Know when to hold ‘em: How does early infant-caregiver physical contact impact infant behavior and development?
Bibliographic record
Abstract
Skin is the largest sense organ, and in early infancy, it may be the most important sense as it encompasses almost all infant-caregiver interactions. At the turn of the century, we knew that infant-caregiver touch mattered, as research on the effects of touch deprivation showed devastating consequences for development. Yet beyond the effect of lack of physical contact, the importance of tactile contact to infants' early development received scant research compared to that of vision or hearing. In the past 25 years that has changed. Touch has emerged as a major research area. In this article, we present five major lessons learned in the past quarter century from research on early infant-caregiver physical contact: 1) some touch is required, 2) touch is a form of communication, 3) touch is pleasurable, 4) touch supports stress regulation, and 5) interventions that extend touch support infant development. We then propose pressing questions for future research on early infant-caregiver physical contact. Research on the effects of physical contact in early infancy can affect a positive influence on childcare practices, interventions, parenting ideas, and health care policies.
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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 | 0.004 | 0.020 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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".