Age differences in brain activity during perceptual versus reflective attention
Aged, 80 and over
Male
Aging
Brain
Recognition, Psychology
Middle Aged
Neuropsychological Tests
Hippocampus
Magnetic Resonance Imaging
3. Good health
Facial Expression
03 medical and health sciences
0302 clinical medicine
Pattern Recognition, Visual
Image Processing, Computer-Assisted
Reaction Time
Humans
Attention
Female
Photic Stimulation
Psychomotor Performance
Aged
DOI:
10.1097/wnr.0b013e32833730d6
Publication Date:
2010-02-09T06:53:14Z
AUTHORS (4)
ABSTRACT
This functional magnetic resonance imaging study presented participants with a face and scene simultaneously on each trial, and assessed the impact of perceptual versus reflective selective attention on activity in parahippocampal place area. Young and older adults showed equivalent activation in parahippocampal place area when cued to attend to the scene when the stimuli were perceptually present and when cued to refresh (briefly think about) the scene after the stimuli were no longer present. The groups also showed equivalent deactivation when cued to attend to the face when the stimuli were perceptually present. However, older adults showed less deactivation than young adults when cued to refresh the face, providing evidence for greater age-related disruption of reflective than perceptual selective attention.
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