A decade of changes in brain volume and cognition
Journal article
Aljondi, Rowa, Szoeke, Cassandra, Steward, Chris, Yates, Paul and Desmond, Patricia. (2019). A decade of changes in brain volume and cognition. Brain Imaging and Behavior. 13(2), pp. 554-563. https://doi.org/10.1007/s11682-018-9887-z
Authors | Aljondi, Rowa, Szoeke, Cassandra, Steward, Chris, Yates, Paul and Desmond, Patricia |
---|---|
Abstract | Brain atrophy can occur several decades prior to onset of cognitive impairments. However, few longitudinal studies have examined the relationship between brain volume changes and cognition over a long follow-up period in healthy elderly women. In the present study we investigate the relationship between whole brain and hippocampal atrophy rates and longitudinal changes in cognition, including verbal episodic memory and executive function, in older women. We also examine whether baseline brain volume predicts subsequent changes in cognitive performance over a 10-year period. A total of 60 individuals from the population-based Women’s Healthy Ageing Project with a mean age at baseline of 59 years underwent 3T MRI. Of these, 40 women completed follow-up cognitive assessments, 23 of whom had follow-up MRI scans. Linear regression analysis was used to examine the relationship between brain atrophy and changes in verbal episodic memory and executive function over a 10-year period. The results show that baseline measurements of frontal and temporal grey matter volumes predict changes in verbal episodic memory performance, whereas hippocampal volume at baseline is associated with changes in executive function performance over a 10-year period of follow-ups. In addition, higher whole brain and hippocampal atrophy rates are correlated with a decline in verbal episodic memory. These findings indicate that in addition to atrophy rate, smaller regional grey matter volumes even 10 years prior is associated with increased rates of cognitive decline. This study suggests useful neuroimaging biomarkers for the prediction of cognitive decline in healthy elderly women. |
Keywords | normal aging; elderly women; brain atrophy; hippocampal atrophy; episodic memory; executive function |
Year | 2019 |
Journal | Brain Imaging and Behavior |
Journal citation | 13 (2), pp. 554-563 |
Publisher | Springer |
ISSN | 1931-7557 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11682-018-9887-z |
Scopus EID | 2-s2.0-85046672516 |
Research or scholarly | Research |
Page range | 554-563 |
Funder | National Health and Medical Research Council (NHMRC) |
Publisher's version | License All rights reserved File Access Level Controlled |
Output status | Published |
Publication dates | |
Online | 09 May 2018 |
Publication process dates | |
Deposited | 12 May 2021 |
Grant ID | NHMRC/547500 |
NHMRC/1032350 | |
NHMRC/1062133 |
https://acuresearchbank.acu.edu.au/item/8w07y/a-decade-of-changes-in-brain-volume-and-cognition
Restricted files
Publisher's version
96
total views0
total downloads1
views this month0
downloads this month