Transcranial Magnetic Stimulation
Conditions
Keywords
sexual arousal
Brief summary
Hyper- and hyposexuality occur frequently in a variety of psychiatric disorders and are difficult to treat. While there is meta-analytic evidence for the significant effect of non-invasive brain stimulation on drug and food craving, no study has investigated the potential of this technique to modulate sexual behavior. The efficacy of a single session of high-frequency repetitive transcranial magnetic stimulation (rTMS) over the left or right dorsolateral prefrontal cortex (DLPFC) to reduce sexual arousal was tested against a sham stimulation. To test this hypothesis, we employed a randomized, double-blind, sham-controlled crossover study design. Nineteen healthy male participants received high-frequency rTMS over the left DLPFC, high-frequency rTMS over the right DLPFC and sham rTMS (each 10 Hz; 110% resting motor threshold; 60 trains with 50 pulses) in randomized and counterbalanced order with a one-week interval between stimulation sessions to avoid carryover effects. Participants were exposed to neutral and sexual cues before and after each intervention and rated their sexual arousal after each block of cue presentation.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* motor threshold below 55% * informed consent * male * 18-50 years * heterosexual * right handedness
Exclusion criteria
* contraindication for TMS * somatic or mental illnesses * intake of psychoactive drugs * left handedness * homo- or bisexual * paraphilia
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change of sexual arousal | immediately before and after the single session of rTMS | short 10-item version of the Affect and Arousal Scale, which captures perceived genital, autonomic and psychological sexual arousal as well as state sexual desire |