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   2011, Vol. 19 Issue (8) : 1099-1103     DOI:
博士论坛 |
Spatiotemporal Dynamics for Emotional Processing
LUO Qian;PENG Dan-Ling;LIU Hong-Yan
(1 MEG Center, Department of Neurosurgery, University of Saint Louis School of Medicine, Saint Louis, MO 63104, USA)
(2 Unit on Affective Cognitive Neuroscience, National Institute of Mental Health, National Institute of Health, Bethesda, MD 20892, USA);
(3 Beijing Normal University, National key Laboratory of Cognitive Neuroscience and Learning, Beijing 100875, China)
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Abstract  This is a review of the research work on emotional processing that Dr. Qian Luo and colleagues have performed in recent years. Using behavioral and brain imaging techniques including fMRI and MEG, we have identified the neural mechanisms underlying privileged and automatic processing of emotional stimuli. These are revealed first by showing the neural basis for emotional processing at the subliminal level. Particularly enhanced activation in occipitotemporal cortex, amygdala and attention-related regions for emotional relative to neutral stimuli presented subliminally possibly underlie the biased processing of emotional stimuli even when stimuli are unseen. Second, we revealed the spatiotemporal dynamics and functional connectivity between regions involved in emotional processing. Particularly, we provided first direct evidence in humans that the quick automatic emotional response is based on the subcortical route from thalamus to amygdala. Moreover, the spatiotemporal development between regions sensory cortex, amygdala, frontal cortex were also identified. Thirdly we investigated the interaction between emotion and attention. We found that amygdala automaticity was a function of time: while early amygdala responding to emotional stimuli was unaffected by attention, later amygdala response, subsequent to frontoparietal cortex activity, was modulated by attentional load.
Keywords emotion      brain      fMRI      MEG      spatial      temporal     
Corresponding Authors: LUO Qian;PENG Dan-Ling   
Issue Date: 15 August 2011
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LUO Qian
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LUO Qian,PENG Dan-Ling,LIU Hong-Yan. Spatiotemporal Dynamics for Emotional Processing[J]. , 2011, 19(8): 1099-1103.
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