ageing and decision making Flashcards
learn
poor decision making due to ?
slow processing speed
reduced working memory capacity
unable to suppress irrelevant content
cognitive reserve?
neural flexibility
cognitive stratagies
moderates negitive influence of brain deterioration in cognitive performance
STAC-r
scaffolding theory of ageing and cognition
what is scaffolding theory
functional changes with aging are part of a lifespan process of compensatory cognitive scaffolding that is an attempt to alleviate the cognitive declines associated with aging
who came up with scaffolding theory
lorenze and parker 2014
positive effects on cogintive domains
executive functioning
memory
language
what does physcial activity lead to
higher cognitive abilities in old age
different aspects of cognition improved
ageing on the brain
gray matter reduces in frontal and parietal regions
neuromodulation theories
changes are driven by neurotransmitter systems
changes in dopamine, seratonin and glutamate systms contribute to changes in decision making
complex processes
processing reward,
estimating value,
uncertainties
using experience to help
decision mechanisms bottom up
ventral tegmental area
amygdala
anterior insula
top down
lateral prefrontal context
posterior parietal context
neurodegeneration?
degeneration of nervous system especially neurons
typically genetic
contributing factors to degredation
mitochondrial mutation
inflation
what happens with neurodegeneration
loss of structure and function of neurons,
cell death no cure
Alzheimer
loss of neurons and synapses in cortical and sub cortical structure
described dementia in 1906
symptoms
memory loss
difficulty thinking
difficulty with porblem solving
language problems
frontotemporal dementia symptoms
personality changes
langauge difficulties
loss of interest in daily activities
weakness
lewy body dementia
abnormal deposits in brain
lewy, causes loss of neurons
acetycholine
dopamine
diagnosis criteria emerged
1990s
neuroplacisity
decline in structure and function of brain with natural ageing
sucsessfull ageing relys on placisity
can placisity be improved
scaffolding theory model, suggests that certain activites can help, meditation or physical activities
neuroplasticity and cognitive ageing
scaffolding theory of aging
goh and park 2009
lorenze and park 2014
what helps scaffolding
brain structure and function
life experiences
current research
spacial navigation varies across lifespan
seahorse hero?
video game
4.3 million ppt
what were the elements to it
- way finding
2.path integration
3.spacial working memory
finding related to ageing
liner decline in spacial ability 19-70
70 spacial ability increased
why increase after 70
selection bias
more cognitive capabilities
