An evaluation of sensory and semantic contributions to imitation in individuals with Parkinson's disease
Bibliographic record
Abstract
Higher order motor impairments are rarely investigated in movement disordered populations such as Parkinson's disease (PD). However, individuals with PD have been shown to elicit signs of apraxia with deficits in the spatial and temporal organization of gestures. According to the model of Roy et al (1991), it was hypothesized that both sensory and conceptual systems would contribute to the deficits in PD. The goal of the present study was to evaluate if individuals with PD would be less accurate during imitation of gestures without vision of their limbs, and/or less accurate during gestures that do not involve access to semantics. 48 PD and 16 healthy controls completed a set of imitation tasks involving meaningful and meaningless gestures performed with and without vision. Z-scores were computed for the PD relative to the controls. PD performed worse on meaningless gestures compared to meaningful gestures (p
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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 | 0.005 |
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| 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".