Assessment of olfactory detection thresholds in children with autism spectrum disorders using a pulse ejection system / Hirokazu KUMAZAKI in Molecular Autism, 7 (2016)  

Public ISBD [article]  inMolecular Autism > 7 (2016) . - 6p. Titre : Assessment of olfactory detection thresholds in children with autism spectrum disorders using a pulse ejection system Type de document : texte imprimé Auteurs : Hirokazu KUMAZAKI, Auteur ; Taro MURAMATSU, Auteur ; Takashi X. FUJISAWA, Auteur ; Masutomo MIYAO, Auteur ; Eri MATSUURA, Auteur ; Ken-ichi OKADA, Auteur ; Hirotaka KOSAKA, Auteur ; Akemi TOMODA, Auteur ; Masaru MIMURA, Auteur Article en page(s) : 6p. Langues : Anglais (eng) Mots-clés : Adolescent  Aerosols  Autism Spectrum Disorder/physiopathology/psychology  Caproates  Case-Control Studies  Child  Diagnostic Equipment  Equipment Design  Female  Humans  Hypesthesia/etiology/physiopathology/psychology  Male  Odorants  Olfactory Perception/physiology  Pentanols  Pulsatile Flow  Sensory Thresholds/physiology  Autism spectrum disorder  Laboratory-based studies  Olfaction  Olfactory detection threshold  Pulse ejection system Index. décimale : PER Périodiques Résumé : BACKGROUND: Atypical responsiveness to olfactory stimuli has been reported as the strongest predictor of social impairment in children with autism spectrum disorders (ASD). However, previous laboratory-based sensory psychophysical studies that have aimed to investigate olfactory sensitivity in children with ASD have produced inconsistent results. The methodology of these studies is limited by several factors, and more sophisticated approaches are required to produce consistent results. METHODS: We measured olfactory detection thresholds in children with ASD and typical development (TD) using a pulse ejection system-a newly developed methodology designed to resolve problems encountered in previous studies. The two odorants used as stimuli were isoamyl acetate and allyl caproate. RESULTS: Forty-three participants took part in this study: 23 (6 females, 17 males) children with ASD and 20 with TD (6 females, 14 males). Olfactory detection thresholds of children with ASD were significantly higher than those of TD children with both isoamyl acetate (2.85 +/- 0.28 vs 1.57 +/- 0.15; p < 0.001) and allyl caproate ( 3.30 +/- 0.23 vs 1.17 +/- 0.08; p < 0.001). CONCLUSIONS: We found impaired olfactory detection thresholds in children with ASD. Our results contribute to a better understanding of the olfactory abnormalities that children with ASD experience. Considering the role and effect that odors play in our daily lives, insensitivity to some odorants might have a tremendous impact on children with ASD. Future studies of olfactory processing in ASD may reveal important links between brain function, clinically relevant behavior, and treatment. En ligne : http://dx.doi.org/10.1186/s13229-016-0071-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328 [article] Assessment of olfactory detection thresholds in children with autism spectrum disorders using a pulse ejection system [texte imprimé] / Hirokazu KUMAZAKI, Auteur ; Taro MURAMATSU, Auteur ; Takashi X. FUJISAWA, Auteur ; Masutomo MIYAO, Auteur ; Eri MATSUURA, Auteur ; Ken-ichi OKADA, Auteur ; Hirotaka KOSAKA, Auteur ; Akemi TOMODA, Auteur ; Masaru MIMURA, Auteur . - 6p. Langues : Anglais (eng) in Molecular Autism > 7 (2016) . - 6p. Mots-clés : Adolescent  Aerosols  Autism Spectrum Disorder/physiopathology/psychology  Caproates  Case-Control Studies  Child  Diagnostic Equipment  Equipment Design  Female  Humans  Hypesthesia/etiology/physiopathology/psychology  Male  Odorants  Olfactory Perception/physiology  Pentanols  Pulsatile Flow  Sensory Thresholds/physiology  Autism spectrum disorder  Laboratory-based studies  Olfaction  Olfactory detection threshold  Pulse ejection system Index. décimale : PER Périodiques Résumé : BACKGROUND: Atypical responsiveness to olfactory stimuli has been reported as the strongest predictor of social impairment in children with autism spectrum disorders (ASD). However, previous laboratory-based sensory psychophysical studies that have aimed to investigate olfactory sensitivity in children with ASD have produced inconsistent results. The methodology of these studies is limited by several factors, and more sophisticated approaches are required to produce consistent results. METHODS: We measured olfactory detection thresholds in children with ASD and typical development (TD) using a pulse ejection system-a newly developed methodology designed to resolve problems encountered in previous studies. The two odorants used as stimuli were isoamyl acetate and allyl caproate. RESULTS: Forty-three participants took part in this study: 23 (6 females, 17 males) children with ASD and 20 with TD (6 females, 14 males). Olfactory detection thresholds of children with ASD were significantly higher than those of TD children with both isoamyl acetate (2.85 +/- 0.28 vs 1.57 +/- 0.15; p < 0.001) and allyl caproate ( 3.30 +/- 0.23 vs 1.17 +/- 0.08; p < 0.001). CONCLUSIONS: We found impaired olfactory detection thresholds in children with ASD. Our results contribute to a better understanding of the olfactory abnormalities that children with ASD experience. Considering the role and effect that odors play in our daily lives, insensitivity to some odorants might have a tremendous impact on children with ASD. Future studies of olfactory processing in ASD may reveal important links between brain function, clinically relevant behavior, and treatment. En ligne : http://dx.doi.org/10.1186/s13229-016-0071-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328

Brief Report: Evaluating the Utility of Varied Technological Agents to Elicit Social Attention from Children with Autism Spectrum Disorders / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 49-4 (April 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-4 (April 2019) . - p.1700-1708 Titre : Brief Report: Evaluating the Utility of Varied Technological Agents to Elicit Social Attention from Children with Autism Spectrum Disorders Type de document : texte imprimé Auteurs : Hirokazu KUMAZAKI, Auteur ; Zachary WARREN, Auteur ; Amy SWANSON, Auteur ; Yuichiro YOSHIKAWA, Auteur ; Yuki MATSUMOTO, Auteur ; Yuko YOSHIMURA, Auteur ; Jiro SHIMAYA, Auteur ; Hiroshi ISHIGURO, Auteur ; Nilanjan SARKAR, Auteur ; Joshua WADE, Auteur ; Masaru MIMURA, Auteur ; Yoshio MINABE, Auteur ; Mitsuru KIKUCHI, Auteur Article en page(s) : p.1700-1708 Langues : Anglais (eng) Mots-clés : Android robot  Autism spectrum disorders  Digital avatar  Robot  Technological agents Index. décimale : PER Périodiques Résumé : Technological agents could be effective tools to be used in interventions for enhancing social orienting for some young children with ASD. We examined response to social bids in preschool children with ASD and typical development (TD) at a very early age (i.e., around 3 years) using social prompts presented by technological agents of various forms and human comparisons. Children with ASD demonstrated less response overall to social bids compared to TD controls, across agents or human. They responded more often to a simple humanoid robot and the simple avatar compared to the human. These results support the potential utilization of specific robotic and technological agents for harnessing and potentially increasing motivation to socially-relevant behaviors in some young children with ASD. En ligne : https://dx.doi.org/10.1007/s10803-018-3841-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=388 [article] Brief Report: Evaluating the Utility of Varied Technological Agents to Elicit Social Attention from Children with Autism Spectrum Disorders [texte imprimé] / Hirokazu KUMAZAKI, Auteur ; Zachary WARREN, Auteur ; Amy SWANSON, Auteur ; Yuichiro YOSHIKAWA, Auteur ; Yuki MATSUMOTO, Auteur ; Yuko YOSHIMURA, Auteur ; Jiro SHIMAYA, Auteur ; Hiroshi ISHIGURO, Auteur ; Nilanjan SARKAR, Auteur ; Joshua WADE, Auteur ; Masaru MIMURA, Auteur ; Yoshio MINABE, Auteur ; Mitsuru KIKUCHI, Auteur . - p.1700-1708. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-4 (April 2019) . - p.1700-1708 Mots-clés : Android robot  Autism spectrum disorders  Digital avatar  Robot  Technological agents Index. décimale : PER Périodiques Résumé : Technological agents could be effective tools to be used in interventions for enhancing social orienting for some young children with ASD. We examined response to social bids in preschool children with ASD and typical development (TD) at a very early age (i.e., around 3 years) using social prompts presented by technological agents of various forms and human comparisons. Children with ASD demonstrated less response overall to social bids compared to TD controls, across agents or human. They responded more often to a simple humanoid robot and the simple avatar compared to the human. These results support the potential utilization of specific robotic and technological agents for harnessing and potentially increasing motivation to socially-relevant behaviors in some young children with ASD. En ligne : https://dx.doi.org/10.1007/s10803-018-3841-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=388

Brief Report: A Novel System to Evaluate Autism Spectrum Disorders Using Two Humanoid Robots / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 49-4 (April 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-4 (April 2019) . - p.1709-1716 Titre : Brief Report: A Novel System to Evaluate Autism Spectrum Disorders Using Two Humanoid Robots Type de document : texte imprimé Auteurs : Hirokazu KUMAZAKI, Auteur ; Taro MURAMATSU, Auteur ; Yuichiro YOSHIKAWA, Auteur ; Yuko YOSHIMURA, Auteur ; Takashi IKEDA, Auteur ; Chiaki HASEGAWA, Auteur ; Daisuke N. SAITO, Auteur ; Jiro SHIMAYA, Auteur ; Hiroshi ISHIGURO, Auteur ; Masaru MIMURA, Auteur ; Mitsuru KIKUCHI, Auteur Article en page(s) : p.1709-1716 Langues : Anglais (eng) Mots-clés : Ados  Autism spectrum disorders  Robot  Severity  Social communication  Typical development Index. décimale : PER Périodiques Résumé : We investigated the feasibility of our novel evaluation system for use with children with autism spectrum disorders (ASD). We prepared the experimental setting with two humanoid robots in reference to the birthday party scene in the Autism Diagnostic Observational Schedule (ADOS). We assessed the relationship between social communication ability measured in the ADOS condition (i.e., with a human clinician) and in a robotic condition for children with ASD. There were significant correlations between the social communication scores in the gold-standard ADOS condition and the robotic condition for children with ASD. The current work provides support for a unique application of a robotic system (i.e., two robot-mediated interaction) to evaluate the severity of autistic traits for children with ASD. En ligne : https://dx.doi.org/10.1007/s10803-018-3848-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=388 [article] Brief Report: A Novel System to Evaluate Autism Spectrum Disorders Using Two Humanoid Robots [texte imprimé] / Hirokazu KUMAZAKI, Auteur ; Taro MURAMATSU, Auteur ; Yuichiro YOSHIKAWA, Auteur ; Yuko YOSHIMURA, Auteur ; Takashi IKEDA, Auteur ; Chiaki HASEGAWA, Auteur ; Daisuke N. SAITO, Auteur ; Jiro SHIMAYA, Auteur ; Hiroshi ISHIGURO, Auteur ; Masaru MIMURA, Auteur ; Mitsuru KIKUCHI, Auteur . - p.1709-1716. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-4 (April 2019) . - p.1709-1716 Mots-clés : Ados  Autism spectrum disorders  Robot  Severity  Social communication  Typical development Index. décimale : PER Périodiques Résumé : We investigated the feasibility of our novel evaluation system for use with children with autism spectrum disorders (ASD). We prepared the experimental setting with two humanoid robots in reference to the birthday party scene in the Autism Diagnostic Observational Schedule (ADOS). We assessed the relationship between social communication ability measured in the ADOS condition (i.e., with a human clinician) and in a robotic condition for children with ASD. There were significant correlations between the social communication scores in the gold-standard ADOS condition and the robotic condition for children with ASD. The current work provides support for a unique application of a robotic system (i.e., two robot-mediated interaction) to evaluate the severity of autistic traits for children with ASD. En ligne : https://dx.doi.org/10.1007/s10803-018-3848-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=388

Brief Report: Odour Awareness in Young Children with Autism Spectrum Disorders / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 50-5 (May 2020)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 50-5 (May 2020) . - p.1809-1815 Titre : Brief Report: Odour Awareness in Young Children with Autism Spectrum Disorders Type de document : texte imprimé Auteurs : Hirokazu KUMAZAKI, Auteur ; Masako OKAMOTO, Auteur ; Yuko YOSHIMURA, Auteur ; Takashi IKEDA, Auteur ; Chiaki HASEGAWA, Auteur ; Daisuke N. SAITO, Auteur ; Ryoichiro IWANAGA, Auteur ; Sara TOMIYAMA, Auteur ; Kyung-Min AN, Auteur ; Yoshio MINABE, Auteur ; Mitsuru KIKUCHI, Auteur Article en page(s) : p.1809-1815 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Odour awareness  Olfactory  Self-report  Vabs ii Index. décimale : PER Périodiques Résumé : The elucidation of odour awareness in children with autism spectrum disorders (ASD) is important. We compared the odour awareness of young children with ASD with those of typical development (TD) children using the Children's Olfactory Behavior in Everyday Life (COBEL) questionnaire, which is a self-report measure that mainly assesses odour awareness. Forty-five young boys (aged 5-6 years), including 20 children with ASD and 25 TD children, participated in this study. The total COBEL score of the young children with ASD was lower than that of the TD children (p < 0.01). Moreover, the total COBEL score was significantly correlated with the total VABS II score (p < 0.05). Our results improve understanding of the odour awareness in children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-018-3710-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=422 [article] Brief Report: Odour Awareness in Young Children with Autism Spectrum Disorders [texte imprimé] / Hirokazu KUMAZAKI, Auteur ; Masako OKAMOTO, Auteur ; Yuko YOSHIMURA, Auteur ; Takashi IKEDA, Auteur ; Chiaki HASEGAWA, Auteur ; Daisuke N. SAITO, Auteur ; Ryoichiro IWANAGA, Auteur ; Sara TOMIYAMA, Auteur ; Kyung-Min AN, Auteur ; Yoshio MINABE, Auteur ; Mitsuru KIKUCHI, Auteur . - p.1809-1815. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 50-5 (May 2020) . - p.1809-1815 Mots-clés : Autism spectrum disorders  Odour awareness  Olfactory  Self-report  Vabs ii Index. décimale : PER Périodiques Résumé : The elucidation of odour awareness in children with autism spectrum disorders (ASD) is important. We compared the odour awareness of young children with ASD with those of typical development (TD) children using the Children's Olfactory Behavior in Everyday Life (COBEL) questionnaire, which is a self-report measure that mainly assesses odour awareness. Forty-five young boys (aged 5-6 years), including 20 children with ASD and 25 TD children, participated in this study. The total COBEL score of the young children with ASD was lower than that of the TD children (p < 0.01). Moreover, the total COBEL score was significantly correlated with the total VABS II score (p < 0.05). Our results improve understanding of the odour awareness in children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-018-3710-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=422

Brief Report: Olfactory Adaptation in Children with Autism Spectrum Disorders / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 49-8 (August 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-8 (August 2019) . - p.3462-3469 Titre : Brief Report: Olfactory Adaptation in Children with Autism Spectrum Disorders Type de document : texte imprimé Auteurs : Hirokazu KUMAZAKI, Auteur ; Taro MURAMATSU, Auteur ; Masutomo MIYAO, Auteur ; Ken-ichi OKADA, Auteur ; Masaru MIMURA, Auteur ; Mitsuru KIKUCHI, Auteur Article en page(s) : p.3462-3469 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Olfactory adaptation  Pulse ejection system  Social impairment  Typical development Index. décimale : PER Périodiques Résumé : Olfactory adaptation is an important process that allows the individual to adjust to changes in the environment. This process has been proposed to be aberrant in individuals with autism spectrum disorders (ASD). However, few studies have examined olfactory adaptation in children with ASD. We examined olfactory adaptation in children with ASD and typically developing (TD) children using a pulse ejection system, which resolved problems associated with previous laboratory-based olfactory psychophysical studies. Nine children with ASD and nine TD children participated in this study and all participants completed the entire experiment. Using this system, we found that the TD group showed greater adaptation than the ASD group. Our results provide a better understanding of olfactory adaptation in children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-019-04053-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=403 [article] Brief Report: Olfactory Adaptation in Children with Autism Spectrum Disorders [texte imprimé] / Hirokazu KUMAZAKI, Auteur ; Taro MURAMATSU, Auteur ; Masutomo MIYAO, Auteur ; Ken-ichi OKADA, Auteur ; Masaru MIMURA, Auteur ; Mitsuru KIKUCHI, Auteur . - p.3462-3469. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-8 (August 2019) . - p.3462-3469 Mots-clés : Autism spectrum disorders  Olfactory adaptation  Pulse ejection system  Social impairment  Typical development Index. décimale : PER Périodiques Résumé : Olfactory adaptation is an important process that allows the individual to adjust to changes in the environment. This process has been proposed to be aberrant in individuals with autism spectrum disorders (ASD). However, few studies have examined olfactory adaptation in children with ASD. We examined olfactory adaptation in children with ASD and typically developing (TD) children using a pulse ejection system, which resolved problems associated with previous laboratory-based olfactory psychophysical studies. Nine children with ASD and nine TD children participated in this study and all participants completed the entire experiment. Using this system, we found that the TD group showed greater adaptation than the ASD group. Our results provide a better understanding of olfactory adaptation in children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-019-04053-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=403

Brief Report: The Effectiveness of Hugging a Huggable Device Before Having a Conversation with an Unfamiliar Person for Autism Spectrum Disorders / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 52-7 (July 2022)  

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Impressions of Humanness for Android Robot may Represent an Endophenotype for Autism Spectrum Disorders / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 48-2 (February 2018)  

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Job interview training targeting nonverbal communication using an android robot for individuals with autism spectrum disorder / Hirokazu KUMAZAKI in Autism, 23-6 (August 2019)  

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Relationship Between Odor Identification and Visual Distractors in Children with Autism Spectrum Disorders / Hirokazu KUMAZAKI in Journal of Autism and Developmental Disorders, 48-7 (July 2018)  

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Sex differences in cognitive and symptom profiles in children with high functioning autism spectrum disorders / Hirokazu KUMAZAKI in Research in Autism Spectrum Disorders, 13-14 (May 2015)  

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The impact of robotic intervention on joint attention in children with autism spectrum disorders / Hirokazu KUMAZAKI in Molecular Autism, 9 (2018)  

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