FINGER TAPPING AND COGNITION IN PARKINSON'S
Bibliographic record
Abstract
Objective To investigate separable components of finger tapping (FT) of the thumb and index finger in Parkinson's (PD) with normal (PD-NC) and impaired cognition (PD-CI) and in healthy controls (HC). Methods 58 PD and 29 HC performed FT for 30 seconds whilst attached to electromagnetic movement sensors sampling at 60 Hz. All subjects completed the Montreal Cognitive Assessment (MoCA); PD-NC defined as MoCA score ≥26, PD-CI as MoCA score <26. Results PD and HC were age-matched. Mean disease duration of PD 6.2 years, Hoehn and Yahr stage 1.9. Mean MoCA score PD 23.1, HC 26.3 (P<0.001). PD had significantly (P<0.01) smaller mean velocity and amplitude of FT, greater decrement of speed and greater variability of rhythm (speed and amplitude coefficient of variation). Age, disease duration, motor score and levodopa dose were not significantly different between PD-CI (n=36) and PD-NC (n=22). PD-CI had significantly less rhythmic FT movements than PD-NC (P<0.01) but other parameters were similar. MoCA score was negatively correlated with rhythm in PD (P 0.017). Conclusion As expected PD have slower, less rhythmic FT movements with greater decrement than HC. Those with PD-CI have significantly less rhythmic movement than those with PD-NC – this finding is currently being investigated.
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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 | 0.000 | 0.001 |
| 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 | 0.000 |
| 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".