Brain-wide white matter tract integrity is associated with information processing speed and general intelligence
نویسندگان
چکیده
منابع مشابه
A general factor of brain white matter integrity predicts information processing speed in healthy older people.
Human white matter integrity has been related to information processing speed, but it is unknown whether impaired integrity results from localized processes or is a general property shared across white matter tracts. Based on diffusion MRI scans of 132 healthy individuals with a narrow age range around 72 years, the integrity of eight major white matter tracts was quantified using probabilistic...
متن کاملgeneral intelligence or speed of information processing?
at the beginning of the present century, problems such as education of mentally retarded children, classification and placement of job applicants in industrial and military organizations, and students selection, gave impetus to the development of intelligence tests and the formulation of theories of intelligence. for many years factorial theories of intelligence dominated the field, but piaget&...
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It is well known that brain structures correlate with intelligence but the association between the integrity of brain white matter tracts and intelligence in patients with mental retardation (MR) and healthy adults remains unknown. The aims of this study are to investigate whether the integrity of corpus callosum (CC), cingulum, uncinate fasciculus (UF), optic radiation (OR) and corticospinal t...
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Cognitive impairment is an inevitable feature of CADASIL, affecting executive function, attention and processing speed from an early stage. Impairment is associated with structural markers such as lacunes, but associations with functional connectivity have not yet been reported. Twenty-two adults with genetically-confirmed CADASIL (11 male; aged 49.8±11.2 years) underwent fMRI at rest. Intrinsi...
متن کاملCardiorespiratory fitness is associated with white matter integrity in aging
OBJECTIVE Aging is associated with reduced neural integrity, yet there are remarkable individual differences in brain health among older adults (OA). One factor that may attenuate age-related neural decline is cardiorespiratory fitness (CRF). The primary aim of this study was to link CRF to neural white matter microstructure using diffusion tensor imaging in OA. METHODS Young adults (YA; n = ...
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ژورنال
عنوان ژورنال: Molecular Psychiatry
سال: 2012
ISSN: 1359-4184,1476-5578
DOI: 10.1038/mp.2012.127