TY - JOUR
T1 - Resting-state modulation of alpha rhythms by interference with angular gyrus activity
AU - Capotosto, Paolo
AU - Babiloni, Claudio
AU - Romani, Gian Luca
AU - Corbetta, Maurizio
PY - 2014/1
Y1 - 2014/1
N2 - The default mode network is active during restful wakefulness and suppressed during goal-driven behavior. We hypothesize that inhibitory interference with spontaneous ongoing, that is, not task-driven, activity in the angular gyrus (AG), one of the core regions of the default mode network, will enhance the dominant idling EEG alpha rhythms observed in the resting state. Fifteen right-handed healthy adult volunteers underwent to this study. Compared with sham stimulation, magnetic stimulation (1 Hz for 1 min) over both left and right AG, but not over FEF or intraparietal sulcus, core regions of the dorsal attention network, enhanced the dominant alpha power density (8-10 Hz) in occipitoparietal cortex. Furthermore, right AG-rTMS enhanced intrahemispheric alpha coherence (8-10 Hz). These results suggest that AG plays a causal role in the modulation of dominant low-frequency alpha rhythms in the restingstate condition.
AB - The default mode network is active during restful wakefulness and suppressed during goal-driven behavior. We hypothesize that inhibitory interference with spontaneous ongoing, that is, not task-driven, activity in the angular gyrus (AG), one of the core regions of the default mode network, will enhance the dominant idling EEG alpha rhythms observed in the resting state. Fifteen right-handed healthy adult volunteers underwent to this study. Compared with sham stimulation, magnetic stimulation (1 Hz for 1 min) over both left and right AG, but not over FEF or intraparietal sulcus, core regions of the dorsal attention network, enhanced the dominant alpha power density (8-10 Hz) in occipitoparietal cortex. Furthermore, right AG-rTMS enhanced intrahemispheric alpha coherence (8-10 Hz). These results suggest that AG plays a causal role in the modulation of dominant low-frequency alpha rhythms in the restingstate condition.
UR - http://www.scopus.com/inward/record.url?scp=84888324311&partnerID=8YFLogxK
U2 - 10.1162/jocn_a_00460
DO - 10.1162/jocn_a_00460
M3 - Article
C2 - 23937690
AN - SCOPUS:84888324311
SN - 0898-929X
VL - 26
SP - 107
EP - 119
JO - Journal of Cognitive Neuroscience
JF - Journal of Cognitive Neuroscience
IS - 1
ER -