Osamu Takashio

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The Panic Disorder Severity Scale (PDSS) [Shear et al., 1997] is rapidly gaining world-wide acceptance as a standard global severity measure of panic disorder, however, its cross-cultural validity and reliability have not been reported yet. We developed the Japanese version of the PDSS and examined its factor structure, internal consistency and inter-rater(More)
In the present study, we investigated auditory event-related potentials in adults with Asperger disorder and normal controls using an auditory oddball task and a novelty oddball task. Task performance and the latencies of P300 evoked by both target and novel stimuli in the two tasks did not differ between the two groups. Analysis of variance revealed that(More)
We examined the relationships between the ERP measurements and concentrations of plasma monoamine metabolites in 20 healthy volunteers. Event-related potentials were recorded within the framework of two auditory paradigms, a standard oddball task and a novelty oddball task. The plasma concentrations of homovanillic acid (HVA, a metabolite of dopamine) and(More)
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