Avoidance habit learning in adolescents and young women with anorexia nervosa: an fMRI study / Julius HENNIG in Journal of Child Psychology and Psychiatry, 67-1 (January 2026)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 67-1 (January 2026) . - p.79-91 Titre : Avoidance habit learning in adolescents and young women with anorexia nervosa: an fMRI study Type de document : texte imprimé Auteurs : Julius HENNIG, Auteur ; Ilka BOEHM, Auteur ; Katharina ZWOSTA, Auteur ; Joseph A. KING, Auteur ; Daniel GEISLER, Auteur ; Hannes RUGE, Auteur ; Maria SEIDEL, Auteur ; Fabio BERNARDONI, Auteur ; Inger HELLERHOFF, Auteur ; Arne DOOSE, Auteur ; Sophie PAULIGK, Auteur ; Henri LESCHZINSKI, Auteur ; Veit ROESSNER, Auteur ; Uta WOLFENSTELLER, Auteur ; Stefan EHRLICH, Auteur Article en page(s) : p.79-91 Langues : Anglais (eng) Mots-clés : Adolescence  neuroimaging  habitual behavior  avoidance  eating disorder Index. décimale : PER Périodiques Résumé : Background Anorexia nervosa (AN), often with an onset in adolescence, is a complex eating disorder characterized by distorted body image, fear of weight gain, and extreme food restriction, leading to severe underweight. Excessive goal pursuit and avoidance behaviors have been proposed as key factors in AN, which over time may become over-trained into habits. Methods This study investigated the behavioral and neural correlates of habit learning in AN with an experiment consisting of three consecutive phases: (1) training goal-directed behavior, (2) avoidance learning, and (3) a habit test. Forty-five acutely underweight adolescent female patients with AN and 45 age-matched healthy control participants underwent an fMRI scan. Results No behavioral group differences were evident either during learning of avoidance habits or when testing habit strength. Importantly, however, the AN group showed both generally superior task performance and increased involvement of the frontoparietal brain regions during habit learning. Conclusions Collectively, our findings provide novel evidence suggesting that excessive goal pursuit may predominate in young AN in an avoidance learning context. Future research should examine if this tendency develops into habit learning over time and investigate the speed and strength of avoidance habit formation in adults with a longer history of AN to further elucidate the intricate dynamic between goal-directed and habitual processes in the disorder. En ligne : https://doi.org/10.1111/jcpp.70019 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=577 [article] Avoidance habit learning in adolescents and young women with anorexia nervosa: an fMRI study [texte imprimé] / Julius HENNIG, Auteur ; Ilka BOEHM, Auteur ; Katharina ZWOSTA, Auteur ; Joseph A. KING, Auteur ; Daniel GEISLER, Auteur ; Hannes RUGE, Auteur ; Maria SEIDEL, Auteur ; Fabio BERNARDONI, Auteur ; Inger HELLERHOFF, Auteur ; Arne DOOSE, Auteur ; Sophie PAULIGK, Auteur ; Henri LESCHZINSKI, Auteur ; Veit ROESSNER, Auteur ; Uta WOLFENSTELLER, Auteur ; Stefan EHRLICH, Auteur . - p.79-91. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 67-1 (January 2026) . - p.79-91 Mots-clés : Adolescence  neuroimaging  habitual behavior  avoidance  eating disorder Index. décimale : PER Périodiques Résumé : Background Anorexia nervosa (AN), often with an onset in adolescence, is a complex eating disorder characterized by distorted body image, fear of weight gain, and extreme food restriction, leading to severe underweight. Excessive goal pursuit and avoidance behaviors have been proposed as key factors in AN, which over time may become over-trained into habits. Methods This study investigated the behavioral and neural correlates of habit learning in AN with an experiment consisting of three consecutive phases: (1) training goal-directed behavior, (2) avoidance learning, and (3) a habit test. Forty-five acutely underweight adolescent female patients with AN and 45 age-matched healthy control participants underwent an fMRI scan. Results No behavioral group differences were evident either during learning of avoidance habits or when testing habit strength. Importantly, however, the AN group showed both generally superior task performance and increased involvement of the frontoparietal brain regions during habit learning. Conclusions Collectively, our findings provide novel evidence suggesting that excessive goal pursuit may predominate in young AN in an avoidance learning context. Future research should examine if this tendency develops into habit learning over time and investigate the speed and strength of avoidance habit formation in adults with a longer history of AN to further elucidate the intricate dynamic between goal-directed and habitual processes in the disorder. En ligne : https://doi.org/10.1111/jcpp.70019 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=577

Disentangling the perceptual underpinnings of autism: Evidence from a face aftereffects experiment / Julius HENNIG ; Arne DOOSE ; Clara Marie BREIER ; Alexander SOUTSCHEK ; Nicole BEYER ; Stefan SCHWEINBERGER ; Inge KAMP-BECKER ; Luise POUSTKA ; Katja ALBERTOWSKI ; Veit ROESSNER ; Stefan EHRLICH in Autism Research, 18-2 (February 2025)  

Public ISBD [article]  inAutism Research > 18-2 (February 2025) . - p.349-361 Titre : Disentangling the perceptual underpinnings of autism: Evidence from a face aftereffects experiment : Autism Research Type de document : texte imprimé Auteurs : Julius HENNIG, Auteur ; Arne DOOSE, Auteur ; Clara Marie BREIER, Auteur ; Alexander SOUTSCHEK, Auteur ; Nicole BEYER, Auteur ; Stefan SCHWEINBERGER, Auteur ; Inge KAMP-BECKER, Auteur ; Luise POUSTKA, Auteur ; Katja ALBERTOWSKI, Auteur ; Veit ROESSNER, Auteur ; Stefan EHRLICH, Auteur Article en page(s) : p.349-361 Langues : Anglais (eng) Mots-clés : autism face aftereffects gender processing hierarchical drift diffusion modeling perceptual processing Index. décimale : PER Périodiques Résumé : Abstract Existing literature has documented diminished norm-based adaptation (aftereffects) across several perceptual domains in autism. However, the exact underlying mechanisms, such as sensory dominance possibly caused by imprecise priors and/or increased sensory precision, remain elusive. The ?Bayesian brain framework offers refined methods to investigate these mechanisms. This study utilized both model-free (frequentist statistics) and model-based (hierarchical Drift Diffusion Modeling) analytical approaches to compare gender face aftereffects in male adolescents with autism (n 29) to neurotypical controls (n 39) using a behavioral choice experiment. Contrary to our initial hypotheses, our analyses did not find support for imprecise priors or increased sensory precision within the autistic group. Instead, we observed generally decreased drift rates towards male but not female stimuli in the autistic group. Thus, our findings suggest a lack of own-gender bias in face processing among the autistic participants. These findings align with more recent behavioral and neurophysiological research observing intact priors in individuals with autism, suggesting that other mechanisms may better explain the perceptual challenges in autism. Our study contributes to the ongoing discourse on perceptual processing in autism, emphasizing the necessity for more nuanced analytical approaches in order to unravel the complexity of this condition. En ligne : https://doi.org/10.1002/aur.3283 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=547 [article] Disentangling the perceptual underpinnings of autism: Evidence from a face aftereffects experiment : Autism Research [texte imprimé] / Julius HENNIG, Auteur ; Arne DOOSE, Auteur ; Clara Marie BREIER, Auteur ; Alexander SOUTSCHEK, Auteur ; Nicole BEYER, Auteur ; Stefan SCHWEINBERGER, Auteur ; Inge KAMP-BECKER, Auteur ; Luise POUSTKA, Auteur ; Katja ALBERTOWSKI, Auteur ; Veit ROESSNER, Auteur ; Stefan EHRLICH, Auteur . - p.349-361. Langues : Anglais (eng) in Autism Research > 18-2 (February 2025) . - p.349-361 Mots-clés : autism face aftereffects gender processing hierarchical drift diffusion modeling perceptual processing Index. décimale : PER Périodiques Résumé : Abstract Existing literature has documented diminished norm-based adaptation (aftereffects) across several perceptual domains in autism. However, the exact underlying mechanisms, such as sensory dominance possibly caused by imprecise priors and/or increased sensory precision, remain elusive. The ?Bayesian brain framework offers refined methods to investigate these mechanisms. This study utilized both model-free (frequentist statistics) and model-based (hierarchical Drift Diffusion Modeling) analytical approaches to compare gender face aftereffects in male adolescents with autism (n 29) to neurotypical controls (n 39) using a behavioral choice experiment. Contrary to our initial hypotheses, our analyses did not find support for imprecise priors or increased sensory precision within the autistic group. Instead, we observed generally decreased drift rates towards male but not female stimuli in the autistic group. Thus, our findings suggest a lack of own-gender bias in face processing among the autistic participants. These findings align with more recent behavioral and neurophysiological research observing intact priors in individuals with autism, suggesting that other mechanisms may better explain the perceptual challenges in autism. Our study contributes to the ongoing discourse on perceptual processing in autism, emphasizing the necessity for more nuanced analytical approaches in order to unravel the complexity of this condition. En ligne : https://doi.org/10.1002/aur.3283 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=547

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