The Link Between Cerebellar Dominance and Skilled Hand Performance in 8–10-Year-Old Right-Handed Children
Why this work is in the frame
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Bibliographic record
Abstract
Although literature surrounding handedness and cerebellar asymmetry is limited, many researchers have suggested that a relationship exists (e.g., A. A. Beaton, 2003 Beaton, A. A. (2003). The determinants of handedness. In K. Hugdahl & R. J. Davidson (Eds.), Brain asymmetry (2nd ed., pp. 105–158). Cambridge, MA: Routledge. [Google Scholar]; L. Jäncke, K. Specht, S. Mirzazade, & M. Peters, 1999 Jäncke, L., Specht, K., Mirzazade, S., & Peters, M. (1999). The effect of finger-movement speed of the dominant and the subdominant hand on cerebellar activation: A functional magnetic resonance imaging study. NeuroImage, 9, 497–507.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; I. C. McManus & K. M. Cornish, 1997 McManus, I. C., & Cornish, K. M. (1997). Commentary fractionating handedness in mental retardation: What is the role of the cerebellum? Laterality, 2, 81–90.[Taylor & Francis Online] , [Google Scholar]; M. Peters, 1995 Peters, M. (1995). Handedness and its relation to other indices of cerebral lateralization. In R. J. Davidson & K. Hugdahl (Eds.), Brain asymmetry (pp. 183–214). Cambridge, MA: Routledge. [Google Scholar]; P. J. Snyder, R. M. Bilder, H. Wu, B. Bogerts, & J. A. Lieberman, 1995 Snyder, P. J., Bilder, R. M., Wu, H., Bogerts, B., & Lieberman, J. A. (1995). Cerebellar volume asymmetries are related to handedness: A quantitative MRI study. Neuropsychologia, 33, 407–419.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). For example, J. Tichy and J. Belacek (2008 Tichy, J., & Belacek, J. (2008). Right-lefthandedness and crossed foot preference. Testing of laterality and cerebellar dominance. Ceska a Slovenska neurologie a neurochirurgie, 71, 552–558.[Web of Science ®] , [Google Scholar], 2009 Tichy, J., & Belacek, J. (2009). Laterality in children: Cerebellar dominance, handedness, footedness and hair whorl. Activitas Nervosa Superior Rediviva, 51(1–2), 9–20. [Google Scholar]) identified a link between cerebellar dominance and hand preference. The authors aimed to assess the relationship between cerebellar dominance and handedness, in 8–10-year-olds (N = 157 right-handers) as assessed with hand performance tests. Articular joint passivity in the wrist and performance differences between the hands were used as a means of assessing cerebellar dominance, where a link to skilled hand performance tests was revealed. Specifically, significant correlations between articular joint passivity and all measurements of handedness (p < .001) were observed. Greater hypotonia was seen in the left wrist of 95% of right-handers. This result supports the assumption that the preferred and nonpreferred hand could be controlled by the cerebellum in a different ways.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.000 | 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