Tier 2 Flashcards
Neurological changes in aging, 2x primary and 2x secondary
Primary
- Loss of dendrites
- Reduced dopamine and serotonin production
Secondary
- Neurofibrillary tangles - tangles of dead dendrites
- Senile plaques - hard clusters of dead neurons
Two structural changes in our brains during early adulthood
- Synaptic density declines beyond pruning which happens in childhood and adolescence, leading to slower fire rates.
- Two growth spurts in prefrontal cortex, one associated with abstract thinking and dual representation whilst the other is associated with response inhibition / integration of limbic system / using emotions in when making judgments instead of letting emotions cloud our judgement.
Two structural changes in brain during middle adulthood
- DENDRITIC loss leading to slower fire rates
- Old model showed neural loss, but new research explains that neurons don’t die but instead go through changes in complex chemical processes.
Two structural changes in brain during late adulthood
- Even further continuation of dendritic loss, leading to slower fire rates
- Cortex shrinks, more specifically prefrontal cortex, hippocampus and cerebellum
Two neurological changes across adulthood
- Decrease in dopamine production and receptors
- Decrease in serotonin receptors and transporters
- Further decrease in serotonin production associated with Alzheimer’s
- Decrease in glutamate which is associated with synaptic plasticity
Two changes in the function of the brain across adulthood
- Reduced blood flow during late adulthood, especially in frontal cortex, leading to less effective processing
- Decline in working memory - especially spatial information and complex tasks, although this does not occur when it comes to verbal information
- Slower processing speed because of degradation of myelin sheats and increase in amyloid-beta proteins
Neurological changes in brain across adulthood, primary and secondary
Primary
- Decrease in dopamine production and receptors
- Decrease in serotonin receptors and transporters
- Dendritic density declines
Secondary
- Senile plaques, hard clusters of dead/dying neurons
- Neurofibrillary tangles, tangles of dead dendrites
- White matter hyperintensities, decrease in white matter due to events such as strokes
Explain why changes in brain are described as heterogenous
Several factors such as sleep, weight, head trauma, education, resting and excercise time affecting:
- Decline rate, hwo rapidly the changes happen
- At which point the changes start occuring
What is G composed of and how does it change across adulthood
G is general intelligence, composed of crystallized intelligence which is knowledge we learn across life, as well as fluid intelligence which is how to use the intelligence learned and how to be able to adapt and think flexibly.
Crystallized intelligence is increased with adulthood and fluid intelligence is decreased.
What is the P-fit model, what evidence supports it? (29)
The P-fit model suggests that an integrated network located in the parietal and frontal lobes of the brain are associated with fluid intelligence, which has been shown with the help of neuroimaging.
What is wisdom, how is it tied to intelligence, how does it change with age and what cultural differences are there.
Wisdom is superior knowledge, judgment and advice as well as knowledge of great depth. When used it is well-intended. There is personal knowledge which is
tied to oneself, having self-insight, life management, knowing how to cope with difficult situations. There is also general wisdom, tied to the world around oneself.
Life-insight, being able to give advice and support to others. Wisdom is not equal to intelligence but it is related to it, and it is the same with age.
Wisdom is gained by experiences which in turn are often gained by age, and these experiences are also associated with knowledge gained which increases
crystallized intelligence, in that way they are connected. As well as fluid intelligence which explains how well one uses their knowledge. Different cultures place different values on wisdom, for example in Japan wisdom is greatly respected and is deemed attractive.
What is dual process of cognition, what is the “dual” and what types of cognitions fall in to the types
Dual process of cognition is the theory that our cognition is split into two categories, one automatic and one effortful. It is unknown whether these interfere with each other or not.
Automatic: Quick, emotion based, context based, unconscious and high capacity
Effortful: Slow, rule-based, conscious, controlled, limited capacity, requires working memory
What age differences are seen in how adults use dual processes? What are the
implications for older adults’ cognitive functioning? How are the ways older adults
process information adaptive / maladaptive for them?
Older people use the automatic type in the dual process theory of cognition, which is more emotion based, quick, context based, unconscious and has a high capacity, whilst younger adults use both.
The implications for older adults cognitive functioning is that they have a more difficult time using their
active effortful cognitive processing and so they rely more on the automatic part. This is adaptive because of the use of a less effortful and quicker cognitive process but maladaptive because they might be more prone to thinking errors. The experience they possess may also lead to a better use of type 1 processing.
Theoretical ideas about how middle-aged and older adults handle stereotypes of aging
Resilience theory - refers to how people confront and reject negative stereotypes, which leads to them having a more positive self-perception, which is common among older adults. Leads to being less susceptible to stereotypes
Labeling theory - refers to how people believe in the stereotypes which leads to them applying the stereotypes to themselves, older adults tend to do this more often when it comes to age-related stereotypes. Leads the them being more susceptible to stereotypes.
Stereotype threat, how does it affect older peoples cognition?
Stereotype threat is when there are negative stereotypes which one is afraid to confirm. In older people this stereotype threat affects their cognitive
ability by worsening it, older people that believe in these negative stereotypes will perform worse at a task (despite their innate ability) in fear of
confirming it, whilst older adults who do not believe in the stereotypes will perform better. Self-fulfilling prophecy.
Hayflick limit
The hayflick limit explains how cells only have a limited amount of times they can divide themselves. This is related to the telomere which is shortened
by every division of the cell. Researchers estimate that a cell can divide itself from 40-60 times before running out of telomere, and they explain this by
looking at the cell of a fetus (when it can divide 40-60 times) and comparing it to that of an adult (which could only divide up to 20 times). I think humans
haven’t reached the hayflick limit, as when the telomere reaches a critical point the cell mutates and dies.
What contributes to DNA mutations that are thought to limit the human life span?
Free radicals (highly reactive chemicals produced randomly in normal metabolism) damage cells. Researchers show that antioxidants which prevent the forming of free radicals decrease the risk of several age-related diseases.
Chronic stress increases the speed of which changes telomeres occur, leading to a shorter life span.
What characterizes the transition to adulthood? Cultural differences in transition?
Occupation, comitting to partnership and parenthood, growing a sense of responsibility. Different cultures acknowledge this transition in different ways, some cultures military, other bar mitzvah.
What are individual and social consequences of aging
Individual consequences: Reduced ability to take care of themselves leading to dependency of others. Visual loss leading to reduced mobility, severe visual loss leads to complete dependency of others. Memory can be affected by hearing loss since we get reminded of things with sounds, which leads to cognitive decline. Not hearing leads to feelings of shame. Olfactory and gustation changes lead to food tasting less and becoming boring, which can lead to malnutrition + loss of memory (because of smell) and not being able to smell burnt or bad food.
Social consequences are that interactions demand more of the person ENVIRONMENT which leads to need of accomodation to the person. Visual and hearing loss lead to Isolation, loneliness and depression due to these.
What is the neural efficiency hypothesis and what evidence supports it?
The neural efficiency hypothesis explains that more intelligent people process information more efficiently and less activity in the brain is needed. Research has shown that higher intelligence leads to increased efficacy in neural processing but they don’t know how.
Describe two aspects of emotional intelligence. How is emotional intelligence linked to cognitive intelligence (e.g., IQ)?
One aspect of emotional intelligence is trait-like.
Trait-like IE is how well a person understand their disposition of traits and abilities related to emotions and emotional processing.
Ability IE is how well a person can understand their own and others emotions, distinguishing between them and how appropriate their emotional processing is in response to different social contexts.
IE is linked to IQ in the way that both describe having knowledge and using that knowledge appropriately and adaptively. One can draw a parallel between fluid intelligence and ability IE, and crystallized intelligence with trait-like IE.
Describe two age-related differences in impression formation. What do researchers suggest are behind these differences?
When there is a first impression which is negative followed by a second impression which is positive, older adults were more likely to stick to the negative first impression than younger adults. When there is a positive first impression and negative second impression, older people were more likely to revise their attitude from positive to negative than younger adults. Research explain that this is due to older people having a negativity bias, which is when negative information holds a higher value for an individual in comparison to positive information, and despite having been presented with positive information the negative bias is firm. The reason for this thought is because of older adults tendency to not change their negative impression of someone when presented with positive information as well as changing their impression of someone from positive to negative as soon as a negative impression is presented. Another explanation for this is that older people have more life experience and use a more rule-based judgement, and take in all the information they get, whilst younger people are more prone to taking in new information and are more concerned with situational consistency of new information.
What is the correspondence bias? What age-related differences are there in this bias? What are some conditions that affect this difference?
The correspondence bias is the tendency to label attributes to a person based on their actions instead of perceiving their actions as a part of environmental
factors. Relying on dispositional explanations instead of situational explanations. Young adults do this in relation to older adults, perceiving their actions
as part of their dispositions when they can be fully explained by the older adults situations. Due to older adults life experiences they tend to have a more
dialetical approach, taking all information in to account on a higher level and explaining behaviours as part of dispositions and situations. However, in
more negative relationship situations, older adults tend to make correspondence biases more than younger adults, likely due to their negativity bias. This
is also the case if the relationship between the older adult and the person is a close relationship, older adults also do this if their strong beliefs are violated.
What is the positivity effect? How does it relate to SOC models?
The positivy effect explains the tendency of older adults to focus on positive information whilst avoiding negative information when making judgements and
remembering events. Older people allocate less attention to negative information and vice versa when recalling autobiographical events. Younger adults allocate
equally. The reason for this redirection of focus of information is to increase ones’ emotional well being and happiness. It relates to the SOC model SAVI, strength and vulnerability integration model, which
explains how older adults have a harder time regualting emotional distress. The positivity effect lets older adults focus on positive emotions and information
in order to avoid negative emotions as they are more demanding.
It is also related to SOC since there is a reduction in resources which leads to them selecting certain situations in concordance with their
goals (well being, feeling good), optimizing potentiation of these gains by focusing on the positive information and by doing so compensating for the losses.
What is personal control? What are two broad ways that people view personal control?
Personal control is to what degree a person perceives themselves being able to influence their performance. Having a high personal control means one thinks
they can change their performances, whilst low control means they think that their performance is under the influence of others. Personal control is either
seen as entity (innate cause, what one is born with) and skill (what one can learn). Personal control is associated with well-being.
Describe one of the two theoretical ideas about maintaining personal control when aging.
Brandstäter AAI
- Assimilative activities: Actions that prevent or aleviate loss of abilities which are important for ones self esteem
- Accomodation: Shifting goals to neutralize or lessen impact of negative self evaluations
- Immunizing mechanism: Using strategies to avoid or declines in important aspects of one’s self view
Heckhausen
Primary changes: Focused on changing environment (finding a new job when getting fired)
VS.
Secondary changes: Focused on changing oneself (I didn’t even like that job anyway)
Primary changes are considered more adaptive and is used more in early/middle adulthood, but as functioning declines secondary change is used more.
What is collaborative cognition? Why is it an considered an example of SOC?
Collaborative cognition is when people accomodate cognitions for each others when performing tasks or remembering events in order to reduce demand on cognition. One example of this is when elderly
couples remember different parts of the same event. This is considered as an example of SOC because older people SELECT a story to remember, OPTIMIZE the memory by remembering only part of it and by doing so COMPENSATING for ones’ own decline in cognition as well as the partners decline.
Describe the three crises of adulthood according to Erikson. Evaluate the evidence examining these crises.
Early adulthood: Intimacy vs isolation. Finding someone one can be intimate with and which one can share all aspects of oneself with, setting grounds for future relationships. E: The development of this need for intimacy begins earlier, and it might be related to attachment figures.
Middle adulthood: Generativity vs stagnation. Feeling a concern for younger generations, sustaining the society, children and grandchildren, or having none
of those feelings and being self-concerned. E: There is evidential support for generativity being related to well being, but the direction is uncertain.
Late adulthood: Ego integrity vs ego despair. Either thinking that one will live on through society and ones’ children, reminiscing about and
evaluating ones’ life, or thinking that it’s all too late. E: Reminiscence does not necessarily have to be positive, and can potentially be maladaptive by
leading to rumination. However, it can also reduce death anxiety.
All in all these crises are not stage like but can be considered as cycle-like, and they can occur in different ages.
What is the “midlife crisis”? Provide three findings from research that suggest this
idea is false.
The idea that people entering a certain age in middle adulthood experience a crisis as they are faced with their mortality, leading to major actions such as
divorcing or changing one’s appearence. This is not supported by research.
1. People experiencing these crisis attribute them to life stressors which can occur at any given point in life.
2. It seems as people are going through a midlife correction, realizing they are not happy with the state of their life thus wanting to make changes.
3. Cross cultural studies show that these kinds of crisis is mostly prominent in western countries, and does not apply to other cultures.
What are possible selves? Are there age-differences in possible selves?
Possibles selves are what we could become, what we hope to become (hoped-for selves) and what we fear to become (feared-for selves).
Hoped for selves are family-oriented at young adulthood, then turns to personal-oriented with adults in their 30s, leading back to family oriented around
40-59 years old, then turning back to personal-oriented after the age of 60. Younger people tend to have more hoped for selves, they think they can achieve those hoped for selves and they avoid their feared for selves. Older adults have less hoped for selves and perceive both them and feared for selves as out of their control. A general feared for across all ages is to have bad health.
Describe the “plaster hypothesis” according to Costa and McCrae. Using the Big 5 as the definition of personality, evaluate the evidence of Costa and McCrae’s claims.
The hard plaster hypothesis explains that personality changes are stable and unchangeable after the age of 30, whilst soft plaster hypothesis describes
that personality changes after the age of 30 is possible (but not by a lot). The hypothesis can not be refuted as rank-order change is stable when one does not take into account biological changes. Since it is logical that biological changes also change personality. Studies have been deficient in trying to refute the hypothesis, their methods have been deficient by doing too few assessments and not looking at rank-order changes.
Conscientiousness peak at middle adulthood and is thereafter stable
Neuroticism has a drastic decline during aging, almost non-apparent in late adulthood.
Agreeableness increases during adulthood
Openness and extroversion decreases during adulthood
Conscientiousness peak at middle adulthood and is thereafter stable
Neuroticism has a drastic decline during aging, almost non-apparent in late adulthood.
Agreeableness increases during adulthood
Openness and extroversion decreases during adulthood