Modulation of Conflict Processing by Theta-Range tACS over the Dorsolateral Prefrontal Cortex
Joint Authors
Lehr, Albert
Henneberg, Niklas
Nigam, Tarana
Paulus, Walter
Antal, Andrea
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-08
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Behavioral response conflict arises in the color-word Stroop task and triggers the cognitive control network.
Midfrontal theta-band oscillations correlate with adaptive control mechanisms during and after conflict resolution.
In order to prove causality, in two experiments, we applied transcranial alternating current stimulation (tACS) at 6 Hz to the dorsolateral prefrontal cortex (DLPFC) during Stroop task performance.
Sham stimulation served as a control in both experiments; 9.7 Hz tACS served as a nonharmonic alpha band control in the second experiment.
We employed generalized linear mixed models for analysis of behavioral data.
Accuracy remained unchanged by any type of active stimulation.
Over both experiments, the Stroop effect (response time difference between congruent and incongruent trials) was reduced by 6 Hz stimulation as compared to sham, mainly in trials without prior conflict adaptation.
Alpha tACS did not modify the Stroop effect.
Theta tACS can both reduce the Stroop effect and modulate adaptive mechanisms of the cognitive control network, suggesting midfrontal theta oscillations as causally involved in cognitive control.
American Psychological Association (APA)
Lehr, Albert& Henneberg, Niklas& Nigam, Tarana& Paulus, Walter& Antal, Andrea. 2019. Modulation of Conflict Processing by Theta-Range tACS over the Dorsolateral Prefrontal Cortex. Neural Plasticity،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1201535
Modern Language Association (MLA)
Lehr, Albert…[et al.]. Modulation of Conflict Processing by Theta-Range tACS over the Dorsolateral Prefrontal Cortex. Neural Plasticity No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1201535
American Medical Association (AMA)
Lehr, Albert& Henneberg, Niklas& Nigam, Tarana& Paulus, Walter& Antal, Andrea. Modulation of Conflict Processing by Theta-Range tACS over the Dorsolateral Prefrontal Cortex. Neural Plasticity. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1201535
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201535