B1 Flashcards

1
Q

what are life events?

A

They are important events that happen in an individual’s life, we experience them as stressful because we need to make a psychological adjustment to cope with the change. The bigger the event the more we need to adjust so it is more stressful. The effects of life events add up, if two major life events happen at once you’ll need to make a bigger psychological adjustment to be able to cope with the changes.

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2
Q

how to measure life events?

A

Thomas Holmes and Richard Rahe made the Social Readjustment Rating Scale (SRRS) to measure life events. It is a list of 43 life events, each life event is given a number of Life Change Units (LCU). the number shows the amount of adjustment an individual needs to adapt to that life event. The person then choses all the life events they have experienced and the level of stress is calculated by adding the LCU of each life event.

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3
Q

how are life events associated with ill health?

A

Researchers have used the SRRS to see if ill health is associated with life events. Most studies find out the total LCU for the past 6 or 12 months. Rache (1972) said that a person scoring under 150 has a 30% chance of experiencing a stress related illness in the following year. The probability increases 50% for scoring between 150 - 299 LCU. it increases again by 80% for someone who scores over 300 LCU.

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4
Q

what is a strength of Life Events?

A

Lietzen followed 17,000 participants. None of them had asthma at the beginning of the research. At the end 192 developed asthma. There was a moderate positive correlation with life events.

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5
Q

what is a weakness of Life Events?

A

Assumes all life events are negative and stressful. This means this scale might not be valid.

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6
Q

what are Daily Hassles?

A

minor irritations and frustrations that occur on a day a day basis. We think about them because we think of them negatively causing us to think that we are unable to cope with them.

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7
Q

what did Kanner et al find?

A

Developed the hassles scale. It lists 117 daily hassles from categories, like work and family etc. every day you chose the hassles that occurred on that day and rate them from severity on a scale of 1 to 3. You add up the severity scores to get a total score for that day.
Kanner also produced the Uplift scale. Uplifts are small daily ‘boosts’ that make us feel better. They counteract the stress of hassles.

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8
Q

how are Daily Hassles associated with ill health?

A

Daily hassles can damage our health because we experience them so often, usually more than one throughout the day. They can make us ill because of their connection to life events, life events usually disrupt our normal daily hassles. Life events are an indirect source of stress which affects us because it creates more hassles. The hassles are stressful because we experience the directly.

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9
Q

what is a strength of Daily Hassles?

A

Kanner et al 1981 tested 100 participants ages 45-64. These individuals had to complete the scale every month for 9 months, in addition to measuring psychological symptoms of anxiety and depression. They found there was a significant positive correlation between hassle frequency and psychological symptoms at the start and end.

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10
Q

what is a weakness of Daily Hassles?

A

What is an issue using retrospective questioning? Asking them about the last month —> lowers reliability of the study

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11
Q

what are the two types of role-conflict in the Workplace?

A

Intra-Role conflict: the role has competing demands i.e two projects at once
inter-Role conflict: has two roles with competing demands i.e student and employee

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12
Q

how can the environment effect stress in the Workplace?

A

Temperature: if the environment is too hot it is then associated with stress and aggressive behaviour, if the environment is too cold it also causes stress because it is a negative stimulus that can cause distress.
Noise: if the environment is too noisy then that can cause stress because noise is unpleasant and it causes people to stop working, some noise can not be controlled making it more stressful.

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13
Q

how can the level of control effect stress in the Workplace?

A

The amount of control someone has over their work can cause them more or less stress. If an individual has less control over their work them they will become more stressed . if the individual has more control over their work they will be less stressed.

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14
Q

what is a strength of the Workplace?

A

Johansson et al (1978) compared low risk workers (maintenance workers) and high risk workers (working with heavy machinery away from others) in the same saw mill. They measured stress hormones (adrenaline and noradrenaline) alone with self reported levels of stress. They found the levels of stress were higher in the high risk group overall. The high risk group had higher levels before leaving the house which increased during the day. They also had a higher rate of illness and absenteeism.

Weakness of the study:
Self report lowers validity

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15
Q

what is a weakness of the Workplace?

A

There are culture differences, lack of control is considered stressful in Individualist cultures. However, control was seen as less desirable in collectivist cultures.

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16
Q

what are the 3C’s of a Hardy personality?

A

Commitment: throw themselves into life and have a strong sense of purpose
Challenge: they are resilient and welcome change rather than thinking its a threat
Control: strong believe they are in charge of events, they make things happen rather than things happening to them

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17
Q

what is a type A and type B personality?

A

A: competitiveness, time urgency and hostil → gets stressed easily
B: more laid back, carefree and relaxed

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18
Q

what is a strength of personality?

A

Rosenmen (1976) → 3,000 men either Type A or type B in their 60s, All free from coronary heart disease
After 8.5 yrs:
257 got CHD
70% were type A
Type A = higher stress hormones, increase cholesterol and blood pressure
Out of the people with CHD who did not die from a heart attack. After several years Type B survivors were more likely to die than type A. Type A were more motivated to make positive lifestyle changes after a first heart attack, reducing the risk of a second.

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19
Q

what is a weakness of personality?

A

Measurement issues:
Hardiness and type A are measured using self report in any questionnaire

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20
Q

what did Selye (1936) find?

A

Selye (1936) said the stress response was positive because it allows a person to protect themselves.
He said that when animals (including humans) are exposed to unpleasant stimuli they display a universal response to all stressors.

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21
Q

what does General stand for in GAS?

A

The response is the same to all stressors

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22
Q

what does Adaptation stand for in GAS?

A

The best way for the body to cope with stress.

23
Q

what does Syndrome stand for in GAS?

A

Group of symptoms

24
Q

what happens in the Alarm stage (fist stage of GAS)?

A

When the threat or stressor is recognised, Hypothalamus releases Adrenaline and Noradrenaline 🡪 Physical responses

25
Q

what happens in the Resistance stage (second stage of GAS)?

A

body attempts to adapt to the stressful environment and body attempts to conserve energy

26
Q

what happens in the Exhaustion stage (third stage of GAS)?

A

Body’s resources have become depleted. Immune system becomes compromised.

27
Q

what happens in the first stage of SAM?

A

The route through which the brain directs the sympathetic branch of the autonomic nervous system (ANS) to activate in response to short-term stress.

28
Q

what happens in the second stage of SAM?

A

The hypothalamus activates the sympathetic branch of the ANS, which then signals the adrenal medulla to secrete adrenaline and noradrenaline.

29
Q

what happens in the third stage of SAM?

A

The sympathetic nervous system itself has direct connections to the heart and activation speeds up heart rate and raises blood pressure. These effects are increased and sustained by the release of adrenaline and noradrenaline.

30
Q

what happens in the last stage of SAM?

A

End result is that oxygen is rapidly pumped to the muscles allowing for increased physical activity. As a result of all this the person is ready for ‘fight or flight’.

31
Q

what happens in the first stage of HPA?

A

The hypothalamic pituitary adrenal system (HPA axis) is a system that directly influences the endocrine system to active the stress response

32
Q

what happens in the second stage of HPA?

A

When the brain interprets a stressor, the hypothalamus produces a hormone called CRF (corticotropin releasing hormone), which stimulates the pituitary gland to secrete ACTH (adrenocorticotropic hormone), which stimulates the adrenal cortex, part of the adrenal glands

33
Q

what happens in the last stage of HPA?

A

The adrenal cortex then secretes corticosteroids, which help to increase energy levels

34
Q

what is a strength of Physiological Responses?

A

Research indicates a third response existed when a person or animal is under threat, and that is to ‘freeze’. It’s an attempt to avoid confrontation altogether. During the freeze response the person or animal is hyper-vigilant while they quickly assess the situation for the next move. This is cognitive paralysis / the mind going blank until the threat has passed.

35
Q

what is a weakness of Physiological Response?

A

Increased levels of cortisol in the body can lead to suppressing immune function.
Modern stressors are often chronic which can lead to damage to the body.

36
Q

what is a weakness of Physiological Response?

A

Females adopt a ‘tend and befriend’ approach to a threat/danger. Taylor (2006) suggested that women are more likely to protect their offspring (tend) & form alliances with other women (befriend) rather than fight or run.

37
Q

what is a weakness of Physiological Response?

A

Lazarus (1991) pointed out that we cognitively appraise a stressor by working out if it is a threat and whether we have resources to cope. Seleye’s research with rats does not present a full picture of human stress

38
Q

What does the immune system do?

A

The body’s defence against invading antigens. Its activity can be suppressed by stress, reducing its activity and effectiveness

39
Q

What is innate immunity?

A

General response to any antigen, Fast, Involves White blood cells (WBC) and NK (natural killer) cells that destroy tumour cells and cells infected with virus

40
Q

What is acquired immunity?

A

Immunity you develop over your lifetime. It can come from: a vaccine or exposure to an infection or disease, Lymphocytes that recognise and destroy specific antigens, Memory T and killer T cells which recognise and destroy

41
Q

What can increase ill health?

A

Direct biological effects e.g. physical strain, hormonal changes. Cortisol suppresses immune system, Maladaptive coping behaviour e.g. smoking, drinking alcohol, Emotionally mediated effects on diet and activity level

42
Q

what are the Short term impacts?

A

Stress can affect this brain-gut communication, and may trigger pain, bloating, and other gut discomfort to be felt more easily. Stress can also make pain be felt more easily in the bowels. It can affect how quickly food moves through the body. Furthermore, stress can induce muscle spasms in the bowel, which can be painful.
Tension headaches can be due to stress .This is due to the fight/ flight constricting blood vessels leading to tension headaches.

43
Q

How does acute stress cause heart problems?

A

The SNS (sympathetic nervous system) constricts the blood vessels, which leads to an increase of blood pressure and heart rate.
The increased blood pressure wears away the lining of the blood vessels.
The increased blood pressure can dislodge plaques on the walls of arteries.
This limits the flow of oxygen-rich blood to your organs and other parts of your body.

44
Q

what are the Stressors on the heart?

A

Cholesterol – used to produce hormones and bile.
Cardiovascular disorder: any disorder of the heart and circulatory system
If you have high levels this can build up on the walls of your arteries restricting the blood flow to the heart and the brain and increasing the likelihood of a blood clot – used to produce hormones and bile .
Hypertension – the force at which your heart pumps blood around the body. This increases the likelihood of strokes / heart attacks.
Stress hormones can cause atherosclerosis (narrowing of the arteries) by increasing the formation of fatty clumps (plaque) on the artery walls
This could indirectly be caused by stress coping behaviours such as eating foods high in cholesterol, alcohol etc.
Over time, stress may affect the cardiovascular system.
High blood pressure (hypertension)
Coronary heart disease (narrowing of arteries)

45
Q

what can Strokes cause?

A

Cardiovascular disorders are not simply heart attacks.
A stroke maybe due to a lack of oxygen to a part of the brain (blocked blood vessel) or blood leaking into the brain.

46
Q

what did Ute-Wilbert-Lampen (2008) find?

A

Acute Stressor e.g. sudden emotional arousal
U W-L looked at incidences of heart attacks during matches (played in Germany) during the 2006 World Cup.
Findings: Cardiac emergencies increased by 2.66 times (compared with a control period).

47
Q

what is HIV?

A

HIV (human immunodeficiency virus) is a virus that damages the cells in your immune system and weakens your ability to fight everyday infections and disease.

48
Q

what is Chronic stress?

A

Long-term stressors result in the production of cortisol.

Cortisol produced by HPA stress inhibits production of lymphocytes.
Lymphocytes are a type of white blood cell.
They fight any infection / foreign cells that enter the body.

49
Q

what is Immunosuppression in chronic stress?

A

The immune systems ability to fight off the antigens is reduced and we are much more likely to pick up infections as a result.
The stress is not the cause of the illness but does make us much more susceptible to infectious agents by temporarily suppressing the immune system
This is IMMUNOSUPPRESSION

50
Q

what is a strength of Stress and ill health?

A

Kiecolt-Glaser (1984) – whether the stress of important examinations had an effect on the immune system.
75 medical students
Blood test - 1. Month before exam period 2. Final exam week
Mild chronic stressor leads to immunosuppression
Significantly lower NK cell activity in the 2nd blood sample

51
Q

what is a weakness of Stress and ill health?

A

Dharbhar (2008) subjected rats to mild short-lived stressors and found that this stimulated a significant immune response. So, the immune system can actually give some projection against acute stressors. But long term stressors are damaging to the immune and cardiovascular systems. THE RELATIONSHIP BETWEEN STRESS AND ILLNESS IS MUCH MORE COMPLEX THAN WE THINK

52
Q

what is a weakness of Stress and ill health?

A

Pereia et al (2003) studied women who were HIV-positive. HIV is a virus that reduces immune system activity. Women who experience many stressful life events were more likely to develop pre cancerous lesions of the cervix than women who experienced fewer.

53
Q

what is a weakness of Stress and ill health?

A

Other things might have an impact on our health, indirect results of stress i.e. less sleep, a change in diet, smoking, alcohol. Can’t be sure that cortisol is the only cause of illness.