Prefrontal tDCS is unable to modulate mind wandering propensity or underlying functional or effective brain connectivity.

ABSTRACT: There is conflicting evidence over the ability to modulate mind-wandering propensity with anodal transcranial direct current stimulation (tDCS) over the left dorsolateral prefrontal cortex (prefrontal tDCS). Here, 20 participants received 20-min of active and sham prefrontal tDCS while in the MRI scanner, in two separate sessions (counterbalanced). In each session, they completed two runs of a sustained attention to response task (before and during tDCS), which included probes recording subjective responses of mind-wandering. We assessed the effects of tDCS on behavioural responses as well as functional and effective dynamics, via dynamic functional network connectivity (dFNC) and dynamic causal modelling analyses over regions of the default mode, salience and executive control networks. B

SUBMITTER: Coulborn S 

PROVIDER: S-EPMC9606118 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature