Effects of object familiarity on children’s silent gestures
Bibliographic record
Abstract
When gesturing (with or without speech) actions done with objects, young children and adults with apraxia often produce a body-part-as-object (BPO), like an extended finger for a toothbrush. In contrast, older children and neurotypical adults often produce an imagined object (IO), like pretending to hold a toothbrush. The purpose of this study was to test whether IOs are produced when children have a rich conceptual understanding of the functions of an object. If so, children should produce more IOs (relative to BPOs) with familiar than with unfamiliar objects. Children between three and five years old were asked to demonstrate what to do with either familiar or unfamiliar objects. As predicted, the children produced more IOs with familiar than unfamiliar objects. These results are consistent with the argument that children's handshape when gesturing reflects the richness of their understanding. Developmental change likely occurs as children develop a rich understanding of many objects.
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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 | 0.002 | 0.018 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".