Memory decline over the lifespan Flashcards
Is some deterioration of memory due to ageing nautral?
Yes
Is memory decline due to ageing inevitable?
NO
Describe the effect of ageing on short term memory.
Impaired ability to perform COMPLEX tasks (involving simultaneous storing and manipulating info in working memory/divided attention )
Describe the effect of ageing on episodic memory
Memory is relatively stable until middle age (30-50) and then rapidly declines.
Describe the effect of ageing on semantic memory
Fairly resistant to ageing, BUT
o However takes longer to learn new information;
o New information is not encoded with as much detail or precision as younger people;
o Speed and fluency of retrieval declines.
o Note: maintenance of info in STM retrieval from LTM is not affected is the information is well-learned and practised.
Describe the effect of ageing on procedural memories
Hardly any decline; but it takes longer to learn new skills
4 explainations for memory changes due to age?
- Lack of motivation.
- Lowered confidence in memory
- Inappropriate measures of retention
- Slowing of CNS functioning.
Effect of old age on the RECALL of information
It decreases
EFfect of old age on the RECOGNITION of information?
Remains relatively stable between young and old people.
What can slowing of the CNS cause?
Cognitive slowing - affects working memory
Define: cognitive slowing
Taking longer to mentally process information
What can cognitive slowing be explained by?
Size of frontal lobe reducing
Does memory depend on the activity of frontal lobe?
Yes; elderly people with more active frontal lobes had better memories than those with less active
