Journal
NEUROSCIENCE LETTERS
Volume 742, Issue -, Pages -Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2020.135549
Keywords
Corpus callosum; Splenium; Diffusion tensor imaging; Ageing
Categories
Funding
- Alzheimer's Research UK (ARUK) [ARUK-PPG2014A-19]
Ask authors/readers for more resources
The splenium in the posterior region of the corpus callosum is relatively preserved during normal aging, but the impact of age on its distinct interhemispheric tract bundles is largely unknown. Diffusion tensor imaging was used to examine these segregations, and results showed selective alterations in older age, with occipital tracts preserved but parietal and temporal segments impaired.
It is well established that the posterior region of the corpus callosum, known as the splenium, is relatively preserved during the course of normal ageing. However, the effect of age on its distinct interhemispheric tract bundles that project to bilateral occipital, parietal and temporal areas of the cortex, is largely unknown. In the present study, diffusion tensor imaging was used to directly examine the integrity of these distinct segregations and their diffusion metrics were compared between groups of young adults (n = 20, mean age = 30.75) and older adults (n = 19, mean age = 80.21). Results revealed that while occipital tracts were preserved in older adults, parietal and temporal segments were particularly impaired. These findings are the first to indicate the existence of selective alterations in the posterior region of the corpus callosum in older age.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available