Abstract
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.
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HK designed the study, conducted the experiment, performed the statistical analyses, analyzed and interpreted the data, and drafted the manuscript. TM, MM, KO, MM, and MK conceived the study, participated in its design, assisted with the data collection and scoring of the behavioral measures, analyzed and interpreted the data, were involved in drafting the manuscript and revised the manuscript critically for important intellectual content. MK was involved in the final approval of the version to be published. All authors read and approved the final manuscript.
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Participants were recruited from Kanazawa University. After a complete explanation of the study, all the participants and their parents provided written, informed consent. All participants and their parents agreed to participate in the study.
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Kumazaki, H., Muramatsu, T., Miyao, M. et al. Brief Report: Olfactory Adaptation in Children with Autism Spectrum Disorders. J Autism Dev Disord 49, 3462–3469 (2019). https://doi.org/10.1007/s10803-019-04053-6
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DOI: https://doi.org/10.1007/s10803-019-04053-6