## Abstract Fragile X syndrome (FXS), caused by a single gene mutation on the X chromosome, offers a unique opportunity for investigation of geneβbrainβbehavior relationships. Recent advances in molecular genetics, human brain imaging, and behavioral studies have started to unravel the complex path
Neuroanatomy of fragile X syndrome: The posterior fossa
β Scribed by Dr Allan L. Reiss; Elizabeth Aylward; Lisa S. Freund; Paramjit K. Joshi; R. Nick Bryan
- Book ID
- 102708524
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 689 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0364-5134
No coin nor oath required. For personal study only.
β¦ Synopsis
The occurrence and specificity of posterior fossa abnormalities as measured from magnetic resonance images of the brain were investigated in a group of 14 males with fragile X syndrome and comparison groups consisting of 17 males with other causes of developmental disability and 18 males with normal IQs. The size of the posterior cerebellar vermis was significantly decreased and the fourth ventricle significantly increased in the group of males with fragile X syndrome compared with males in both comparison groups. These neuroanatomical abnormalities appeared to be secondary to hypoplasia rather than atrophy.
π SIMILAR VOLUMES
Four men with fragile X (fra (X)), or Martin-Bell, syndrome were studied by magnetic resonance imaging (MRI) to determine whether detectable abnormalities of the cerebellum were present. The cerebellum was chosen because of the apparently increased tendency for fra (X) patients to demonstrate autist