Journal article
Cognitive Reserve and Brain Reserve in Prodromal Huntington's Disease
Journal of the International Neuropsychological Society, Vol.19(7), pp.739-750
08/2013
DOI: 10.1017/S1355617713000507
PMID: 23702309
Abstract
Huntington disease (HD) is associated with decline in cognition and progressive morphological changes in brain structures. Cognitive reserve may represent a mechanism by which disease-related decline may be delayed or slowed. The current study examined the relationship between cognitive reserve and longitudinal change in cognitive functioning and brain volumes among prodromal (gene expansion-positive) HD individuals. Participants were genetically confirmed individuals with prodromal HD enrolled in the PREDICT-HD study. Cognitive reserve was computed as the composite of performance on a lexical task estimating premorbid intellectual level, occupational status, and years of education. Linear mixed effects regression (LMER) was used to examine longitudinal changes on four cognitive measures and three brain volumes over approximately 6 years. Higher cognitive reserve was significantly associated with a slower rate of change on one cognitive measure (Trail Making Test, Part B) and slower rate of volume loss in two brain structures (caudate, putamen) for those estimated to be closest to motor disease onset. This relationship was not observed among those estimated to be further from motor disease onset. Our findings demonstrate a relationship between cognitive reserve and both a measure of executive functioning and integrity of certain brain structures in prodromal HD individuals. (JINS, 2013, 19, 1–12).
Details
- Title: Subtitle
- Cognitive Reserve and Brain Reserve in Prodromal Huntington's Disease
- Creators
- Aaron Bonner-Jackson - 1Cleveland Clinic, Cleveland, OhioJeffrey D Long - 2University of Iowa, Iowa City, IowaHolly Westervelt - 3Rhode Island Hospital, Providence, Rhode IslandGeoffrey Tremont - 3Rhode Island Hospital, Providence, Rhode IslandElizabeth Aylward - 5Seattle Children's Research Institute, Seattle, WashingtonJane S Paulsen - 2University of Iowa, Iowa City, IowaPREDICT-HD Investigators and Coordinators of the Huntington Study Group
- Resource Type
- Journal article
- Publication Details
- Journal of the International Neuropsychological Society, Vol.19(7), pp.739-750
- DOI
- 10.1017/S1355617713000507
- PMID
- 23702309
- NLM abbreviation
- J Int Neuropsychol Soc
- ISSN
- 1355-6177
- eISSN
- 1469-7661
- Publisher
- Cambridge University Press; New York, USA
- Number of pages
- 12
- Alternative title
- Cognitive brain reserve in Huntington disease
- Language
- English
- Date published
- 08/2013
- Academic Unit
- Psychiatry; Psychological and Brain Sciences; Biostatistics
- Record Identifier
- 9984003936302771
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