Transcranial alternating current stimulation enhances individual alpha activity in human EEG.

ABSTRACT: Non-invasive electrical stimulation of the human cortex by means of transcranial direct current stimulation (tDCS) has been instrumental in a number of important discoveries in the field of human cortical function and has become a well-established method for evaluating brain function in healthy human participants. Recently, transcranial alternating current stimulation (tACS) has been introduced to directly modulate the ongoing rhythmic brain activity by the application of oscillatory currents on the human scalp. Until now the efficiency of tACS in modulating rhythmic brain activity has been indicated only by inference from perceptual and behavioural consequences of electrical stimulation. No direct electrophysiological evidence of tACS has been reported. We delivered tACS over the occipita

SUBMITTER: Zaehle T 

PROVIDER: S-EPMC2967471 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature