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Modulation of creativity by transcranial direct current stimulation.

Elisabeth Hertenstein1, Elena Waibel2, Lukas Frase2

  • 1University Hospital of Psychiatry and Psychotherapy, University Psychiatric Services, Bern, Switzerland; Clinic for Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany.

Brain Stimulation
|June 25, 2019
PubMed
Summary

Transcranial direct current stimulation (tDCS) can enhance creativity by deactivating the left and activating the right prefrontal cortex. This non-invasive technique shows promise for creative professionals and individuals with mental health conditions.

Keywords:
CreativityElectroencephalographyFlexibilityFrontal cortexTranscranial direct current stimulation

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Brain Stimulation

Background:

  • Creativity research has conflicting findings on prefrontal cortex (PFC) activation patterns.
  • Some studies suggest right PFC activation and left PFC deactivation facilitate creativity.
  • Conversely, recent research indicates left frontal activation may improve creative performance.

Purpose of the Study:

  • To investigate the neural basis of creativity.
  • To explore methods for modulating creativity using transcranial direct current stimulation (tDCS).
  • To examine the effects of tDCS on prefrontal cortical activity and creative tasks.

Main Methods:

  • Ninety university students participated in the study.
  • Participants completed tasks assessing conceptual expansion (AUT), associative thinking (CRA), and set shifting (WCST).
  • tDCS was applied to the inferior frontal gyrus (IFG) with protocols including left cathodal/right anodal, reverse, and sham stimulation.

Main Results:

  • Bilateral left cathodal/right anodal stimulation led to superior performance on creativity tasks.
  • The reversed stimulation protocol resulted in inferior performance compared to sham.
  • Increased resting-state EEG beta power in the right frontal area correlated with enhanced creativity.

Conclusions:

  • Deactivating the left PFC and activating the right PFC via tDCS is associated with increased creativity.
  • These findings offer novel insights into modulating creative abilities.
  • Potential applications include tDCS for mental health patients and individuals in creative fields.