Chapter 14 Flashcards
Aging
Elderly = age?
life expectancy in last 200 years?
Elderly = over the age of 65
Arbitrary point set largely by social policies
In less than 200 years, life expectancy has almost doubled in Western world
T/F
Aging involves inexorable cognitive decline
FALSE
Severe cognitive problems do not occur for most
Mild declines are common
T/F
Older adults are unhappy
FALSE
More skilled a emotion regulation
Attend more to positive
Display less psychophysiological response to negative emotion
T/F Late life is a lonely time
FALSE
Interests shift away from seeking new social interactions to cultivating a few close friendships
Social selectivity
Problems Experienced in Late Life : common problems
- Physical decline and disabilities
- Sensory acuity deficits
- Loss of loved ones
- Social stress of stigmatizing attitudes towards elderly
- Cumulative effects of a lifetime of stressors
- Decline in quality and depth of sleep
Problems Experienced in Late Life
common problems and *Polypharmacy
Problems Experienced in Late Life : polypharmacy
*Polypharmacy: Prescribing multiple drugs to a person
40% of elderly persons are prescribed at least 5 medications
Increases the risk of adverse drug reactions
Most researchers test drugs on younger people
Research Methods: Three Types of Effects
Age, Cohort and Time-of-Measurement Effects
Research Designs
- Cross-sectional studies
- Researcher compares different age groups at the same point in time on a variable of interest
- Fails to provide information about how people change over time
*Longitudinal studies
Researcher retests the same group of people with the same measures at different points in time
May extend over several years or decades
Attrition can lead to biased sample
Selective mortality – no longer available for follow-up because of death
People with the most problems are likely to drop out from a study
Longitudinal studies
*Researcher retests the same group of people with the same measures at different points in time
-May extend over several years or decades
*Attrition can lead to biased sample
Selective mortality – no longer available for follow-up because of death
People with the most problems are likely to drop out from a study
*Cross-sectional studies
- Cross-sectional studies
- Researcher compares different age groups at the same point in time on a variable of interest
- Fails to provide information about how people change over time
Psychological Disorders in Late Life
DSM criteria are the same for older and younger adults
Particularly important to rule out medical explanations
Medical problems can also worsen the course of depression
Age-related deterioration in the vestibular system can account for panic symptoms
Depression is common after strokes or heart attacks
Antihypertensive medication, corticosteroids, and anti-parkinson medications may contribute to depression or anxiety
Disentangling medical and psychological concerns is complex!
Methodological Issues
Response bias
Discomfort discussing symptoms may minimize prevalence estimates
Cohort effects
E.g., many people who reached adulthood during the drug-oriented era of the 1960s continue to use drugs as they age
Selective mortality
Psychological disorders are associated with premature mortality
Methodological Issues :Selective mortality
Selective mortality
Psychological disorders are associated with premature mortality
Methodological Issues :Cohort effects
Cohort effects
E.g., many people who reached adulthood during the drug-oriented era of the 1960s continue to use drugs as they age
Treatment
Similar to treatments that work in earlier life
Many medications can cause serious side effects in elderly
Psychotherapy is the first line approach for anxiety
Adapt to adjust for vision and hearing loss
Telemental health for people with limited mobility
May include a caregiver in therapy sessions
Use of memory aids (e.g., worksheets on session content)
Mild Cognitive Impairment
Early signs of decline before functional impairment
Problems with DSM-5 criteria requiring a low score on only one cognitive test
Some cognitive test are more reliable and relevant than others
Using more than one test improves reliability
10% of the time, cognitive declines are tied to other problems
Infection, sleep loss, thyroid disease, vitamin deficiencies
Current MCI criteria may not be very reliable
Could lead to over-diagnosis
Not all people with MCI develop dementia
DSM-5 Criteria: Mild Neurocognitive Disorder (Mild Cognitive Impairment
Modest cognitive decline from previous levels in one or more domains based on both of the following:
- Concerns of the patient, a close other, or a clinician
- Modest neurocognitive decline (i.e., between the 3rd and 16th percentile) on formal testing or equivalent clinical evaluation
- The cognitive deficits do not interfere with independence in everyday activities (e.g., paying bills or managing medications), even though greater effort, compensatory strategies, or accommodation may be required to maintain independence
The cognitive deficits do not occur exclusively in the context of delirium and are not due to another psychological disorder
DSM-5 Criteria: Major Neurocognitive Disorder
aka Dementia
Significant cognitive decline from previous levels in one or more domains based on both of the following:
- Concerns of the patient, a close other, or a clinician
- Substantial neurocognitive impairment (i.e., below the 3rd percentile on formal testing) or equivalent clinical evaluation
- The cognitive deficits interfere with independence in everyday activities
- The cognitive deficits do not occur exclusively in the context of delirium and are not due to another psychological disorder
Alzheimer’s Disease
Irreversible brain tissue deterioration
Death usually occurs within 12 years
Usually begins with:
Absentmindedness and gaps in memory for new material
Leaving tasks unfinished or forgotten
Difficulty finding words
Other symptoms
Apathy, depression, disorientation
As brain deterioration progresses, the severity of symptoms increase
At first, people are often unaware of their cognitive problems
Progresses to oblivious awareness of surroundings
Brain Changes in Alzheimer’s Disease
Plaques: β-amyloid protein deposits Primarily found in frontal cortex Neurofibrillary tangles: Protein filaments composed of tau Primarily found in hippocampus Measured using PET scans
Immune responses to plaques lead to inflammation
-Loss of synapses and neuronal death
Frontotemporal Dementia
Loss of neurons in frontal and temporal lobes
Typically begins in late 50s, progressing rapidly
Death usually occurs within 5 years
Affects less than 1% of the population
Memory not severely impaired
There are multiple subtypes
Most common subtype: behavioral variant
Deterioration in at least 3 areas:
Empathy, executive function, ability to inhibit behavior, compulsive or perseverative behavior, tendencies to put nonfood in mouth, apathy
Strikes emotional processes more profoundly than Alzheimer’s
Often misdiagnosed
E.g., midlife crisis, bipolar disorder, depression