Cognitive and psychiatric variability in three brothers with fragile X syndrome.
Three brothers were determined to have the fragile X syndrome. While sharing physical characteristics, their developmental and behavioral characteristics were diverse, as was the severity of the disorder. Each brother had evidence of developmental problems but demonstrated heterogeneity of presentation in the same sibship.
D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity / Q000209:etiology; D001321:Autistic Disorder / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D005600:Fragile X Syndrome / Q000150:complications / Q000235:genetics / Q000523:psychology*; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology; D008297:Male; D010375:Pedigree; D012729:Sex Chromosome Aberrations / Q000523:psychology*