating their special role in the voluntary control of attention. Read More
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.
The most prevalent neurobiological theory of attentional control posits 2 distinct brain networks: The dorsal and ventral attention networks. The role of the dorsal attentional network in top-down attentional control is well established, but there is less evidence for the putative role of the ventral attentional network in initiating stimulus-driven reorienting. Here, we used functional magnetic resonance imaging and dynamic causal modeling (DCM) to test the role of the ventral and dorsal networks in attentional reorienting during instances of attentional capture by a target-colored distracter. Read More
Cereb Cortex 2010 Jul 21;20(7):1574-85. Epub 2009 Oct 21.
Fondazione Santa Lucia Istituto di Ricovero e Cura a Carattere Scientifico, 309-00179 Rome, Italy.
Voluntary orienting of visual attention is conventionally measured in tasks with predictive central cues followed by frequent valid targets at the cued location and by infrequent invalid targets at the uncued location. This implies that invalid targets entail both spatial reorienting of attention and breaching of the expected spatial congruency between cues and targets. Here, we used event-related functional magnetic resonance imaging (fMRI) to separate the neural correlates of the spatial and expectancy components of both endogenous orienting and stimulus-driven reorienting of attention. Read More
J Cogn Neurosci 2009 Nov;21(11):2100-13
INB-3 AG Kognitive Neurologie, Research Centre Jülich, Germany.
Endogenous control of visual search can influence search guidance at the level of a supradimensional topographic saliency map [Wolfe, J. M. Guided Search 2. Read More