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Spatial attention and the effects of frontoparietal alpha band stimulation
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نویسنده
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van schouwenburg m.r. ,zanto t.p. ,gazzaley a.
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منبع
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frontiers in human neuroscience - 2017 - دوره : 10 - شماره : 0
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چکیده
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A frontoparietal network has long been implicated in top-down control of attention. recent studies have suggested that this network might communicate through coherence in the alpha band. here we aimed to test the effect of coherent alpha (8-12 hz) stimulation on the frontoparietal network. to this end,we recorded behavioral performance and electroencephalography (eeg) data while participants were engaged in a spatial attention task. furthermore,participants received transcranial alternating current stimulation (tacs) over the right frontal and parietal cortex,which oscillated coherently in-phase within the alpha band. compared to a group of participants that received sham stimulation,we found that coherent frontoparietal alpha band stimulation altered a behavioral spatial attention bias. neurally,the groups showed hemisphericspecific differences in alpha coherence between the frontal and parietal-occipital cortex. these results provide preliminary evidence that alpha coherence in the frontoparietal network might play a role in top-down control of spatial attention. © 2017 van schouwenburg,zanto and gazzaley.
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کلیدواژه
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Alpha oscillations; Coherence; Connectivity; Transcranial alternating current stimulation; Visual attention
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آدرس
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departments of neurology,physiology and psychiatry,university of california,san francisco,ca,united states,neuroscape,university of california,san francisco,ca,united states,department of psychology,university of amsterdam,amsterdam, Netherlands, departments of neurology,physiology and psychiatry,university of california,san francisco,ca,united states,neuroscape,university of california,san francisco,ca, United States, departments of neurology,physiology and psychiatry,university of california,san francisco,ca,united states,neuroscape,university of california,san francisco,ca, United States
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Authors
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