Abnormal effective connectivity in migraine with aura under photic stimulation

Details Abnormal effective connectivity in migraine with aura under photic stimulation Abnormal effective connectivity in migraine with aura under photic stimulation

2011-04-13

arxiv.org/abs/1104.2532v2

Biology

Quantitative Biology

Neurons and Cognition

4 pages, 6 figures

Scientific paper

Migraine patients with aura show a peculiar pattern of visual reactivity compared with those of migraine patients without aura: an increased effective connectivity, connected to a reduced synchronization among EEG channels, for frequencies in the beta band. The effective connectivity is evaluated in terms of the Granger causality. This anomalous response to visual stimuli may play a crucial role in the progression of spreading depression and clinical evidences of aura symptoms.

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