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What happens to lenses? And what is it called?
They become less flexible. Presbyopia.
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What happens to the lenses as they grow old?
They become cloudy, hard to discriminate between colors, and trouble with glare.
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What reaches retina?
Less light.
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Who experiences greater and earlier hearing loss?
Men.
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What are some general things that occur in 40-60's?
less muscle, lower lung capacity, slower metabolism.
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Does reaction time slow down or speed up in 40-60 yrs?
slow down.
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What are type 2 diabetes?
Adult Onset.
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Is death more likely from natual causes?
Yes.
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Is life expectancy increasing?
Yes.
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What type of vision decreases?
Binocular.
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What is the brain loss at 70 yrs?
5%
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What is the brain loss at 90yrs?
20%
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What happens to the blood flow to the brain?
It decreases
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What type of memory decreases?
Short term
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What type of memory is preserved?
Implicit memory (word fragment task)
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What is the major impairment in cognitive functions?
Dementia.
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What is reversible dementia due to?
A Brain Malfunction. It is correctable.
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What is irreversible dementia due to?
Brain Damage.
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What is an example of Dementia?
Alzheimers.
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What is Cortical Atrophy?
Loss of tissue.
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What is reduced at this age?
acetylcholine.
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What are other causes of dementia?
Parkinsons, huntington's, creutzfeldt.
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How is alzheimers diagnosed?
Alzheimers can only be certaintly possible only from autopsy or biopsy.
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Is there a cure for Alzheimers?
No.
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What are proposed causes of Alzheimers?
Gentics (familiad and sporadicad)
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What is familialad?
It runs in the family.
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What is sporadicad?
occurs any time.
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What is Erickson's Last Stage?
Integrity vs. Despair.
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What are monozygotic twins?
They share 100% DNA
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What is Nature?
heredity and maturation
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What is nurture?
parents and society.
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What is continuity?
No stages
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What is discontinuity?
Stages, Think butterfly.
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What did the Learning Theory say?
observe and immitation, aka modeling.
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