El TDAH podria deure's no només a un dèficit d'atenció sinó també de motivació
Bibliographic record
Abstract
Una tesi de la UAB dóna llum nova sobre el famós Trastorn per Dèficit d'Atenció amb Hiperactivitat. La troballa més espectacular és que existeixen alteracions no només en les àrees cerebrals relacionades amb l'atenció i la concentració, sinó també en regions implicades en la motivació, en concret en el nucli accumbens. Aquest descobriment ofereix una perspectiva completament nova sobre el trastorn: podria tractar-se no només d'un problema d'atenció, sinó també de motivació. En el mateix estudi, i mitjançant l'ús de noves tècniques, s'ha corroborat que el cervell dels nens afectats pel TDAH és, de mitjana, un 5% més petit que el dels nens de la seva mateixa edat.
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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 | 0.005 | 0.017 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.005 | 0.004 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.023 | 0.003 |
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".