Similar behaviour, different brain patterns: age-related changes in neural signatures of ignoring

Allen, Harriet A.; Payne, Helen

Abstract

We measured behavioural performance and fMRI activity whilst old and young adults performed a temporal
segmentation task (‘preview search’). Being able to select parts of the visual world to be attended or ignored
is a critical visual skill. Both old and young adults were able to improve their performance on a difficult search
task when some of the distracter items were presented earlier than the remainder. Comparisons of brain
activity and functional connectivity, however, suggested that the underlying mechanisms are quite different
for the two age groups. Older adults' activation patterns do not correspond to those predicted by simple
increased involvement of frontal regions reflecting higher demand with age but seem to suggest that changes
in brain activation patterns propagate throughout the cortex

Citation

Allen, H. A., & Payne, H. (2012). Similar behaviour, different brain patterns: age-related changes in neural signatures of ignoring. NeuroImage, 59(4), https://doi.org/10.1016/j.neuroimage.2011.10.070

• Journal Article Type: Article
• Publication Date: Feb 15, 2012
• Deposit Date: Apr 3, 2014
• Publicly Available Date: Apr 3, 2014
• Journal: NeuroImage
• Print ISSN: 1053-8119
• Electronic ISSN: 1053-8119
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 59
• Issue: 4
• DOI: https://doi.org/10.1016/j.neuroimage.2011.10.070
• Public URL: https://nottingham-repository.worktribe.com/output/709383
• Publisher URL: http://ac.els-cdn.com/S1053811911012341/1-s2.0-S1053811911012341-main.pdf?_tid=c6bdfc70-bb1d-11e3-aae7-00000aacb362&acdnat=1396522411_3c106ec7427fa8c57548dd7203ae35eb