Pearls & Oy-sters: Isolated Acquired Amusia in a Patient With Right Temporal Stroke
Why this work is in the frame
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Bibliographic record
Abstract
Strokes in the right temporal lobe are known to cause acquired amusia, or deficits in music processing, which can be formally assessed using the online version of the Montreal Battery of Evaluation of Amusia (MBEA). Patients with acquired amusia most often present with not only amusia but also other neurologic symptoms, such as aphasia, neglect, or memory issues. We report a case of a 39-year-old man who initially presented for follow-up after a single seizure episode. Two years before the seizure, the patient experienced an episode of headache, nausea, and vomiting, after which he developed difficulty appreciating music and carrying a tune, something he had never experienced before as a competent trumpet player and singer. An MRI scan performed after his seizure revealed encephalomalacia and gliosis within the right lateral temporal lobe with areas of hemosiderin deposition, suggesting that the episode 2 years ago was a stroke. His standard neurologic examination was normal including a score of 30/30 on the Montreal Cognitive Assessment. On the online version of the MBEA, he scored 66.7% on the off-tune test, 87.5% on the off-beat test, and 70.8% on the out-of-key test, consistent with a diagnosis of amusia. This case highlights the importance of eliciting less common isolated neurologic symptoms in patients with an otherwise normal examination, including musical symptoms. We also highlight the utility of tools such as the MBEA to document the severity of amusia and potentially to follow patients' progress as they recover.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.000 | 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 it