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Direct linkFujiwara, Takeo – Journal of Autism and Developmental Disorders, 2014
The association between family socioeconomic status (SES) and the suspected autism spectrum disorder (ASD) status of 18-month-old toddlers was investigated using a population-based sample in Japan, which has a universal healthcare system and a mandatory health checkup system for toddlers. Questionnaires including SES measurements and modified…
Descriptors: Socioeconomic Status, Risk, Foreign Countries, Toddlers
Tsuchiya, Kenji J.; Matsumoto, Kaori; Yagi, Atsuko; Inada, Naoko; Kuroda, Miho; Inokuchi, Eiko; Koyama, Tomonori; Kamio, Yoko; Tsujii, Masatsugu; Sakai, Saeko; Mohri, Ikuko; Taniike, Masako; Iwanaga, Ryoichiro; Ogasahara, Kei; Miyachi, Taishi; Nakajima, Shunji; Tani, Iori; Ohnishi, Masafumi; Inoue, Masahiko; Nomura, Kazuyo; Hagiwara, Taku; Uchiyama, Tokio; Ichikawa, Hironobu; Kobayashi, Shuji; Miyamoto, Ken; Nakamura, Kazuhiko; Suzuki, Katsuaki; Mori, Norio; Takei, Nori – Journal of Autism and Developmental Disorders, 2013
To examine the inter-rater reliability of Autism Diagnostic Interview-Revised, Japanese Version (ADI-R-JV), the authors recruited 51 individuals aged 3-19 years, interviewed by two independent raters. Subsequently, to assess the discriminant and diagnostic validity of ADI-R-JV, the authors investigated 317 individuals aged 2-19 years, who were…
Descriptors: Test Validity, Autism, Correlation, Clinical Diagnosis
Koyama, Tomonori; Kamio, Yoko; Inada, Naoko; Kurita, Hiroshi – Journal of Autism and Developmental Disorders, 2009
Using the Japanese version of the Wechsler Intelligence Scale for Children-Third Edition (WISC-III), 26 girls with high-functioning (IQ greater than or equal to 70) pervasive developmental disorders (HFPDD) (mean age, 8.2 years) were compared with 116 boys with HFPDD (mean age, 9.0 years). Compared with the boys, the girls scored significantly…
Descriptors: Intelligence Quotient, Females, Pervasive Developmental Disorders, Intelligence Tests
Fukumoto, Aya; Hashimoto, Toshiaki; Ito, Hiromichi; Nishimura, Mio; Tsuda, Yoshimi; Miyazaki, Masahito; Mori, Kenji; Arisawa, Kokichi; Kagami, Shoji – Journal of Autism and Developmental Disorders, 2008
This study analyzed the increase in head circumference (HC) of 85 autistic infants (64 boys and 21 girls) during their first year of life. The data were collected from their "mother-and-baby" notebooks. This notebook is a medical record of the baby's growth and development delivered to the parents of all babies born in Japan. This is a…
Descriptors: Body Weight, Autism, Infants, Foreign Countries
Uchiyama, Tokio; Kurosawa, Michiko; Inaba, Yutaka – Journal of Autism and Developmental Disorders, 2007
It has been suggested that the measles, mumps, and rubella vaccine (MMR) is a cause of regressive autism. As MMR was used in Japan only between 1989 and 1993, this time period affords a natural experiment to examine this hypothesis. Data on 904 patients with autism spectrum disorders (ASD) were analyzed. During the period of MMR usage no…
Descriptors: Foreign Countries, Patients, Incidence, Autism
Wakabayashi, Akio; Baron-Cohen, Simon; Uchiyama, Tokio; Yoshida, Yuko; Tojo, Yoshikuni; Kuroda, Miho; Wheelwright, Sally – Journal of Autism and Developmental Disorders, 2007
In the current study, the child AQ was administered in Japan, to examine whether the UK results for reliability and validity generalize to a different culture. Assessment groups were: Group 1: n = 81 children with Asperger Syndrome (AS) or high-functioning autism (HFA); Group 2: n = 22 children diagnosed PDD-NOS with average IQ; and Group 3: n =…
Descriptors: Foreign Countries, Asperger Syndrome, Pervasive Developmental Disorders, Autism
Wakabayashi, Akio; Baron-Cohen, Simon; Wheelwright, Sally; Tojo, Yoshikuni – Journal of Autism and Developmental Disorders, 2006
The AQ (Autism-Spectrum Quotient) is a self-administered instrument for measuring the degree to which an adult with normal intelligence has the traits associated with the autistic spectrum. The AQ was administered in Japan to test whether the UK results would generalize to a very different culture. Three groups of subjects, adults with AS or HFA…
Descriptors: Foreign Countries, Autism, Measurement Techniques, Adults
Koyama, Tomonori; Tachimori, Hisateru; Osada, Hirokazu; Kurita, Hiroshi – Journal of Autism and Developmental Disorders, 2006
Age- and IQ-balanced 27 children with high-functioning (IQ greater than or equal to 70) pervasive developmental disorder not otherwise specified (HPDDNOS) and 27 children with attention-deficit/hyperactivity disorder (ADHD) were compared on the Japanese version of Wechsler Intelligence Scale for Children Third Edition (WISC-III) and the Childhood…
Descriptors: Cognitive Processes, Symptoms (Individual Disorders), Pervasive Developmental Disorders, Attention Deficit Disorders
Kunihira, Yura; Senju, Atsushi; Dairoku, Hitoshi; Wakabayashi, Akio; Hasegawa, Toshikazu – Journal of Autism and Developmental Disorders, 2006
We explored the relationships between "autistic" traits as measured by the AQ (Autism-Spectrum Quotient; Baron-Cohen et al., J. Autism Develop. Disord. (2001b) 31 5) and various personality traits or cognitive ability, which usually coincide with autistic symptoms, for general populations. Results showed the AQ was associated with…
Descriptors: Personality Traits, Autism, Cognitive Ability, Symptoms (Individual Disorders)
Sugie, Yoko; Sugie, Hideo; Fukuda,Tokiko; Ito, Masataka; Sasada, Yumiko; Nakabayashi, Mutsumi; Fukashiro, Kazunobu; Ohzeki, Takehiko – Journal of Autism and Developmental Disorders, 2005
We studied the correlation between response to fluvoxamine and serotonin transporter gene promoter region polymorphism (5-HTTLPR). Eighteen children with autistic disorder completed a 12-week double-blind, placebo-controlled, randomized crossover study of fluvoxamine. Behavioral assessments were obtained before and at 12 weeks of treatment.…
Descriptors: Autism, Correlation, Genetics, Children
Peer reviewedOhta, Masataka; And Others – Journal of Autism and Developmental Disorders, 1987
Analysis of diagnostic questionnaires completed by Japanese parents of 141 autistic children below the age of 12 found that the Japanese peak of abnormal social behavior, including autistic symptoms as reported by parents, was from the ages of 3 to 9 years as compared with the U.S. and European peak of 3 to 6 years. (Author/DB)
Descriptors: Autism, Behavior Problems, Children, Cultural Differences
Peer reviewedTanoue, Yoko; And Others – Journal of Autism and Developmental Disorders, 1988
Based on an observational study of children (ages 3-7) screened at a child guidance center in Japan, the prevalence rate of infantile autism in each one-year birth cohort (1972-1978) fluctuated in a four-year cycle which was closely correlated with the number of children hospitalized with lower respiratory tract diseases. (JW)
Descriptors: Autism, Clinical Diagnosis, Disease Incidence, Epidemiology
Peer reviewedAndo, Haruhiko; Yoshimura, Ikuko – Journal of Autism and Developmental Disorders, 1979
It was found that the autistic Ss' skills of comprehension and conversation improved significantly with age, and that speech improved somewhat as well, but that maladaptive behaviors other than hyperactivity did not change significantly with age. (Author/DLS)
Descriptors: Adjustment (to Environment), Age Differences, Autism, Communication Skills
Peer reviewedKezuka, Emiko – Journal of Autism and Developmental Disorders, 1997
A study investigated the role of touch in the use of facilitated communication with Japanese individuals with autism. Five experiments were conducted involving a "telepathy game" using a rod with an attached strain gauge. Results found the facilitator's contact controlled the motor responses of the subjects. (Author/CR)
Descriptors: Augmentative and Alternative Communication, Autism, Children, Communication Skills
Peer reviewedMiyahara, Motohide; Tsujii, Masatsugu; Hori, Miwako; Nakanishi, Kazunori; Kageyama, Hidenori; Sugiyama, Toshiro – Journal of Autism and Developmental Disorders, 1997
A study compared the motor coordination of 26 Japanese children (ages 6-15) with Asperger syndrome and 14 with learning disabilities using the Movement Assessment Battery for Children. Although no relationship was found between intellectual and motor function, both groups demonstrated motor delay. Children with autism had poorer ball skills. (CR)
Descriptors: Asperger Syndrome, Autism, Children, Early Adolescents
