Teaching Neuro <i>Image</i> : Posttraumatic palatal tremor
Bibliographic record
Abstract
A 56-year-old man with head injury, loss of consciousness, and normal head CT 6 weeks prior presented with persistent headache.No neurologic deficit was elicited on examination except for involuntary rhythmic movements of the soft palate, from which he was asymptomatic (video on the Neurology ® Web site at www. neurology.org).In particular, he did not complain of ear clicks, and no treatment was offered.MRI showed foci of remote diffuse axonal injury including the left superior cerebellar peduncle (figure ,A).The right inferior olivary nucleus was enlarged and hyperintense on T2-weighted images (figure ,B).Symptomatic palatal tremor occurs due to transsynaptic hypertrophic degeneration of the inferior olivary nucleus secondary to lesions involving the contralateral dentate nucleus, superior cerebellar peduncle, or ipsilateral central tegmental tract within the brainstem (Guillain-Mollaret triangle).
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.019 | 0.005 |
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".