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

Allen, Harriet A.; Payne, Helen

Authors

Harriet A. Allen

Helen Payne

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

Journal Article Type Article
Publication Date Feb 15, 2012
Journal NeuroImage
Print ISSN 1053-8119
Electronic ISSN 1053-8119
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 59
Issue 4
Institution Citation Allen, H. A., & Payne, H. (2012). Similar behaviour, different brain patterns: age-related changes in neural signatures of ignoring. NeuroImage, 59(4), doi:10.1016/j.neuroimage.2011.10.070
DOI https://doi.org/10.1016/j.neuroimage.2011.10.070
Publisher URL http://ac.els-cdn.com/S1053811911012341/1-s2.0-S1053811911012341-main.pdf?_tid=c6bdfc70-bb1d-11e3-aae7-00000aacb362&acdnat=1396522411_3c106ec7427fa8c57548dd7203ae35eb
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0




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