Interoceptive patterns and alexithymia in adolescents with anorexia nervosa
Bibliographic record
Abstract
Alexithymia is a central concept in understanding the psychological vulnerability to eating disorders. Associations between alexithymia and distinct components of interoception have previously been reported in healthy individuals and those with mental health problems. From a therapeutic perspective, it is important to determine whether such associations exist for adolescents with anorexia nervosa and which domains of interoception (i.e., accuracy [IAc], awareness [IAw], and sensibility [ISe]) are concerned. A cross-sectional study was conducted on twenty 12–17-year-old hospitalized adolescent girls with restrictive anorexia nervosa ( M = 14 years ± 1.59, mean BMI of 15.59). The heartbeat detection task (HBDT) assessed IAc and IAw. The Porges Body Perception Questionnaire (PBPQ) was used for ISe, the Children-Toronto Alexithymia Scale (CTAS) for alexithymia, alongside the Child Depressive Inventory (CDI) for depression, the ECAP for anxiety, and the Difficulties in Emotion Regulation Scale–Youth scale (DERS-Y) for emotional dysregulation. The error rate at the HBDT was negatively correlated with the CTAS sub score “ Externally-oriented thinking ” but no other CTAS sub scores or other clinical dimensions. The association between IAw and the CTAS sub-score “ Externally-oriented thinking ” failed to remain significant after Bonferroni correction. The PBPQ total score was positively correlated with the CDI total score and the ECAP fear sub score. Among adolescents hospitalized for anorexia nervosa, the more accurate the detection of heart rate, the more frequently operative thinking was reported, while a high level of ISe was associated with anxiety and depression-related symptoms. The mechanisms underlying the relation between the discrimination of body perception and emotional processing may vary across psychiatric disorders. L’alexithymie est un concept central pour comprendre la vulnérabilité psychologique aux troubles du comportement alimentaire. Des associations entre l’alexithymie et différentes composantes de l’intéroception ont déjà été rapportées chez des personnes en bonne santé et présentant des troubles psychiatriques variés. D’un point de vue thérapeutique, il est important de déterminer si de telles associations existent chez les adolescents atteints d’anorexie mentale et quels domaines de l’intéroception (précision, conscience, sensibilité, métacognition) sont concernés. Cette étude transversale a été menée auprès de vingt adolescentes âgées de 12 à 17 ans hospitalisées pour anorexie mentale de type restrictif (âge moyen = 14 ans ± 1,59, IMC moyen = 15,59). La tâche de détection des battements cardiaques ( Heart Beat Detection Task ) a été utilisée pour mesurer la précision, la confiance et la conscience intéroceptive. Le questionnaire de perception corporelle de Porges (PBPQ) a été utilisé pour évaluer la sensibilité intéroceptive, l’échelle Children-Toronto Alexithymia Scale (CTAS) pour l’alexithymie, le Children Depression Inventory (CDI) pour les symptômes dépressifs, l’ECAP pour les symptômes anxieux et la Difficulties in Emotion Regulation Scale–Youth scale (DERS-Y) pour la dysrégulation des émotions. Le taux d’erreur au HBDT était négativement corrélé au sous-score « pensée orientée vers l’extérieur » du CTAS, mais à aucun autre sous-score de CTAS ni à aucune autre dimension clinique. Une association entre la conscience intéroceptive et le sous-score « pensée orientée vers l’extérieur » n’était plus significative après la correction par Bonferroni. Le score total au PBPQ était positivement corrélé au score total de la CDI et au sous-score de peur de l’ECAP. Parmi les adolescents hospitalisés pour anorexie mentale, plus la détection du rythme cardiaque était précise, plus le mode de pensée opératoire était fréquent. Un niveau élevé de sensibilité est associé à des symptômes d’anxiété et de dépression. Les mécanismes qui sous-tendent la relation entre les capacités de discrimination des perceptions corporelles et le traitement des émotions sont distincts selon les troubles.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".