Functional neuroanatomy of visuo-spatial working memory in turner syndrome

Functional neuroanatomy of visuo-spatial working memory in Turner syndrome.

Turner syndrome (TS), a genetic disorder characterized by the absence of an X chromosome in females, has been associated with cognitive and visuo-spatial processing impairments. We utilized functional MRI (fMRI) to investigate the neural substrates that underlie observed deficits in executive functioning and visuo-spatial processing. Eleven females with TS and 14 typically developing females (a...

Functional neuroanatomy of spatial orientation processing in Turner syndrome.

Turner syndrome (TS), a neurogenetic disorder characterized by the absence of one X chromosome in a phenotypic female, is frequently associated with visuospatial impairments. We investigated the neural mechanisms underlying deficits in spatial orientation processing in TS. Thirteen subjects with TS and 13 age-matched typically developing controls underwent neuropsychological assessments and wer...

Visuo-spatial Working Memory

Functional Neuroanatomy of Dynamic Visuo-spatial Imagery

In this chapter, a selective overview of the methods used in this thesis will be provided. This overview does not claim to be comprehensive, since only issues which are directly relevant for the methods employed in the empirical chapters will be discussed. In the following subchapter, the technique of functional magnetic resonance imaging (fMRI) will be presented after a brief description of th...

Functional neuroanatomy of spatial working memory in children.

Functional magnetic resonance imaging (fMRI) was used to examine spatial working memory in 8- to 11-year-old children tested under three conditions. In the visual condition, children were asked to examine the location of a dot on a screen. In the motor condition, children were instructed to push a button that corresponded to the location of a dot presented on a screen. In the memory condition, ...