Repetitive transcranial magnetic stimulation (rTMS) has been used as an investigative and therapeutic tool in neuropsychiatry and is advocated as a therapy for the treatment of psychiatric disorders, particularly adult depression. The therapeutic efficacy of current antidepressants applied to children or adolescents is unsatisfactory; thus innovative treatments such as rTMS are in demand. Large-scale clinical studies are required to determine the safety of rTMS for this age group. The present case report describes a 15-year-old female with depression who had seizure and hypomania during the first session of rTMS concomitant to sertraline 100 mg/day orally. The patient continued on this regimen of sertraline therapy but rTMS was not repeated. Subsequent electroencephalogram (EEG) examination detected no abnormalities and no longterm complications were observed. We suggest that rTMS should be used cautiously to treat adolescents with depressive disorders, particularly when used concomitant to antidepressant treatment.
The underlying neurobiological factors involved in sexual orientation are largely unknown. This study investigated whether neural circuits or different cognitive processes accounted for differences in brain activation in 14 heterosexual and 14 homosexual males. Brain scans were undertaken in each subject using functional magnetic resonance imaging while they viewed different sexual stimuli, i.e. heterosexual couple stimuli (HCS), gay couple stimuli (GCS), lesbian couple stimuli (LCS) and neutral stimuli (NS). Ratings of sexual attractiveness of the stimuli were assessed. Subjective sexual arousal was induced by HCS and GCS in heterosexual and homosexual men, respectively. Sexual disgust was induced by GCS and LCS in heterosexual and homosexual men, respectively. Compared with viewing NS, viewing sexual stimuli induced significantly different brain activations, most of which had the characteristics of cognitive processes. These observations suggest that different cognitive patterns may be the major cause of different subjective responses to sexual stimuli between heterosexual and homosexual men.
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