Similar behaviour, different brain patterns: age-related changes in neural signatures of ignoring
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 per...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2012
|
| Online Access: | https://eprints.nottingham.ac.uk/2540/ |
| Summary: | 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 |
|---|