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103 Cards in this Set

  • Front
  • Back
What are the ages of people who are old, young-old, old-old, oldest-old?
Old - 65 years and older
Young-old - 65 to 74
Old-old - 75 to 84
Oldest-old - 85 years and older
Who experiences negative emotions more, the elderly 60 years and older, or young people aged 18 to 30 years?
Elderly
What difference in reactions do the elderly have to negative and positive stimuli
less reactive to negative and more reactive to positive than younger people
Do older people seek more interactions with more people or more intimate interactions with fewer people? What is the term used to describe this phenomenon?
More intimate interactions with fewer people

Social Selectivity
Do older more have less interest and capacity to have sex?
No
What percentage of the elderly have at least one major medical condition?
80%
What happens to the quality and depth of sleep as people age?
it declines
By age 65 what percentage of people report insomnia?
25%
What are the two main causes of insomnia in the elderly?
1. medication side effects
2. pain
Do the rates of sleep apnea increase of decrease with age?
increase
What type of treatment has been found to reduce insomnia in the elderly?
psychological treatment
Prescribing multiple drugs to a person is called what?
polypharmacy
How many medications are prescribed to at least one third of elderly people?
5 or more
Polypharmacy increase the risk of adverse drug reactions which results in what three things?
numerous side effects, toxicity, and allergic reactions
What is the main reasons that toxicity and side effects are more common in elderly who take psychoactive drugs?
because these drugs are mostly tested on younger people and gauging the appropriate dose for lower kidney and liver metabolisms in the elderly is difficult
What is the longest running study of ageing?
Baltimore Longitudinal Study of Ageing
What is called when people are no longer available for follow-up research because of death?
selective mortality
What is least prevalent in people 65 years or older?
mental disorders
What is delirium?
a disturbance of consciousness and a change in cognition that develop over a short period of time
What is dementia?
multiple cognitiive deficits that include impairment in memory
What are the three main methodical issues that could help explain the low prevalence of mental disorders in the elderly?
1. Selective Mortality
2. Response Bias
3. Cohort Effects
Describe six main differences between dementia and delirium?
1. Dementia develops over years where delirium is rapid onset
2. Dementia changes in memory where delirium they have trouble concentrating
3. Dementia not explained by another medical condition where delirium is secondary to another medical condition
4. Dementia is progressive and non reversible where delirium fluctuates over the course of a day
5. Dementia cannot be treated where delirium is reversible
6. Dementia risk increases with age where delirium does not
Define dementia?
A deterioration of cognitive abilities such that social and/or occupational functions are impaired
What is a major risk factor for dementia?
Mild cognitive impairment
What are the three stages of progression in dementia?
1. Stage 1 - Mild
2. Stage 2 - Moderate
3. Stage 3 - Sever
What symptoms present in Stage 1 Dementia?
Difficulty remembering things
Forgetting simple things
Forgetting words for items
Awareness of memory lapses
Mood swings
What symptoms present in Stage 2 Dementia?
More sever memory impairment
Asking repetitive questions
Difficulty in every day life
Become Messy
Social withdrawal
Recite past often
Personality changes
Inability to recognise familiar people
Socially withdrawn
Sleep disturbances
Loss of inhibition
What symptoms present in Stage 3 Dementia?
Oblivious to surrounding environment
Unable to care for self
May lose ability to communicate
Sleep often
Often vulnerable to other illnesses
What sleep difficulties are often experienced by people with dementia?
1. Excessive daytime napping
2. Difficulty falling asleep at night
3. Frequently wake during the night
4. Wake excessively early
5. Sundowning - wake during the night in a confused state
What percentage of individuals with mild AD have a sleep disturbance?
25%
What percentage of people with moderate-sever AD have sleep disturbances?
50%
What percentage of the population worldwide have dementia?
0.4%
What are the three main types of dementia?
1. AD
2. Frontotemporal
3. Vascular
When was AD first identified?
1906
What insight is gained from the high comorbidity between sleep and dementia?
correlational but adequate sleep is required for cognitive functioning
What percentage of people with MCI develop dementia?
1% per year
What is the prevalence of dementai in 60 to 69 years olds and those aged 85 and older?
1 to 2% in 60 to 69 years olds
more than 20% in those aged 85 and older
What percentage of people with dementai have AD?
80%
AD is characterised by what symptoms?
Absentmindedness
Irritability
Difficulty concentrating
Difficulty with short-term/working memory and learning
Language problems
Word finding issues
Disorientation
What percentage of people with AD have comorbid depression?
30%
What symptom is often common in AD before cognitive deficits become noticeable?
apathy
What are the two reasons amyloid can build up in the brain?
1. overproduction of beta-amyloid, or
2. deficiency in clearing beta-amyloid
How long can biomarkers be identifiable before cognitive decline begins?
10 to 20 years
What are the main two biomarkers are associated with AD?
plaques (beta-amyloid) and neurofibrillary tangles (protein tau)
How are plaques and tangle measured?
Plaques are measured through PET scans
Tangles are measured through cerebrospinal fluid (CSF)
Which area of the brain are tangle most dense?
hippocampus
What is the hippocampus important for?
memory
What neurobiological changes occur int he brain over time due to the presence of plaques and tangle?
loss of synapses for acetycholinergic (ACh) and glutamatergic neurons, neurons begin to die, cortical shrinkage and ventricle enlargement
What areas of the brain are not usually affected in AD?
Cerebellum
Spinal cord
Motor and sensory areas
What percentage of people with AD have brain deterioration that leads to motor deficits?
25%
What is the heritability of AD?
79% heritability
What gene on chromosome 19 has been identified as as increasing the risk of AD
apolipoprotein E4 or ApoE-4 allele
At what age does early onset AD occur?
35 years old
What is the risk for developing AD if you have one E4 allele? and two E4 allele?
one E4 allele 30% risk
two E4 allele 90% risk
What percentage of people with AD have one E4 allele?
50%
What is the major Australian study that is researching dementia biomarkers?
Australian Imaging, Biomarkers and Lifestyle Flagship Study of AGeing (AIBL)
What risk factors have been identified as increasing the risk of developing AD?
Smoking
Being single
Depression
Low social support
What risk factors have been identified as decreasing the risk of developing AD?
Mediterranean diet
Exercise
Education
Cognitive engagement
In what two ways is cognitive engagement protective?
1. associated with less build up of beta-amyloid
2. associated with increased cognitive ability
What was found in 'use it or lose it' meta analysis study looking at frequent versus infrequent engagement in cognitive activity?
frequent cognitive activity is related to a 46 percent decrease in risk of AD compared to infrequent cognitive activity.
What is the term for the idea that some people may be able to compensate for AD by using alternative brain networks or cognitive strategies such that cognitive symptoms are less pronounced?
cognitive reserve
What predicts more decline in cognitive functioning, greater risk of AD and dementia, and a faster progression of AD?
a lifetime history of depression
What type of dementia causes a loss of neurons in the frontal and temporal regions of the brain?
frontotemporal dementia (FTD)
What type of memory is affected in frontotemporal dementia?
working memory
What is the typical onset of frontotemporal dementia?
mid to late 50's - mean 52.8 years
What is the male/female ratio in frontotemporal dementia?
14:3
Neural deterioration in FTD predominantly occurs in what two specific areas of the brain?
anterior temporal lobe and prefrontal cortex
What are the early signs of frontotemporal dementia?
changes in personality and judgement
Functional impairment in three of what six areas must exist to meet the criteria for frontotemporal dementia?
Empathy
Executive functioning
Ability to inhibit behaviour
Compulsive or perseverative behaviour
Hyperorality
Apathy
People with frontotemporal dementia show and profound change in emotion that commonly causes what to happen?
their relationships to breakdown
How long after diagnosis of frontotemporal dementia do people usually die?
Within 5 to 10 years
What is the prevalence of frontotemporal dementia?
Unclear but between 4 to 20%
Frontotemporal dementai is typically characterised by dysregulation in what two domains?
executive functioning and emotion regulation
What type of dementia is caused by cerebrovascular disease?
Vascular Dementia
What is the most common condition that causes Vascular dementis?
a stroke
What percentage of people develop vascular dementia in the first year after a stroke?
7%
The risk factors for vascular dementai are the same as the risk factors for what other disease?
cardiovascular disease
What are the risk factors for developing vascular dementia?
smoking
High cholesterol
Elevated blood pressure
Strokes and vascular dementia are more common in what race of people?
African Americans
Why do symtoms of vascular dementia vary so much?
because causes such as a stroke affect different areas of he brain
What are the two subtypes of dementia with lewy bodies?
with or without parkinsons disease
What percentage of people with parkinsons disease develop dementia with lewy bodies?
80%
Dementia with lewy bodies is more likely than AD to show what symptoms?
prominent visual hallucinations and fluctuating cognitive symptoms
What is a distinct symptoms of dementia with lewy bodies?
intense dreams accompanied by levels of movement and vocalising
What are people with dementia with lewy bodies often sensitive to?
antipsychotic medications
What are the most common diseases and injury can cause dementia?
Encephalitis
Meningitis
Syphalis
HIV
Neurological trauma ie TBI
Toxin (lead, substance abuse etc)
What is the main effect of medications used to treat dementia?
to slow the cognitive decline
What is the most commonly used type of medication to treat dementia, and what does it do?
Cholinesterase inhibitors, used to interfere with the breakdown of acetycholine.
Why do many people discontinue using cholinesterase inhibitors?
because they have aversive side effects such as nausea
Medical treatment are commonly used to treat what psychological symptoms of dementai?
depression, apathy, and agitation
Describe the 3 most common psychological interventions for dealing with dementia?
1. Therapy to help the carers better cope
2. Exercise to improve cognitive functioning
3. Behavioural approaches to compensate for memory loss, reduce depression and disruptive behaviours
How is delirium typically described?
as a clouded state of consciousness
What are the two most common symptoms of delirium?
1. extreme trouble focusing attention, and
2. profound disturbances in the sleep/wake cycle
What percentage of people with delirium have delusions?
25%
How is mood affected in people with delirium?
people with delirium have extreme mood swings
What causes delirium?
1. Drug/medication complications
2. metabolic/nutritional imbalances
3. Infections/fevers
4. Neurological disorders
5. Extreme stress
What percentage of delirium is caused by drug or medications complications?
40%
When are physicians most likely to misdiagnose delirium?
When lethargy is present
What are the 6 major core features of delirium?
1. disturbances in attention and awareness
2. a change in cognition that is not associated with any dementia
3. rapid onset
4. symptoms typically caused by a medical condition
5. fluctuates very rapidly
6. responsive to treatment
What are five reasons delirium may be associated with age?
1. physical changes later in life
2. increased suseptibility to chronic illness
3. contra-indication of medication
4. greater sensitivity to medication
5. presence of age-related brain atrophy
Once the underlying cause of delirium is identified how long does it take for the condition to clear?
1 to 4 weeks
Older individuals who have depression and GAD, 97%+ have had what?
an diagnosis prior to the age of 65
What disciplines are involved in the multi-discipline treatment of late life disorders?
nursing, psychology, social work, medicine, OT, and pharmacy