Disorders
- Created by: jatyization
- Created on: 30-03-15 02:17
Depression: Affective Disorder
Characteristics of a Disorder
Depression: Affective Disorder
Symptoms of Depression
Emotional: Sadness; Depressed mood; Anhedonia; Orrtability
Physiological: Insomnia; Appetitive disturbance; Catatonia; Fatigue
Cognitive: Poor concentration; Delusions and hallucination with depression thene; Poor self esteem
Types of Depression
Unipolar: Low mood; Wothlessness; Single episodes, periodic, outbreaks and continum
Bipolar: Mood flucates vetween manic episodes and depressive episodes and normnality; Can be slow or rapid cycles of each state
Explanations of Depression
- Seligman- Behavioural
- Wender- Biological
- Lauren- Cognitive
Seligman- Learned helplessness
Method and Procedure: Lab; 2 conditions: 1) dog in a shuttle box with electrified floor wirh 2 compartments, one compartment would have electric shock the other one would not 2) Placed in shuttle box after being in a box where there was no escape from electric shock
Findings: All dogs in 1st condition escaped; 2/3 of 2nd condition dogs failed to jump to saftey
Conclusions: 'Dogs had learned to be helpless'; Associated electric shock with no escape = classical conditioning; Depression can be explained by learning via vicarious reinforcement
Wender
Aim: investigate contribution and environmental factors in mood disorders
Participants: Adoptive and biological relatives of 71 adult adoptees; Mean age 43.7 with mood disorder; 71 adoptees with mean age of 44 whom were psychologically normal; Removed from mothers at early age
Methodolgy: Psychiatric evaluation of relatives; Independent blind diagnosis of mental hospital and other official reecords
Results: 8x increase in unipolar depression among biological relatives; 15x increase in suicide among biological relatives of adopted adults
Conclusions: Significant genetic link between unipolar depression and suicide
Lauren Alloy
Aim: Investigate correlation between thinking patterns and depression
Method: longlitudinal study using questionaire
Participants: 500 American students
Procedure: Cognitive attitude questionaire; 5000 students; 619 negative thinking; 585 positive thinking; Monitored groups for 6 years
Findings: 17% negative thinking developed depression; 1% in low risk
Conclusions: Negative thinking positively correlated to depression; Supports cognitive approach
Treatment for Depression
- Lewinsohn- Coping with depression
- Karp and Frank- Combination therapy and depressed women
Lewinsohn- Coping with Depression
Aim: Evaluate efficacy of a 'coping disorder'
Method: Longlitudinal study; 69 adolescents; 15-18; Assessed by interview; Several depression measures
- Group 1: Only adolescents recieved the course
- Group 2: Adolescents revieved the course and their parents enrolled in a seperate parents' group
- Group 3: Control group = waiting list
Findings: Group 1 = 43% reduction; Group 2 = 48% reduction; Group 3 = 5% reduction
Conclusions: Efficacy of the 'coping with depression' course; Supports use of behavioural techniques used in conjugation with cognitive, biological and social methods
Karp and Frank
Aim: Compare drug treatment and non drug treatments for depression
Participants: Women diagnoses with depression; 9 peices of research from 1974 to 1992; 520 women
Design: Meta analysis; Independent measures design; Single drug treatment, single psychological treatment or combined with placebo
Procedure: Despression was analysed using depression inventories; Patients tested prior to treatment and after; Health practitioners used to assess participants due to nature of study
Findings: Psychological therapy did not increase effectiveness of drug therapy; Less attrition when combination of therpies used (more likely to continue with treatment if combination used)
Conclusions: Patient outcome not affected so much using combined therapy; Drug therapy is more effective on depression; Supports biological approach
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