UNIT 4 TEST Flashcards
Life expectancy
The number of years the average person born in a particular year will probably live (ex. 2018 = 78.6yrs)
- Improved with science advances, also substantial reduction in infant deaths
Brain loses ____% of its weight between ages 20 + 90
5-10%
What is effected when the brain shrinks??????
-Shrinkage of neurons
-Lower numbers of synapses
-Reduced length and complexity of axons
-reduced tree-like branching in dendrites
Dendrites
receiving portion of the neuron
What causes lack of dendritic growth in older adults??????
lack of environmental stimulation and activity
Presbyopia
Age-related difficulties with seeing close objects
-Universal changes that happens in mid-life
-often reason for reading glasses
Poorer dark vision
cannot see as well in dimly lit places
Troubles with glare
Being blinded by bright light shinning in eye
Color vision
Diminishes because the lens of the eye begin to yellow
Depth perception
declines with age
Visual decline + social contact
Decline in vision can lead to less social interactions because leisure activities become challenging
cateracts
The thickening of eye’s lens causes vision to become cloudy, opaque, and distorted
Glaucoma
Damage to the optic nerve because of pressure created by fluid buildup in the eye
macular degeneration
deterioration of the retina’s macula, which corresponds to focal center of the visual field
Vision interventions
-strong indirect lighting
-Avoid fluorescent lighting
-Use adjustable lighting
-Look into low-vision aids
-explore books on tape
Why hearing loss is bad
-Limits the ability to connect with the human world through language
what devices help hearing loss
Hearing aids and cochlear implants
Hearing loss statistics
-One in three older adults suffers from hearing loss
-men are more likely to develop hearing loss - because of exposure to loud noises
-problems increase because of technology oriented culture
presbycusis
The characteristic age-related hearing loss
-condition is permanent
-background noise overpower the sounds people want to hear
-Hearing aids usually don’t help
What causes presbycusis??
Atrophy of hearing receptors in the inner ear
Hearing loss intervention
-Avoid high-noise environments
-install carpet in house
-replace noisy appliances
-avoid elderly speek
elderly speak
Speaking loudly and with slow, exaggerating pronunciation
Smell and Taste
Loss begins around age 60 and is significantly noticeably around 80
Touch and Pain
-with aging, many have impaired toud(detecting less in lower extremities)
-60-70% of older adults have some form of persistent pain
-older adults are less sensitive to pain
Slowness
Primary motor ability change
Primary motor ability change caused by…
Loss in information-processing speed
Primary motor ability changes and society
-Why older adults experience prejudices
-people become annoyed with older peoples slowness
EX. Slow driving
Asian care for elderly
turning into Western society model
Scandinavian countries
positive models for elderly people
-Family members take primary care of elderly
-Government provides home health services
-money provided to remodel homes
-presence of multigenerational villages
Dementia
A global term for several neurological disorders involving irreversible decline in mental function severe enough to interfere with daily living
Alzheimer accounts for how much of dementias?
60-80%
Seconds most frequent dementia?
Vascular
does activity lower rates of dementia?(yes/no)
Yes
Understanding dementia
Involves the total erosion of personhood; complete unraveling of inner self
What illnesses cause dementias in younger adults
Brain injury or illnesses like aids
Dementia effects what age?
Mostly oldest old
Dementia symptoms
-Forget episodic info (core facts about their life)
-impairment in executive functions (inhibits one’s actions)
-Thinking is affected (abstract, decisions, judgement)
-Language is compromised
-Loss of all functions (speaking, moving, and even swallowing)
Vascular Dementia
A type of dementia caused by multiple small strokes called trans ischemic attacks; these strokes affect blood flow which then causes cumulative damage.
Alzheimer’s Diesease
A progressive, irreversible brain disorder characterized by gradual deterioration of memory, reasoning language and eventually physical function.
Alzheimer statistics
-Sixth leading cause of death in USA
-1 in 10 individuals 65 or older have alzheimer’s
-Twice as many african americans and one and one-half times as many latinos have alzheimer’s
-two thirds of those with Alzheimer disease in the U.S.A. are women
Causes of Alzheimer Disease
-deficiency in acetylcholine (plays important role in memory)
-As neurons decay, formation of amyloid/senile plaques
-Oxidative stress and mitochondrial dysfunction
-Age
-Cardiac risk factors
Alzheimer Disease and Genetics
Apolipoprotein( ApoE) gene increases presence of plaques and tangles in brain
ApoE is most common gene associated with _________ alzheimer disease
late-onset
Genes affect the ______ aspect if the disease
risk factors associated with alzheimer’s
Young-onset Alzheimer disease (early-onset)
Affects a very small percentage of people, where symptoms appear between ages 30-60
What genes are strongly linked with young onset alzhiemers?
APP, PSEN1, and PSEN2
Mild cognitive impairment(MCI)
represents a transitional state between the cognitive changes of normal aging and very early Alzheimer disease and other dementias
What scan can show dementia??
fMRI
Diagnosing Alzhiemer’s (steps)
- Looks for history of steady mental deteriorations
- Rule out other physical + psychological causes
- Explore performance on a battery of neuropsychological tests
Treatment for Alzheimer
No true cure, but certain drugs, diet, exercise and mental stimulation can slow down progression
Treatment for Alzheimer
No true cure, but certain drugs, diet, exercise and mental stimulation can slow down progression
Dealing W/ Alzheimer’s
Improving environment is key!!!!!!
-external aids to make life safe (notes like “don’t leave stove on, a bell to notify people when the person has walked out the door, etc)
Issues for care gives or patients w/ Dementias
-witnessing lives ones deterioate is unfamiliar to most
-Loved ones can become abusive
-Stress and depression
-Embarrassment or guilt
-Parent + childs roles flip