Reduced preference for smooth over rough surfaces in autism spectrum disorder / Kai MAKITA in Research in Autism, 132 (April 2026)  

Public ISBD [article]  inResearch in Autism > 132 (April 2026) . - 202873 Titre : Reduced preference for smooth over rough surfaces in autism spectrum disorder Type de document : texte imprimé Auteurs : Kai MAKITA, Auteur ; Ryo KITADA, Auteur ; Takuya MAKINO, Auteur ; Nodoka SAKAKIHARA, Auteur ; Ayaka FUKUOKA, Auteur ; Yuka MIZUNO, Auteur ; Hirotaka KOSAKA, Auteur Article en page(s) : 202873 Langues : Anglais (eng) Mots-clés : ASD  Touch  Roughness  Emotion  Affect  Psychophysics Résumé : Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by social communication deficits, repetitive behaviors and restricted interests. Studies have reported atypical sensory responses in individuals with ASD. While atypical affective responses to being touched by others have been documented, preferences for the physical properties of objects in ASD remain poorly understood. Here, we conducted psychophysical experiments to examine whether individuals with ASD show atypical affective responses to object surfaces varying in smoothness. Forty adults with ASD and 40 typically developed (TD) adults provided magnitude estimates of pleasantness or perceived smoothness while their right fingers or forearm were stimulated with raised-dot surfaces of varying interdot spacing. Magnitude estimates of both perceived pleasantness and perceived smoothness decreased with increasing interdot spacing. The decrease in pleasantness was consistently less steep in the ASD group than in the TD group for both forearm and fingers. In contrast, evidence for group differences in smoothness was limited and insufficient to support a reliable group difference. These findings indicate that, compared with TD adults, adults with ASD may show a reduced preference for smoother over rougher surfaces, highlighting an atypical response to textured surfaces, especially with respect to pleasantness. En ligne : https://doi.org/10.1016/j.reia.2026.202873 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=583 [article] Reduced preference for smooth over rough surfaces in autism spectrum disorder [texte imprimé] / Kai MAKITA, Auteur ; Ryo KITADA, Auteur ; Takuya MAKINO, Auteur ; Nodoka SAKAKIHARA, Auteur ; Ayaka FUKUOKA, Auteur ; Yuka MIZUNO, Auteur ; Hirotaka KOSAKA, Auteur . - 202873. Langues : Anglais (eng) in Research in Autism > 132 (April 2026) . - 202873 Mots-clés : ASD  Touch  Roughness  Emotion  Affect  Psychophysics Résumé : Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by social communication deficits, repetitive behaviors and restricted interests. Studies have reported atypical sensory responses in individuals with ASD. While atypical affective responses to being touched by others have been documented, preferences for the physical properties of objects in ASD remain poorly understood. Here, we conducted psychophysical experiments to examine whether individuals with ASD show atypical affective responses to object surfaces varying in smoothness. Forty adults with ASD and 40 typically developed (TD) adults provided magnitude estimates of pleasantness or perceived smoothness while their right fingers or forearm were stimulated with raised-dot surfaces of varying interdot spacing. Magnitude estimates of both perceived pleasantness and perceived smoothness decreased with increasing interdot spacing. The decrease in pleasantness was consistently less steep in the ASD group than in the TD group for both forearm and fingers. In contrast, evidence for group differences in smoothness was limited and insufficient to support a reliable group difference. These findings indicate that, compared with TD adults, adults with ASD may show a reduced preference for smoother over rougher surfaces, highlighting an atypical response to textured surfaces, especially with respect to pleasantness. En ligne : https://doi.org/10.1016/j.reia.2026.202873 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=583

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