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Direct linkMalhotra, Paresh; Coulthard, Elizabeth J.; Husain, Masud – Brain, 2009
Recent models of human posterior parietal cortex (PPC) have variously emphasized its role in spatial perception, visuomotor control or directing attention. However, neuroimaging and lesion studies also suggest that the right PPC might play a special role in maintaining an alert state. Previously, assessments of right-hemisphere patients with…
Descriptors: Patients, Spatial Ability, Brain Hemisphere Functions, Diagnostic Tests
Kogan, Cary S.; Boutet, Isabelle; Cornish, Kim; Zangenehpour, Shahin; Mullen, Kathy T.; Holden, Jeanette J. A.; Kaloustian, Vazken M. Der; Andermann, Eva; Chaudhuri, Avi – Brain, 2004
Fragile X syndrome (FXS) is the most common form of heritable mental retardation, affecting (~ around) 1 in 4000 males. The syndrome arises from expansion of a trinucleotide repeat in the 5'-untranslated region of the fragile X mental retardation 1 ("FMR1") gene, leading to methylation of the promoter sequence and lack of the fragile X mental…
Descriptors: Mental Retardation, Brain, Genetics, Males
