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<p>This study investigated the mechanisms underlying disordered eating of autistic adults, by investigating associations between eating disorder (ED) symptoms and autistic traits; autism-specific atypical eating; alexithymia; interoception; and body image in autistic and non-autistic participants. Autistic adults (<i>n</i> = 196) and non-autistic adults (<i>n</i> = 206) completed online self-report measures assessing ED pathology, atypical eating, body image dissatisfaction, interoception, alexithymia, and autistic traits. Structural Equation Modelling tested a theoretical model of the relationships between these variables, and whether these relationships were moderated by autism diagnosis. Autistic adults self-reported higher ED pathology than non-autistic adults. The proposed model and the strength of the relationship between body image and ED pathology did not differ between the autistic and non-autistic groups. Atypical eating (not related to over-evaluation of weight/shape), however, was only associated with ED pathology in the autistic group. Both traditional and additional factors, including eating disturbances not driven by weight/shape concern, appear to contribute to ED pathology in autism.</p>

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The Relationship Between Interoception, Alexithymia, Autistic Traits and Eating Pathology in Autistic Adults

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月14日

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  • Heather Westwood,
  • Will Mandy,
  • Rebecca Brewer

摘要

This study investigated the mechanisms underlying disordered eating of autistic adults, by investigating associations between eating disorder (ED) symptoms and autistic traits; autism-specific atypical eating; alexithymia; interoception; and body image in autistic and non-autistic participants. Autistic adults (n = 196) and non-autistic adults (n = 206) completed online self-report measures assessing ED pathology, atypical eating, body image dissatisfaction, interoception, alexithymia, and autistic traits. Structural Equation Modelling tested a theoretical model of the relationships between these variables, and whether these relationships were moderated by autism diagnosis. Autistic adults self-reported higher ED pathology than non-autistic adults. The proposed model and the strength of the relationship between body image and ED pathology did not differ between the autistic and non-autistic groups. Atypical eating (not related to over-evaluation of weight/shape), however, was only associated with ED pathology in the autistic group. Both traditional and additional factors, including eating disturbances not driven by weight/shape concern, appear to contribute to ED pathology in autism.