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Cognitive control
Cognitive control
Model of CC by braver and barch
cognitive control
dependent on internal representation, maintenance and updating of
context information
Brain
DLPFC
Dopamine
Computational model
Context processing
by DLPFC
3 critical features
feedback to direct pathwayy
active maintainance of info
strong recurrent connectivity in context layer
Attention memory inhibition
Normal aging
Paradigm
AX-CPT
Old
dont react as much to AY
React more to BX
Long interval
old
more BX, less AY
Young
better at this task
Negative priming
Hasher
2 condition
B
longer reaction times
Experiment 2
A
Experiment 1
Control condition
No carry over in old
defect in inhibition
selective attention
Inhibitory defecity hypothesis
Results
older people slower and more mistakes, but no differences between 2 conditions
Carry over effect
Conneleni
Older less able to inhibit irrelevant info
Age differences in activation
Cabeza
Harold model
Hemispheric asymmetry reduction in older adults
Explanations
compensation
changes related to better performance
dedifferentiation
More correlation of activity between cognitive and sensory
Origin
Psychogenic view
Neurogenic view
Posterior anterior shift
Davis
PASA
Related to cognitive performance