Psychometric properties of the Repetitive Behavior Scale-Revised for individuals with autism spectrum disorder in Japan / Naoko INADA in Research in Autism Spectrum Disorders, 15-16 (July 2015)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 15-16 (July 2015) . - p.60-68 Titre : Psychometric properties of the Repetitive Behavior Scale-Revised for individuals with autism spectrum disorder in Japan Type de document : Texte imprimé et/ou numérique Auteurs : Naoko INADA, Auteur ; Hiroyuki ITO, Auteur ; Kazuhiro YASUNAGA, Auteur ; Miho KURODA, Auteur ; Ryoichiro IWANAGA, Auteur ; Taku HAGIWARA, Auteur ; Iori TANI, Auteur ; Ryoji YUKIHIRO, Auteur ; Tokio UCHIYAMA, Auteur ; Kei OGASAHARA, Auteur ; Koichi HARA, Auteur ; Masahiko INOUE, Auteur ; Takashi MURAKAMI, Auteur ; Fumio SOMEKI, Auteur ; Kazuhiko NAKAMURA, Auteur ; Toshiro SUGIYAMA, Auteur ; Hiroyuki UCHIDA, Auteur ; Hironobu ICHIKAWA, Auteur ; Yuki KAWAKUBO, Auteur ; Yukiko KANO, Auteur ; Masatsugu TSUJII, Auteur Article en page(s) : p.60-68 Langues : Anglais (eng) Mots-clés : Restricted and repetitive behaviors  Autism spectrum disorder  Repetitive Behavior Scale-Revised Japanese Version  Reliability  Validity Index. décimale : PER Périodiques Résumé : Restricted and repetitive behaviors (RRBs) constitute a core symptom of autism spectrum disorder (ASD). The Repetitive Behavior Scale-Revised (RBS-R) is a widely used questionnaire administered by parents or caregivers to assess RRBs in individuals with ASD. This study evaluated the psychometric properties of the RBS-R Japanese Version (RBS-R-J). The ASD and non-ASD groups comprised 274 and 36 participants, respectively. We examined corrected item-total correlation, Cronbach's alpha, and RBS-R-J scores of different diagnostic groups, as well as correlations between RBS-R-J scores and intelligence quotient (IQ), autistic symptoms, adaptive/maladaptive functioning, aberrant behaviors, and sensory processing. All items showed moderate corrected item-total correlations. Cronbach's alpha coefficient was .93. We found significant differences in the mean RBS-R-J scores of the low-functioning ASD group and the intellectual disabilities group, and of low-functioning and high-functioning ASD groups. RBS-R-J scores negatively correlated with IQ and scores on the Sensory Profile (Japanese version) and Adaptive Behavior Composite of the Maladaptive Behavior Index of the Vineland Adaptive Behavior Scales-Second Edition (VABS-II; Japanese version), but positively correlated with scores on the peak and current symptoms subscales of the Pervasive Developmental Disorders Autism Society Japan Rating Scale, the VABS-II, and the Aberrant Behavior Checklist-Community (Japanese version). From these results, we conclude that RBS-R-J showed good reliability, diagnostic validity, and convergent validity, indicating that it is a reliable, valid instrument for use among ASD individuals in clinical and research settings. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.01.002 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261 [article] Psychometric properties of the Repetitive Behavior Scale-Revised for individuals with autism spectrum disorder in Japan [Texte imprimé et/ou numérique] / Naoko INADA, Auteur ; Hiroyuki ITO, Auteur ; Kazuhiro YASUNAGA, Auteur ; Miho KURODA, Auteur ; Ryoichiro IWANAGA, Auteur ; Taku HAGIWARA, Auteur ; Iori TANI, Auteur ; Ryoji YUKIHIRO, Auteur ; Tokio UCHIYAMA, Auteur ; Kei OGASAHARA, Auteur ; Koichi HARA, Auteur ; Masahiko INOUE, Auteur ; Takashi MURAKAMI, Auteur ; Fumio SOMEKI, Auteur ; Kazuhiko NAKAMURA, Auteur ; Toshiro SUGIYAMA, Auteur ; Hiroyuki UCHIDA, Auteur ; Hironobu ICHIKAWA, Auteur ; Yuki KAWAKUBO, Auteur ; Yukiko KANO, Auteur ; Masatsugu TSUJII, Auteur . - p.60-68. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 15-16 (July 2015) . - p.60-68 Mots-clés : Restricted and repetitive behaviors  Autism spectrum disorder  Repetitive Behavior Scale-Revised Japanese Version  Reliability  Validity Index. décimale : PER Périodiques Résumé : Restricted and repetitive behaviors (RRBs) constitute a core symptom of autism spectrum disorder (ASD). The Repetitive Behavior Scale-Revised (RBS-R) is a widely used questionnaire administered by parents or caregivers to assess RRBs in individuals with ASD. This study evaluated the psychometric properties of the RBS-R Japanese Version (RBS-R-J). The ASD and non-ASD groups comprised 274 and 36 participants, respectively. We examined corrected item-total correlation, Cronbach's alpha, and RBS-R-J scores of different diagnostic groups, as well as correlations between RBS-R-J scores and intelligence quotient (IQ), autistic symptoms, adaptive/maladaptive functioning, aberrant behaviors, and sensory processing. All items showed moderate corrected item-total correlations. Cronbach's alpha coefficient was .93. We found significant differences in the mean RBS-R-J scores of the low-functioning ASD group and the intellectual disabilities group, and of low-functioning and high-functioning ASD groups. RBS-R-J scores negatively correlated with IQ and scores on the Sensory Profile (Japanese version) and Adaptive Behavior Composite of the Maladaptive Behavior Index of the Vineland Adaptive Behavior Scales-Second Edition (VABS-II; Japanese version), but positively correlated with scores on the peak and current symptoms subscales of the Pervasive Developmental Disorders Autism Society Japan Rating Scale, the VABS-II, and the Aberrant Behavior Checklist-Community (Japanese version). From these results, we conclude that RBS-R-J showed good reliability, diagnostic validity, and convergent validity, indicating that it is a reliable, valid instrument for use among ASD individuals in clinical and research settings. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.01.002 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261

Task dependent prefrontal dysfunction in persons with Asperger's disorder investigated with multi-channel near-infrared spectroscopy / Akira IWANAMI in Research in Autism Spectrum Disorders, 5-3 (July-September 2011)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-3 (July-September 2011) . - p.1187-1193 Titre : Task dependent prefrontal dysfunction in persons with Asperger's disorder investigated with multi-channel near-infrared spectroscopy Type de document : Texte imprimé et/ou numérique Auteurs : Akira IWANAMI, Auteur ; Yuka OKAJIMA, Auteur ; Haruhisa OTA, Auteur ; Masayuki TANI, Auteur ; Takashi YAMADA, Auteur ; Ryuichiro HASHIMORO, Auteur ; Chieko KANAI, Auteur ; Hiromi WATANABE, Auteur ; Hidenori YAMASUE, Auteur ; Yuki KAWAKUBO, Auteur ; Nobumasa KATO, Auteur Année de publication : 2011 Article en page(s) : p.1187-1193 Langues : Anglais (eng) Mots-clés : Asperger's disorder  PDD  NIRS  Prefrontal dysfunction  Verbal fluency task Index. décimale : PER Périodiques Résumé : Dysfunction of the prefrontal cortex has been previously reported in individuals with Asperger's disorder. In the present study, we used multi-channel near-infrared spectroscopy (NIRS) to detect changes in the oxygenated hemoglobin concentration ([oxy-Hb]) during two verbal fluency tasks. The subjects were 20 individuals with Asperger's disorder and 18 age- and IQ-matched healthy controls. The relative [oxy-Hb] in the prefrontal cortex was measured during the category and letter fluency tasks. The mean total [oxy-Hb] during the category fluency task did not differ significantly between the groups; however, during the letter fluency task, the mean [oxy-Hb] in persons with Asperger's disorder was significantly lower than that in controls. These results suggested task-relevant or task-specific prefrontal dysfunction in persons with Asperger's disorder. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=119 [article] Task dependent prefrontal dysfunction in persons with Asperger's disorder investigated with multi-channel near-infrared spectroscopy [Texte imprimé et/ou numérique] / Akira IWANAMI, Auteur ; Yuka OKAJIMA, Auteur ; Haruhisa OTA, Auteur ; Masayuki TANI, Auteur ; Takashi YAMADA, Auteur ; Ryuichiro HASHIMORO, Auteur ; Chieko KANAI, Auteur ; Hiromi WATANABE, Auteur ; Hidenori YAMASUE, Auteur ; Yuki KAWAKUBO, Auteur ; Nobumasa KATO, Auteur . - 2011 . - p.1187-1193. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 5-3 (July-September 2011) . - p.1187-1193 Mots-clés : Asperger's disorder  PDD  NIRS  Prefrontal dysfunction  Verbal fluency task Index. décimale : PER Périodiques Résumé : Dysfunction of the prefrontal cortex has been previously reported in individuals with Asperger's disorder. In the present study, we used multi-channel near-infrared spectroscopy (NIRS) to detect changes in the oxygenated hemoglobin concentration ([oxy-Hb]) during two verbal fluency tasks. The subjects were 20 individuals with Asperger's disorder and 18 age- and IQ-matched healthy controls. The relative [oxy-Hb] in the prefrontal cortex was measured during the category and letter fluency tasks. The mean total [oxy-Hb] during the category fluency task did not differ significantly between the groups; however, during the letter fluency task, the mean [oxy-Hb] in persons with Asperger's disorder was significantly lower than that in controls. These results suggested task-relevant or task-specific prefrontal dysfunction in persons with Asperger's disorder. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=119

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