Examining associations between internalizing behaviour, cortisol reactivity, and physiological coordination, in two differentially potent challenges
Bibliographic record
Abstract
Background: Research examining associations between child internalizing behaviours and cortisol reactivity is equivocal, with studies suggesting positive, negative and non-significant associations. The present study assessed three primary confounds that contribute to these inconsistencies: 1) the differential effectiveness of laboratory challenges in eliciting cortisol reactivity; 2) the impact of coordination between the Hypothalamic-Pituitary-Adrenal axis and the Sympathetic-Adrenal-Medullary system (assessed via salivary alpha-amylase (sAA)); and 3) variation in the measurement of internalizing behaviour, specifically, parent versus child ratings. The primary aims of this study were to assess internalizing behaviours in relation to both cortisol reactivity and coordination between cortisol and sAA, measured in two distinct challenges. Method: A community sample of 8-10 year olds (N= 52) participated in two laboratory challenges, across two study sessions: 1) the Trier Social Stress Test-Child Version (TSST-C), a potent social-evaluative challenge, and 2) a less-potent competition challenge, composed of a puzzle and mirror-tracing task. Saliva was collected at several time points before and after each challenge. Saliva was later assayed to extract cortisol and sAA. Child-reported depressive symptoms were assessed using the Child Depression Inventory, and maternal-reported internalizing problems were assessed using the Child Behavior Checklist. Multilevel modelling was conducted using Hierarchical Linear Modeling. Results: In the TSST-C, child-reported depressive symptoms were significantly associated with a declining cortisol trajectory. Maternal-reported internalizing problems were not associated with cortisol and internalizing behaviour did not moderate the impact of sAA levels on cortisol levels (i.e., coordination) in the TSST-C. With regards to the competition challenge, maternal-reported internalizing behaviours predicted cortisol-sAA coordination, such that children with more internalizing behaviours who experienced higher sAA levels also had higher cortisol reactivity. However, there were no significant associations between child-reported depressive symptoms, cortisol reactivity, or coordination between sAA and cortisol reactivity in the competition challenge. Conclusions: Results are discussed in the context of allostatic load and in relation to theories of physiological coordination. These findings underscore the importance of differential stressor contexts, physiological coordination, and the informant of internalizing behaviours moderating associations between internalizing behaviour and cortisol reactivity. Future research should integrate these factors in models of physiological stress and developmental psychopathology.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".