Electroencephalography Findings in Wrong Way Eyes: Unilateral Hemispheric Dysfunction Supporting Smooth Pursuit Asymmetry Hypothesis
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Bibliographic record
Abstract
BACKGROUND: Conjugate horizontal eye deviation away from the side of the lesion, termed Wrong Way Eyes (WWE), is a rare manifestation of supratentorial lesions. The proposed etiologic hypotheses include seizure activity, compression of contralateral horizontal gaze pathways from mass effect or midline shift, and asymmetry of hemispheric smooth pursuit mechanisms. We present neurophysiological evidence that favors the asymmetry of hemispheric smooth pursuit hypothesis. METHODS: Electroencephalography (EEG) was performed in 2 patients with large left hemispheric supratentorial lesions, capturing fluctuating periods of (a) unresponsiveness with WWE and (b) relative alertness without WWE. One patient had 5 days of continuous EEG, and the other routine EEG. RESULTS: Neither patient had seizures. EEG showed normal right hemispheric activity during both unresponsiveness with WWE and alertness without WWE states. By contrast, more severe left hemispheric dysfunction was evident in the WWE state compared with the non-WWE state in both patients. In one patient, during the relatively alert state, right-beating nystagmus was observed, and drift of the eyes away from the side of the lesion was reliably seen to occur on eyelid closure and after ipsiversive volitional saccades. CONCLUSIONS: Seizure activity does not account for WWE. Compression of contralateral horizontal gaze pathways is also unlikely to account for WWE as that hypothetical mechanism should produce EEG abnormalities over the nonlesioned hemisphere, which were not seen. The findings suggest instead that a single dysfunctional hemisphere is sufficient to produce WWE. The repeated rightward drift of the eyes and nystagmus seen in one patient during relative alertness, and the observation of unilateral hemispheric dysfunction on EEG during unresponsiveness with WWE in both patients supports the idea that an imbalance of smooth pursuit mechanisms is most likely to account for this rare phenomenon.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 it