Aiko Moriwaki

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OBJECTIVE Recent epidemiologic studies worldwide have documented a rise in prevalence rates for autism spectrum disorders (ASD). Broadening of diagnostic criteria for ASD may be a major contributor to the rise in prevalence, particularly if superimposed on an underlying continuous distribution of autistic traits. This study sought to determine the nature of(More)
The present study examined the relationship between common somatic symptoms and depression in samples of Japanese and American college students. Fifty Japanese and 44 American women completed the Beck Depression Inventory (BDI) and rated 56 somatic-distress items for 7 days. Japanese had higher levels of somatic distress than Americans. ANOVA of somatic(More)
BACKGROUND Although child mental health problems are among the most important worldwide issues, development of culturally acceptable mental health services to serve the clinical needs of children and their families is especially lacking in regions outside Europe and North America. The Strengths and Difficulties Questionnaire (SDQ), which was developed in(More)
Individuals of normal intelligence with autism spectrum disorders (ASD) tend to be diagnosed with ASD late in childhood or sometimes in adulthood, despite a persistent symptomatology. When such patients visit psychiatric clinics for co-occurring psychiatric symptoms, the diagnostic procedure can be challenging due to a lack of accurate developmental(More)
Recent studies suggest that many children with milder autism spectrum disorder (ASD) are undiagnosed, untreated, and being educated in mainstream classes without support and that school teachers might be the best persons to identify a child's social deviance. At present, only a few screening measures using teacher ratings of ASD have been validated. The aim(More)
Although delayed sleep timing causes many socio-psycho-biological problems such as sleep loss, excessive daytime sleepiness, obesity, and impaired daytime neurocognitive performance in adults, there are insufficient data showing the clinical significance of a ‘night owl lifestyle’ in early life. This study examined the association between habitual delayed(More)
We evaluated the utility of the Japanese version of the Checklist for Autism in Toddlers for predicting pervasive developmental disorders (PDD) among 2-year-old children in clinical settings. Confirmed diagnosis revealed that the pass rate on four items (social interest, proto-imperative pointing, proto-declarative pointing and joint-attention) was(More)
Epilepsy and autism spectrum disorder tend to co-occur in the population with intellectual disability. However, in the autistic population without intellectual disability, the prevalence of epilepsy is also much greater than in the general population. The special health needs in children having autism spectrum disorder without intellectual disability,(More)
What are the benefits of negative thinking and negative affect? Although previous studies in evolutionary psychology, social psychology, and clinical psychology have clarified the question, there has been no definitive study asking people directly about the perceived benefits. In the present study, 119 Japanese undergraduates were asked how they recognized(More)
Research findings that depressed Americans endorse more negative self-related adjectives than controls may be related to a shared self-enhancement cultural frame. This study examines the relationship between negative core self-descriptors and depressive symptoms in 79 Japanese and 50 American women. Americans had more positive self-descriptions and core(More)