0945 SLEEP RHYTHMIC MOVEMENTS IN CHILDHOOD: ASSOCIATED BEHAVIORAL, PSYCHOLOGICAL AND MATERNAL CHARACTERISTICS
Bibliographic record
Abstract
Sleep rhythmic movements (SRM) are stereotyped behaviors (mainly head-banging, body rocking and head-rolling) occurring during sleep or in the transition between wake and sleep. This parasomnia occurs primarily in childhood and its etiology remains unknown. It has been described as self-soothing mechanism, but evidences remain sparse. While associations between SRM and depression, anxiety, hyperactivity-inattention symptoms and maternal depression were documented, most studies used a retrospective design, which is subject to recall biases. The present study aims to (1)assess the prevalence of SRM in children from 12 to 60 months, and (2)document the association between SRM and psychological problems in children as well as maternal characteristics. Mother-child dyads (N=455, 245 boys) were part of the Maternal Adversity, Vulnerability and Neurodevelopment cohort. Presence or absence of SRM was assessed by annual report between ages 12 and 60 months: the mother was asked how frequently her child rocked himself/herself while falling asleep. Maternal sensitivity was assessed at 6 months with the Maternal Behaviour Q-Sort Revised version (MBQS-R). Behavioral problems were assessed at 48 and 60 months with the Children’s Behavioral Checklist (CBCL). Maternal depressive symptoms were assessed with the Center for Epidemiologic Studies Depression scale at each time point. Independent samples t-tests were used to assess differences between children with and without SRM. Results show that the highest prevalence of SRM is at 12 months(6.7%) and the lowest at 60 months(3.8%). Mothers of SRM children had lower scores of sensitivity and cooperation on the MBQS, as well as more depressive symptoms than mothers of non-SRM children. SRM children obtained higher mean total score on the CBCL and higher mean score for internalizing problems. These preliminary results show associations of SRM with lower maternal sensitivity and higher maternal depression, supporting the possible self-soothing component of SRM. Additionally, results show that SRM children present more internalizing problems. Mechanisms linking SRM, maternal well-being and children characteristics along with the evolution of these associations throughout development remain to be determined and will be further explored. Canadian Institutes of Health Research,Ludmer Centre for Neuroinformatics and Mental Health,Faculty of Medecine McGill University
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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 | 0.001 |
| 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 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".