Journal article
Trajectories of irregular word reading ability as a proxy for premorbid intelligence in Alzheimer’s disease, mild cognitive impairment, and healthy aging: A longitudinal study
Psychological Assessment, Vol.30(10), pp.1308-1316
2018
Abstract
The ability to read irregularly spelled words is commonly used to estimate premorbid intelligence, as this ability has been thought to be resistant to early effects of neurodegenerative disorders. However, studies evaluating decline of this skill in Alzheimer’s disease (AD) have produced conflicting results. Irregular word reading was assessed three times over 36 months in a large (N = 995) sample, including healthy control, AD, and Mild Cognitive Impairment (MCI) groups. At baseline, MCI and AD groups read correctly an average of 3.01 and 7.39 fewer words, respectively, than healthy controls. The MCI group’s performance remained stable during the study, but the AD group declined. Importantly, the observed decline was likely an underestimate, as significant numbers of the AD participants (42.6%) could not complete the task at follow-up. Use of alternate (e.g., demographics-based) methods is advised to augment or replace word pronunciation in estimating premorbid intelligence in individuals with even mild AD.
Details
- Title
- Trajectories of irregular word reading ability as a proxy for premorbid intelligence in Alzheimer’s disease, mild cognitive impairment, and healthy aging: A longitudinal study
- Authors/Creators
- M. Weinborn (Author/Creator)R.S. Bucks (Author/Creator)H.R. Sohrabi (Author/Creator)S.R. Rainey-Smith (Author/Creator)B.M. Brown (Author/Creator)S.L. Gardener (Author/Creator)A. Gozt (Author/Creator)D. Christensen (Author/Creator)G. Savage (Author/Creator)S.M. Laws (Author/Creator)K. Taddei (Author/Creator)P. Maruff (Author/Creator)J.S. Robertson (Author/Creator)K.A. Ellis (Author/Creator)D. Ames (Author/Creator)C.L. Masters (Author/Creator)C.C. Rowe (Author/Creator)R.N. Martins (Author/Creator)
- Publication Details
- Psychological Assessment, Vol.30(10), pp.1308-1316
- Publisher
- American Psychological Association
- Identifiers
- 991005545521307891
- Copyright
- © 2018 American Psychological Association
- Murdoch Affiliation
- School of Psychology and Exercise Science
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
27 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Industry collaboration
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.52 Neurodegenerative Diseases
- 1.52.60 Dementia
- Web Of Science research areas
- Psychology, Clinical
- ESI research areas
- Psychiatry/Psychology