Psych of Aging and Cellular, PA stuff, etc Flashcards

1
Q

memory

A

the recall of info after learning takes place

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2
Q

sensory memory

A

info perceived through the senses and stored as memory

- like an ultra short term memory 2000-5000ms

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3
Q

short term memory

A

where info is stored temporarily while it’s being processed or for a short time afterward

  • a facet of working memory just for storage
  • can store 7+/- 2 items here
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4
Q

working memory

A

where recent acquired info is temporarily retrieved and manipulated

  • used w STM but is more about framework
  • older people show deficits in working memory
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5
Q

long term memory

A

the storehouse of knowledge that also includes the rules for applying knowledge

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6
Q

strategies for transferring info from STM to LTM

A

repetition, chunking, acronyms, mnemonics

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7
Q

non episodic memory

A

aka semantic memory

- info w no reference to the time at which it was acquired ex. general knowledge of the world

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8
Q

episodic memory

A

memory acquired at a specific time and place
you can kind of see where you were with the memory
- shows greater decline with age than other types of memory

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9
Q

encoding

A

the process whereby a person puts new bits of info together with already stored info
- older people show a slower speed of encoding

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10
Q

latency

A

the length of time it takes a person to process info or respond to a question

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11
Q

in terms of latency, older people take longer to _ _ _

A
  • learn new info
  • search for it in memory
  • use it when they need it
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12
Q

the contextual view of memory

A

states that many conditions influence memory incl psychological, physical and social contexts, also abilities of the individual and characteristics about what a subject is asked to remember
- literally memory depends on a lot of stuff

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13
Q

limits of lab research on memory

A
  • factors other than age can influence studies
  • test conditions can influence the results
  • stereotype threat for older people
  • design flaws
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14
Q

stereotype threat

A

an older person’s fear of failure on memory test which leads to poor performance
- you think you’re supposed to do poorly so do you do do poorly

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15
Q

the brain shrinks and gains abnormalities as we age. what are some of these?

A
  • changes in physiology of the brain (age 30)
  • loss of brain structure: loss of gray and white matter leads to decline in mental function
  • neural pruning: cutting down pathways in the brain that aren’t useful
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16
Q

intelligence

A

the ability to negotiate environmental demands successfully or that which intelligence tests measure

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17
Q

fluid intelligence

A

reasoning, abstracting, concept formation, problem solving with little use for knowledge gained through reading, schooling or work

    • used for spatial thinking and reasoning
  • declines with age as we struggle to understand new and complex things
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18
Q

crystallized intelligence

A

depends on stored info, accumulation and learning (numerical and verbal skills)
- may improve with age because is based on more experiences

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19
Q

how are learning and memory linked?

A

they’re both used for the retrieval of info

  • older adults can learn new skills, ideas and concepts
  • takes older adults longer to search for info, code, recall and respond
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20
Q

plasticity

A

the brain’s ability to change and adapt over time

  • neurons remain healthy until you die and the body preserves and generates new brain cells
  • this protects the person from the decline due to aging from diseases of the brain
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21
Q

cognitive reserve

A

exceptional ental performance usually when a person has to work at max mental capacity
- first observed in cognitively impaired people who performed better than expected in everyday life

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22
Q

can the mind be trained for better performance?

A

the brain needs stimulation and challenge

  • sensory-motor training can lead to significant improvement in mental function
    ex. playing piano
    • physical activity is even better
23
Q

are older people creative?

A

sure they are; this depends on how it’s measured defined and what not
- creativity benefits the health, life satisfaction of older adults and can be good because it leads to social engagement

24
Q

life-span developmental perspective

A
  • sees individual as continually changing from birth to death with no end point or goal
  • a dialectal process: interaction of individual with society leads to varied patterns of aging
25
Q

personality and development of the self

A

stage theories: assumptions that an individuals’s personalities dev’p through distinct stages
- the stage theories are maybe a bit too simple for today’s society

26
Q

maximum lifespan

A

the max number of years a member of a species can live

  • is reflective of survival potential of a population
  • for humans is said to be about 125
27
Q

life expectancy

A

the number of years at birth an average member of a population can expect to live
- this can also be said from other stages in life, not just from birth

28
Q

theories as to why women live longer

A

genetics theory
hormonal theory
social explanations
- also not dying from childbirth anymore

29
Q

genetics theory

A

explains why women live longer
being XX vs XY allows women to have an extra set of some chromosomes that men don’t
- also the idea that Y chromosome could code for something that decreases longer life potential

30
Q

hormonal theory

A

explains why women live longer
discusses the protective effects of estrogen
- maybe negative effects of testosterone
evidence of this: castrated males lived longer than non-castrated men

31
Q

social explanations as to why women live longer

A
  • different social roles b/w women and men
  • diff habits such as smoking and alc consumption
  • makes take more risks
32
Q

intrinsic aging

A

changes w/in the body due to normal wear and tear, genetic mutation and other internal sources of change
- incl a decrease in lung capacity, hardening of arteries and arthritis

33
Q

extrinsic aging

A

changes due to external circumstances

- incl effects of smoking, sunlight, noise and lifestyle

34
Q

programmed theories of aging

A

genetic theories

cellular senescence

35
Q

genetic theories of aging

A

falls under programmed theories of aging

  • the idea of a pre-programmed biological clock in each cell; determined by your genetics
    ie. if your parents lived a long life, you probably will too
36
Q

cellular senescence theory of aging

A

falls under programmed theories of aging

  • a cell can only undergo a predetermined number of divisions before it dies. this is called the hayflick limit
  • this is supported by telomeres that generally disappear after so many cell divisions and the cells lose their ability to divide
37
Q

error theories of aging

A

waste accumulation
somatic mutation theory
cross-linking theory
free-radicals theory

38
Q

waste accumulation theory of aging

A

a buildup of intracellular debris eventually impairs cellular function
example of the debris is LIPOFUSCIN : causes age spots

39
Q

somatic mutation theory of aging

A

pollutants cause mutations to your cells, that result in their lack of function or death

40
Q

cross-linking theory of aging

A

cells get less resilient as they age

41
Q

free radicals theory of aging

A

normal byproducts of metabolism produced can damage cell membranes, DNA, etc

42
Q

metabolic theory of aging

A

caloric restriction has been shown to increase lifespan by up to 50% in lab animals
- body thinks its starving so it slows metabolic rate and it decreases heart degradation, atherosclerosis, and tumor dev’t, etc

43
Q

sarcopenia

A

age associated w a decrease in muscle mass and quality

44
Q

when do we hit peak bone mass?

A

at age 35 and we start going down from there

45
Q

how many categories of dementia are there

A

over 110

46
Q

what is the most common type of dementia?

A

alzheimer’s

47
Q

major symptoms of dementia

A
  1. loss or decrease in short term memory
  2. changes in behaviour and personality
  3. decrease in judgement and understanding of env’t
  4. difficulties w speech (oth understanding and producing lang)
48
Q

what is the highest risk factor for dementia?

A

age

being over 65

49
Q

irreversible dementia

A
  1. affects 2 or more areas of the brain
  2. progressive
  3. chronic
  4. terminal - die from this disease
50
Q

how does dementia begin physiologically

A

it starts at the hippocampus and the brain shrinks to half its size
2 ways:
- abnormal production of a normal protein (beta amyloid protein fragments called plaques) sit in synapses and cause problems
- dead and dying nerve cells called tangles or twisted strands take out new files and leave old ones there

51
Q

5 most common types of dementia

A
  • frontotemporal dementia
  • Lewy body dementia (LBD)
  • vascular dementia : TIAs
  • mixed dementia: 2+ types at once
  • Alzheimer’s disease
52
Q

3 stages of Alzheimer’s disease

A

early: light changes and impairments
middle: greater decline in cognitive and functional ability
late: 24 hr care req’d, unable to communicate

53
Q

reasons for odd behaviour in dementia patients are often the result of:

A
  • expressing an unmet need
  • form of communication
  • env’t
  • triggered by approach
54
Q

risk factors for dementia

A

uncontrollable: age, genetics (5% of cases), sex (way more females w T2D)
controllable: CVD, having a higher education