Electrophysiological neuroimaging: cortical correlates of alpha rhythm modulation.
Eyes-open and eyes-closed are two widely accepted resting conditions in neuroimaging study. When alternating between the two conditions, electroencephalogram (EEG) studies have reported the modulation of alpha band (8-12 Hz) oscillation. Functional magnetic resonance imaging (fMRI) studies have found modulation of blood-oxygen-level dependent (BOLD) response. The neuronal correlates of the two modulations are not well understood. In the present study, we conducted an eyes-open-eyes-closed human experiment with simultaneous EEG and fMRI recordings. We investigated the spatial and temporal correlations between the alpha modulation and BOLD response. Besides the neural network generating the eyes-open-eyes-closed-task-induced modulation, we further examined other neural networks involved in the task. Their spatial and temporal relationship with the alpha modulation was investigated.
Yang
Lin
L
Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455 USA. yangx726@umn.edu
Liu
Zhongming
Z
Rios
Cristina
C
Yuan
Han
H
He
Bin
B
D000513:Alpha Rhythm; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D003463:Cues; D004569:Electroencephalography / Q000379:methods*; D004594:Electrophysiology / Q000379:methods*; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D007700:Kinetics; D008279:Magnetic Resonance Imaging / Q000379:methods; D009415:Nerve Net / Q000502:physiology; D009799:Ocular Physiological Phenomena; D010100:Oxygen / Q000097:blood; D012016:Reference Values; D014785:Vision, Ocular / Q000502:physiology
D010100:Oxygen