Mark A. Eckert
Anatomical correlates of dyslexia: frontal and cerebellar findings
University of Florida
study examined neuroanatomy dyslexic 14 males four females control 19 males 13 females children grades 46 family genetics study dyslexics specific deficits word reading relative population mean verbal iq primary language motor deficits measurements posterior temporal lobe inferior frontal gyrus cerebellum whole brain collected mri scans dyslexics exhibited significantly smaller right anterior lobes cerebellum pars triangularis bilaterally brain volume measures right cerebellar anterior lobe left right pars triangularis correctly classified 72 dyslexic subjects 94 rapid automatic naming deficit 88 controls cerebellar anterior lobe pars triangularis made significant contributions classification subjects controlling brain volume correlational analyses showed neuroanatomical measurements also significantly correlated reading spelling language measures related dyslexia age related anatomical variable results dyslexic children family genetics study discussed reference dyslexic adults prior study ascertained basis discrepancy phonological coding reading comprehension volume right anterior lobe cerebellum distinguished dyslexic control participants studies cerebellum one consistent locations structural differences dyslexic control participants imaging studies study may first show anomalies cerebellarfrontal circuit associated rapid automatic naming doubledeficit subtype dyslexia