A double-blind HD-tDCS/EEG study examining right temporoparietal junction involvement in facial emotion processing

Peter H. Donaldson, Melissa Kirkovski, Nicole J. Rinehart, Peter G. Enticott

Research output: Contribution to journalArticleResearchpeer-review

22 Citations (Scopus)


Prior studies have demonstrated that aspects of social cognition can be modulated via temporoparietal junction (TPJ) transcranial direct current stimulation (tDCS). However, this technique lacks focality and electrophysiological effects or correlates are rarely examined. The present study investigated whether anodal and/or cathodal high-definition tDCS (HD-tDCS) would influence facial emotion processing performance relative to sham stimulation, and whether task performance changes were related to neurophysiological changes. Participants completed a facial emotion attribution tasks before and after rTPJ HD-tDCS, with event-related potentials (ERP) recorded during task performance. Anodal rTPJ HD-tDCS improved facial emotion processing performance for static depictions of fear (but not surprise). Stimulation condition influenced P300 latency, and also influenced the relationship between behavioural and electrophysiological (ERP) outcomes in several circumstances, findings which both support and challenge anodal-excitation/cathodal-inhibition accounts of tDCS effects. Results suggest that rTPJ anodal HD-tDCS can influence facial emotion recognition (i.e., affective mentalizing), and elucidate the nature and distribution of underlying neurophysiological processes. Stimulation effects, however, might depend on the intensity and salience/valence (negativity/threat) of the emotion, and these behavioural effects may not relate directly or simply to the ERPs assessed here.

Original languageEnglish
Pages (from-to)681-696
Number of pages16
JournalSocial Neuroscience
Issue number6
Publication statusPublished - 2 Nov 2019
Externally publishedYes


  • EEG
  • HD-tDCS
  • social cognition
  • temporoparietal junction
  • TPJ

Cite this