Hum Brain Mapp 2014 Jul 5;35(7):3036-51. Epub 2013 Dec 5.
Department of Psychiatry, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
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J Neurosci 2015 Aug;35(32):11445-57
Max Planck Institute for Biological Cybernetics, 72076 Tübingen, Germany, Computational Neuroscience and Cognitive Robotics Centre, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Unlabelled: Adaptive behavior relies on combining bottom-up sensory inputs with top-down control signals to guide responses in line with current goals and task demands. Over the past decade, accumulating evidence has suggested that the dorsal and ventral frontoparietal attentional systems are recruited interactively in this process. This fMRI study used concurrent transcranial magnetic stimulation (TMS) as a causal perturbation approach to investigate the interactions between dorsal and ventral attentional systems and sensory processing areas. Read More
Hum Brain Mapp 2015 Dec 29;36(12):5233-51. Epub 2015 Sep 29.
Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing, China.
Focusing attention on a target creates a center-surround inhibition such that distractors located close to the target do not capture attention. Recent research showed that a distractor can break through this surround inhibition when associated with reward. However, the brain basis for this reward-based attention is unclear. Read More
Brain Res 2011 Apr 2;1383:218-29. Epub 2011 Feb 2.
Department of Neurology and Centre for Advanced Imaging, Otto-von-Guericke-University, Leipziger Str. 44, 39120 Magdeburg, Germany.
Central to the organization of behavior is the ability to represent the magnitude of a prospective reward and the costs related to obtaining it. Therein, reward-related neural activations are discounted in dependence of the effort required to resolve a given task. Varying attentional demands of the task might however affect reward-related neural activations. 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