Chapter 8: Adult and Aging Brain Flashcards
1
Q
What types of memories decline with age?
A
- Declarative (explicit memories / episodic and semantic memory)
- Working memory
2
Q
What type of memory does not decline with age?
A
Nondeclarative / implicit memory
3
Q
What happens to neurons as a result of ageing?
A
Degenerate and shrink
4
Q
What happens to myelin as a result of ageing?
A
Declines
5
Q
What happens to the cerebral cortex as a result of ageing?
A
Thins
6
Q
Which lobes decline the most?
A
Frontal and temporal lobes
7
Q
Which lobes decline the most?
A
Frontal and temporal lobes
8
Q
What happens to neurotransmitters and receptors as a result of ageing?
A
Neurotransmitters and receptors: decline
9
Q
What is accumulated because of free radicals and oxidative stress?
A
Mitochondrial DNA
10
Q
What gets more reactive as we age?
A
Microglia (brain immune system)
11
Q
Why does working memory degrades over time?
A
- Neuronal connections / myelination / neurotransmitters degrade over time
- High plasticity regions
