Association between alexithymia and hypothalamus-pituitary-adrenal axis activity in response to a psychosocial stress in women with eating disorders
Bibliographic record
Abstract
Alexithymia is a personality trait that has been defined as a difficulty in identifying, describing, and expressing one's emotions. Individuals with eating disorders (EDs) exhibit higher prevalence of alexithymia than general population. A prolonged exposure to stress related to alexithymia could affect the functioning of the hypothalamus-pituitary-adrenal (HPA) axis. The aim of this study was to assess the reactivity of HPA axis to the Trier Social Stress Test (TSST) by measuring the cortisol response in women with EDs according to their levels of alexithymia. Eighty-nine women with EDs and 40 healthy women participated into an experimental study. Alexithymia was evaluated by the Toronto Alexithymia Scale-20. Salivary cortisol levels were measured to assess the HPA axis reactivity to TSST. Women with EDs and high levels of alexithymia showed higher salivary cortisol compared to women with EDs and low alexithymia levels and healthy controls, but reduced change in cortisol over time, evaluated by AUCi, compared to healthy controls. In conclusion, our study results show that women with EDs and high levels of alexithymia exhibited higher basal activity and an impaired sensitivity of the HPA axis in response to TSST compared to women with EDs and low levels of alexithymia and healthy women.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".