Abnormal Psychology
The Research Studies related to the Abnormal Psychology.
Be smart, use ⌘F / Ctrl F please.
Seligman – Learned Helplessness Dog Study (Depression) |
[A] |
Prove that Learned Helplessness can lead to depression. |
[P] |
- A dog was trapped in an enclosed area where the floor was lined with electrodes.
- The experimenter would activate the electrode once in a while.
- The dog would jump over a low wall to the other side of the enclosed area where no electrodes were on the floor.
- The experimenter raised the wall slowly until it was too high for the dog to jump over.
- Then after a few trials, the experimenter lowered the wall again.
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[F] |
- The dog gave the high wall a few attempts.
- But after knowing that it is impossible to jump across, the dog gave up and let itself get electrocuted.
- When the walls were lowered again, the dog did not attempt to jump across.
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[C] |
- The dog learnt that he is incapable of jumping across.
- Learn that its are helpless therefore lowering its self esteem.
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[E] |
- Low in ecological validity, lab experiment.
- Controlled, no confounding variable.
- Animal experiment can provide insight into human behaviour.
- Unethical, participants did not have rights to withdraw.
- Induced fear and depression into participants.
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Rosenhan – On being sane in insane places (I) |
[A] |
Challenge the reliability and validity of diagnosis.
Investigate the effects of labeling. |
[P] |
- Eight participants, 5 male and 3 female, attempted to gain admittance in the hospital’s psychiatric ward.
- Participants phoned up the hospital for a diagnosis appointment.
- They all used a fake name and job (to protect their future health and employment record <- ethical considerations).
- All the participants claimed that they were hearing voices.
- These are existential symptoms which arise from concerns about how meaningless your life is.
- They were chosen because there were no mention of existential psychosis in the literature.
- After admitted into the psychiatric ward, they stopped showing the pseudo-symptoms and acted like they would ordinarily.
- Participants started making notes about their life and the way the were treated in the ward.
- Initially, they had to write in secret because they are scared wardens might find out.
- Afterwards, they realized no one cared so they did it more publicly.
- Participants asked the staffs for a favor that tested the behaviour of staff towards patients, which took the following form:
- ‘Pardon me, Mr/Mrs/Dr X, could you tell me when I will be presented at the staff meeting?’. (or ‘…when am I likely to be discharged?’)
- Similar procedure was carried out with Students at Stanford University with students asking university staff a simple question.
- Results were used to compare.
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[F] |
- All pseudo-patients disliked the environment and wanted to be discharged immediately.
- All participants were “diagnosed” with schizophrenia.
- No staff suspected their sanity.
- Patients in the ward, however, did suspect the sanity of some of them, and reacted vigorously.
- For example: ‘You’re not crazy. You’re a journalist, or a professor. You’re checking up on the hospital’.
- Patients were deprived of almost all human rights e.g. privacy
- Medical records were not kept confidential
- Hygiene was poor
- Wardens would be brutal to patients when no other warden was around
- Indicates that patients had no credibility, but wardens do.
- Time spent with nurses, psychiatrist etc. averaged under 7 minutes per day.
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[C] |
- There is an enormous overlap in the behaviours of the sane and the insane.
- We all feel depressed sometimes, have moods, become angry and so forth.
- But in the context of a psychiatric hospital, these everyday human experiences and behaviours were interpreted as pathological.
- Regarding the favor asked, most pseudo patients were ignored. where as all questions were addressed in the Stanford University experiment.
- Experience of hospitalisation for the pseudo patients was one of depersonalisation and powerlessness.
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[E] |
- Field experiment/covert observation, high ecological validity.
- Can argue that experiment is low in ecological validity, psychiatrist don’t usually diagnose “pseudo-patients”.
- It is expected that the person will have some sort of disorder if they seek diagnosis.
- Psychiatrists would normally play safe in their diagnosis.
- Because there is always an outcry when a patient is let out of psychiatric care and gets into trouble.
- Always a higher likelihood of diagnosing a normal person sick than a sick person normal.
- DSM-II was in used then, an updated version of the DSM (DSM-IV) used now has more sophisticated descriptions for diagnosis.
- Showed that patients suffering from psychological disorders experienced.
- Labeling and stigmatization
- Depersonalisation
- Discrimination
- Controversial study.
- Deception was involved, unethical.
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Rosenhan – On being sane in insane places (II) |
[A] |
Follow up study for Rosenhan – On being sane in insane places (I) |
[P] |
- Falsely inform psychiatric institute that were aware of the first study that during the next three months one or more pseudo patients would attempt to be admitted into their hospital.
- Staff members were asked to rate on a 10-point scale each new patient as to the likelihood of them being a pseudo patient.
- No pseudo patients were sent.
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[F] |
- 193 patients were judged
- 41 were confidently identified as a pseudo patient by at least one member of staff
- 23 were suspected as pseudo patients by a psychiatrist
- 19 were suspected by a psychiatrist and a member of staff
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[C] |
- Rosenhan claims that the study demonstrates that psychiatrists cannot reliably tell the difference between people who are sane and those who are insane.
- The main experiment (I) illustrated a failure to detect sanity, and the secondary study (II) demonstrated a failure to detect insanity.
- Everything a patient does is interpreted in accordance with the diagnostic label once it has been applied.
- The result of labeling/stigmatization
- Should focus on individual’s specific problems regarding behaviour rather than their sanity.
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[E] |
- Deception was involved, unethical.
- Research was done at the cost of misdiagnosis of patients with actual mental disorders.
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Lewinsohn et al (2001) |
Description |
- Studied adolescents who experienced many negative life events over a 12 month period.
- Those who had strongly negative attributions at the start of the study were much more likely to develop major depression.
- Diathesis Stress Model (Events from the environment)
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Brown & Harris – Social origins of depression in women |
[A] |
Find out the social origins of depression in women. |
[P] |
- Studied women who received hospital treatment for depression.
- Sampled 458 women in the general population aged between 18 to 65.
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[F] |
- 82% of those who became depressed had recently experienced severe life changing event(s).
- 33% experienced severe life changing event(s) in the non-depressed group.
- 23% percent working class women became depressed within the past year.
- 3% in the middle class.
- Those with a young children were at higher risk of becoming depressed.
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[C] |
- Life events that resembled previous experiences were more likely to trigger depression.
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[E] |
- Relatively big sample group, representable of the general population, results can be generalised.
- Cultural factors were not taken into consideration.
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Prince – Depression in Africa and Asia |
Study brief |
- Study claims that there were no signs of depression in Africa and parts of Asia.
- Reported depression rose with westernization in colonial countries.
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[E] |
- Researchers argue that depression is not exactly the same globally.
- Depression may be expressed differently and may escape the attention of people from different cultures.
- Asian and African countries tend to be more collectivist.
- People from collectivist society might not report depression since it might affect others in the social network.
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Teuting – Depression and Serotonin study |
Description |
- Individuals with depression were asked to provide urine sample.
- There was a significantly lower level of Serotonin in the urine sample of participants with depression.
- Result of MAO breaking down the Serotonin, correlating to the participant’s depression.
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Genetics studies grid |
Researcher |
Research for |
# of pairs |
Subjects |
Concordance rate |
Price |
Bipolar depression |
97 |
MZ twins |
Reared together |
68% |
Reared apart |
67% |
119 |
DZ twins |
23% |
Allen |
Unipolar depression |
- |
MZ twins |
40% |
- |
DZ twins |
11% |
Bertelsen, Harvald and Hauge |
Unipolar depression |
- |
MZ twins |
80% |
- |
DZ twins |
16% |
McGuffin et al. |
Unipolar depression |
117 |
MZ twins |
40% |
DZ twins |
20% |
Gershon |
Unipolar depression |
- |
First degree relative |
- Individuals with a first degree relative with depression was about two to three times higher than in the general population.
- Social learning theory might be a possible explanation.
|
Wender |
Unipolar depression |
- |
Adopted children |
Adopted children who went on to develop depression had biological parents that were eight times more likely to have depression than their adoptive parents.
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Cooper et al. – New York London Diagnosis |
Description |
- An identical video clip of a patient was shown to psychiatrists from New York and London.
- Psychiatrists from New York had a higher likelihood of diagnosing schizophrenia.
- Psychiatrists from London were more likely to diagnose mania or depression.
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Beck – Psychiatrists agreement |
Description |
- Agreement between two psychiatrists on diagnosis for 153 patients was 54%.
- The was due to the vagueness in criteria for diagnosis and;
- The different process for diagnosis.
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Erinosho & Ayonrinde – Nigeria Yoruba Tribe study |
[A] |
Investigate the cultural differences in criteria of normality and abnormality. |
[P] |
- Participants were tribesmen from the Yoruba tribe in Nigeria.
- Information of patients with schizophrenia were presented to people of the Yoruba Tribe.
|
[F] |
- Only 40% of the tribesmen from the Yoruba tribe identified the patients as mentally ill.
- 30% of the tribesmen said they would marry such person.
- This maybe due to the cultural differences between the tribesmen and the westernized world (see Binitie’s study).
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[C] |
- Shows the importance of an emic approach in studies.
- The ability to identify the definition of “abnormality” in different cultures can only be done in culture specific approach in studies.
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Binitie – Schizophrenia in Nigeria |
[A] |
Investigate the cultural differences in criteria of normality and abnormality. |
[P] |
- Participants were Nigerians living in the city.
- Information of patients with schizophrenia were presented to the participants.
|
[F] |
- Most participants correctly identified the patients as mentally ill.
- 31% showed aggressive response to such patients e.g. suggesting that they should be expelled or shot.
|
[C] |
- Shows how western culture has influenced the judgement of normality (compared with Yoruba tribe study).
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McKeon and Murray – OCD prevalence |
Description |
Relatives of OCD patients were more likely than the rest of the population to suffer from anxiety disorders in general, but no more likely to suffer specifically from OCD.
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Baxter et al. – Caudate Nucleus and OCD |
[A] |
Observe the differences in brain function in patients with OCD before and after successful treatment. |
[P] |
- PET scanning was used to identify active areas of the brain.
|
[F] |
- The right Caudate Nucleus became more active in patients after treatment.
|
[C] |
- There is a correlation between the activity of the Caudate Nucleus and OCD.
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Sullivan – Factors Related to OCD |
[A] |
Examining the relation between academic majors/minors of college students, birth order, gender, level of stress, locus of control and the amount of obsessive-compulsive (OC) behaviors. |
[P] |
- All participants were selected through convenience sampling.
- A sample of 75 undergraduate students was surveyed.
- 51 females, 24 males
- 46 students with science/business majors/minors
- 26 students with liberal arts/humanities majors/minors
- 30 first born or only children
- 43 standing lower in the birth order
- Questionnaires assessing OC behavior using a 1-7 Likert scale were administered to participants.
- Questions were based on the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), including 26 questions measuring obsessive thoughts and compulsive behaviors.
- Relationships between the different demographics and OC behaviour were determined using a t-test or a Pearson Correlation.
|
[F] |
- Results supports the following hypothesis:
- Females reporting more OC behaviors.
- Participants with greater stress level reporting more OC behaviors.
- Results do not support the following hypothesis:
- First born and only children reporting more OC behaviors.
- Students with external locus of control reporting more OC behaviors.
- Difference in the amount of OC behaviors among students in Science majors/minors vs. Liberal Arts/humanities majors/minors.
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[C] |
- Greater stress level means higher level of anxiety.
- Prevalence of OC behaviour in this demographic can arguably be a response to sooth the high anxiety level.
- Corresponds to previous studies (Bogetto et al., 1999).
- Most demographics chosen were not equally sampled, and this sample size is not representative of the population.
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Temerline – Authority on diagnosis |
[A] |
Investigate the effect of authority on diagnosis. |
[P] |
- 2 groups of participants listened to the same taped interview of a person describing their own life.
- The person talked about a seemingly normal life (i.e. happy marriage, enjoyment at work).
- A respected figure in psychiatry then told 1 group of participants that he thinks the man was psychologically health.
- He told the other group that he thinks the person was a psychotic.
- Participants were then asked to judge the person’s mental health.
|
[F] |
- Those who were told the participants were normal gave a “normal” diagnostic.
- Those who were told that the participant was a psychotic agreed with that diagnosis.
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[C] |
- Shows that someone with authority and expertise can have stung influence on the way people are perceived.
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[E] |
- The story of the taped person was hypothetical.
- Might have gave a different response if the person was physically present.
- Difficult to gather information about real-life roles and interactions between psychiatrists and patients.
- May break ethical guidelines (Privacy and Confidentiality).
- Opinions on causes and treatment may differ between psychiatrists.
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