Pure Severe Dyslexia After a Perinatal Focal Lesion: Evidence of a Specific Module for Acquisition of Reading
Bibliographic record
Abstract
A child with a small, residual "localized" perinatally acquired left hemisphere temporal tip lesion is described. He presents with pure and severe dyslexia and average to high-average cognitive skills, which are usually in the low-average range in patients with developmental dyslexia. A highly circumscribed deficit of rote auditory verbal memory was the only deficit other than the dyslexia; his verbal semantic memory and visuospatial memory were intact. Two previously reported cases present a similar functional profile and lesion locus. This profile indicates that there may exist, at birth, a localized neural network dedicated to "reading acquisition" and that the layout of this network may differ from the systems identified as defective in developmental dyslexia, as well as in cases of acquired dyslexia in adults.
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How this classification was reachedexpand
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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 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) | 0.002 | 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 teacher head, 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".