The effect of rTMS on auditory hallucinations: Clues from an EEG-rTMS study

Remko Van Lutterveld, Sanne Koops, Dennis J.L.G. Schutter, Ellen Geertsema, Cornelis J. Stam, René S. Kahn, Iris E.C. Sommer

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Objctive: Repetitive transcranial magnetic stimulation (rTMS) to the temporoparietal region has been proposed as a therapeutic option for auditory verbal hallucinations (AVH). However, most large randomized controlled trials failed to demonstrate a superior effect of rTMS treatment as compared to sham. Previous studies applied daily rTMS sessions for one or more weeks to summate its effects. However, the effect of a single rTMS treatment on AVH-severity has never been studied, making it unclear if there is an initial effect that could be increased by repeated treatment. Methods: In three separate sessions, twenty-four patients with a psychotic disorder received 1-Hz rTMS to the left temporoparietal cortex, its right-sided homologue or a centro-occipital control site. Severity of AVH was assessed before and after each rTMS session and resting-state EEGs were recorded to investigate the neuronal effects of rTMS. Results: Stimulation of the temporoparietal cortices was not more effective in reducing AVH-severity than control-site stimulation. In addition, EEG-related power and connectivity measures were not affected differently across stimulation sites and changes in neuronal activity did not correlate with changes in AVH-severity. Conclusions: These results may suggest a placebo effect of a single session of 1-Hz rTMS treatment on AVH-severity.

Original languageEnglish
Pages (from-to)174-179
Number of pages6
JournalSchizophrenia Research
Volume137
Issue number1-3
DOIs
StatePublished - May 2012
Externally publishedYes

Keywords

  • EEG
  • Graph analysis
  • Hallucinations
  • Placebo
  • Schizophrenia
  • TMS

Fingerprint

Dive into the research topics of 'The effect of rTMS on auditory hallucinations: Clues from an EEG-rTMS study'. Together they form a unique fingerprint.

Cite this