Informational and Normative Influence on Conformity in Autism / Akiko KOBAYASHI in Autism Research, 19-7 (July 2026)  

Public ISBD [article]  inAutism Research > 19-7 (July 2026) . - p.e70284 Titre : Informational and Normative Influence on Conformity in Autism Type de document : texte imprimé Auteurs : Akiko KOBAYASHI, Auteur ; Takuya MAKINO, Auteur ; Yuka MIZUNO, Auteur ; Hirotaka KOSAKA, Auteur ; Keise IZUMA, Auteur Article en page(s) : p.e70284 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  heterogeneity  informational influence  normative influence  social camouflaging  social conformity Index. décimale : PER Périodiques Résumé : ABSTRACT This preregistered study examined whether adults with autism spectrum disorder (ASD) show reduced social conformity and whether any such reduction depends on the type of social influence. Social conformity?the tendency to adjust one's judgments to align with those of others?is typically driven by normative (acceptance-seeking) and informational (accuracy-seeking) motives. Thirty adults with ASD and 30 matched neurotypical (NT) adults completed two tasks: a preference rating task indexing normative influence, and a dot-counting task indexing informational influence with monetary rewards. Contrary to our predictions, adults with ASD conformed as much as NT adults in the preference rating task but showed significantly reduced conformity in the dot-counting task. Exploratory analyses indicated that this reduction was driven by a distinct subgroup of nine adults with ASD who never revised their initial estimates despite informative social cues, resulting in poorer accuracy and lower rewards. When this subgroup was excluded, group differences in conformity were no longer evident. These findings suggest that, overall, adults with ASD are as susceptible as NT adults to normative influence but less responsive to informational influence, highlighting the importance of distinguishing between types of social influence and considering individual differences when characterizing social behavior in ASD. En ligne : https://doi.org/10.1002/aur.70284 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=589 [article] Informational and Normative Influence on Conformity in Autism [texte imprimé] / Akiko KOBAYASHI, Auteur ; Takuya MAKINO, Auteur ; Yuka MIZUNO, Auteur ; Hirotaka KOSAKA, Auteur ; Keise IZUMA, Auteur . - p.e70284. Langues : Anglais (eng) in Autism Research > 19-7 (July 2026) . - p.e70284 Mots-clés : autism spectrum disorder  heterogeneity  informational influence  normative influence  social camouflaging  social conformity Index. décimale : PER Périodiques Résumé : ABSTRACT This preregistered study examined whether adults with autism spectrum disorder (ASD) show reduced social conformity and whether any such reduction depends on the type of social influence. Social conformity?the tendency to adjust one's judgments to align with those of others?is typically driven by normative (acceptance-seeking) and informational (accuracy-seeking) motives. Thirty adults with ASD and 30 matched neurotypical (NT) adults completed two tasks: a preference rating task indexing normative influence, and a dot-counting task indexing informational influence with monetary rewards. Contrary to our predictions, adults with ASD conformed as much as NT adults in the preference rating task but showed significantly reduced conformity in the dot-counting task. Exploratory analyses indicated that this reduction was driven by a distinct subgroup of nine adults with ASD who never revised their initial estimates despite informative social cues, resulting in poorer accuracy and lower rewards. When this subgroup was excluded, group differences in conformity were no longer evident. These findings suggest that, overall, adults with ASD are as susceptible as NT adults to normative influence but less responsive to informational influence, highlighting the importance of distinguishing between types of social influence and considering individual differences when characterizing social behavior in ASD. En ligne : https://doi.org/10.1002/aur.70284 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=589

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

Reduced relationship-specific social touching and atypical association with emotional bonding in autistic adults / Ayaka FUKUOKA in Molecular Autism, 16 (2025)  

Public ISBD [article]  inMolecular Autism > 16 (2025) . - 31 Titre : Reduced relationship-specific social touching and atypical association with emotional bonding in autistic adults Type de document : texte imprimé Auteurs : Ayaka FUKUOKA, Auteur ; Ryo KITADA, Auteur ; Kai MAKITA, Auteur ; Takuya MAKINO, Auteur ; Nodoka SAKAKIHARA, Auteur ; Lauri NUMMENMAA, Auteur ; Hirotaka KOSAKA, Auteur ; Ayaka FUKUOKA, Auteur ; Ryo KITADA, Auteur ; Kai MAKITA, Auteur ; Takuya MAKINO, Auteur ; Nodoka SAKAKIHARA, Auteur ; Lauri NUMMENMAA, Auteur ; Hirotaka KOSAKA, Auteur Article en page(s) : 31 Langues : Anglais (eng) Mots-clés : Humans  Female  Male  Adult  Emotions  Autism Spectrum Disorder/psychology  Middle Aged  Touch  Young Adult  Interpersonal Relations  Autistic Disorder/psychology  Social Behavior  Object Attachment  Emotion  Pleasantness  Social closeness  Social network  Social touch  approved by The Research Ethics Committee of University of Fukui (20210117), and  the Research Ethics Committee at the Graduate School of Intercultural Studies,  Kobe University (2021–2, 2022–4). All methods were carried out in accordance with  the approved guidelines and the Declaration of Helsinki. Each participant in the  main study provided written informed consent after receiving a detailed  explanation of the study, and each participant in the pilot experiment provided  online informed consent. Competing interests: The authors declare no competing  interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is a neurodevelopmental disorder defined by social communication deficits, repetitive behaviors and restricted interests. Studies have reported aberrant sensory responses, including altered experiences of social touch, in individuals with ASD. However, the relationship between atypical social touch and social networks in ASD remains poorly understood. Social touch is used to strengthen and manage social networks in many species. Studies in general populations across diverse cultures show that the extent of permissible touch is consistently linked to the strength of emotional bonds between the toucher and the touched individual. This study examined relationship-specific patterns of social touch and their association with emotional bonding in individuals with ASD. METHODS: Seventy adults with ASD and 70 typically developed (TD) adults rated their emotional bonds with different social network members (e.g., partners, fathers, strangers) and the pleasantness of being touched by each. Participants also identified body regions where they allowed touch. We hypothesized that patterns of interpersonal touch allowance and emotional bonding, and their relationship, would differ between ASD and TD adults. RESULT: In all social network members except children and female friends, ASD adults allowed significantly less social touching than TD adults. Compared to TD adults, ASD adults also reported having significantly weaker emotional bonds with one social network member and experiencing significantly less pleasantness when touched by multiple members of their social network. In both groups, strength of emotional bond was significantly correlated with permissible touch area. Linear regression analyses showed that our ASD participants were more reliant on bodily touch allowance for emotional bonding than the TD controls. LIMITATIONS: More participants are necessary to secure sufficient number of social network members in ASD. CONCLUSIONS: Our results suggest that adults with ASD generally prefer less social touch from most social network members and show reduced emotional bonding with only a specific connection. In addition, touch allowance was more strongly associated with emotional bonding in ASD than TD adults. These findings highlight the influence of autistic traits on the relationship between social touch and emotional bonding within social networks. En ligne : https://dx.doi.org/10.1186/s13229-025-00666-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=569 [article] Reduced relationship-specific social touching and atypical association with emotional bonding in autistic adults [texte imprimé] / Ayaka FUKUOKA, Auteur ; Ryo KITADA, Auteur ; Kai MAKITA, Auteur ; Takuya MAKINO, Auteur ; Nodoka SAKAKIHARA, Auteur ; Lauri NUMMENMAA, Auteur ; Hirotaka KOSAKA, Auteur ; Ayaka FUKUOKA, Auteur ; Ryo KITADA, Auteur ; Kai MAKITA, Auteur ; Takuya MAKINO, Auteur ; Nodoka SAKAKIHARA, Auteur ; Lauri NUMMENMAA, Auteur ; Hirotaka KOSAKA, Auteur . - 31. Langues : Anglais (eng) in Molecular Autism > 16 (2025) . - 31 Mots-clés : Humans  Female  Male  Adult  Emotions  Autism Spectrum Disorder/psychology  Middle Aged  Touch  Young Adult  Interpersonal Relations  Autistic Disorder/psychology  Social Behavior  Object Attachment  Emotion  Pleasantness  Social closeness  Social network  Social touch  approved by The Research Ethics Committee of University of Fukui (20210117), and  the Research Ethics Committee at the Graduate School of Intercultural Studies,  Kobe University (2021–2, 2022–4). All methods were carried out in accordance with  the approved guidelines and the Declaration of Helsinki. Each participant in the  main study provided written informed consent after receiving a detailed  explanation of the study, and each participant in the pilot experiment provided  online informed consent. Competing interests: The authors declare no competing  interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is a neurodevelopmental disorder defined by social communication deficits, repetitive behaviors and restricted interests. Studies have reported aberrant sensory responses, including altered experiences of social touch, in individuals with ASD. However, the relationship between atypical social touch and social networks in ASD remains poorly understood. Social touch is used to strengthen and manage social networks in many species. Studies in general populations across diverse cultures show that the extent of permissible touch is consistently linked to the strength of emotional bonds between the toucher and the touched individual. This study examined relationship-specific patterns of social touch and their association with emotional bonding in individuals with ASD. METHODS: Seventy adults with ASD and 70 typically developed (TD) adults rated their emotional bonds with different social network members (e.g., partners, fathers, strangers) and the pleasantness of being touched by each. Participants also identified body regions where they allowed touch. We hypothesized that patterns of interpersonal touch allowance and emotional bonding, and their relationship, would differ between ASD and TD adults. RESULT: In all social network members except children and female friends, ASD adults allowed significantly less social touching than TD adults. Compared to TD adults, ASD adults also reported having significantly weaker emotional bonds with one social network member and experiencing significantly less pleasantness when touched by multiple members of their social network. In both groups, strength of emotional bond was significantly correlated with permissible touch area. Linear regression analyses showed that our ASD participants were more reliant on bodily touch allowance for emotional bonding than the TD controls. LIMITATIONS: More participants are necessary to secure sufficient number of social network members in ASD. CONCLUSIONS: Our results suggest that adults with ASD generally prefer less social touch from most social network members and show reduced emotional bonding with only a specific connection. In addition, touch allowance was more strongly associated with emotional bonding in ASD than TD adults. These findings highlight the influence of autistic traits on the relationship between social touch and emotional bonding within social networks. En ligne : https://dx.doi.org/10.1186/s13229-025-00666-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=569

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