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Updated: May 25, 2026

Repetitive Transcranial Magnetic Stimulation to the Unilateral Hemisphere of Rat Brain
Published on: October 22, 2016
The effect of rTMS on auditory hallucinations: clues from an EEG-rTMS study
Remko van Lutterveld1, Sanne Koops, Dennis J L G Schutter
1Department of Psychiatry, University Medical Center, Utrecht, The Netherlands. R.vanlutterveld@umcutrecht.nl
Objective:
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.

