Models of Abnormal Psychology
- Created by: Kayleigh Jones
- Created on: 04-04-11 15:23
Models help explain potential cause, maintenance, prognosis and treatment of psychological disorders and mental illness.
2 paradigms - Psychological vs. Biological
Models within paradigms:
Psychological
- Psychodynamic - Unconscious motives and thoughts
- Behavioural - Maladaptive behaviour
- Cognitive - Disordered thinking
- Cognitive-Behavioural
- Humanistic - Desire for self-fulfillment (not in exam)
Contrasts with
Biological
See Psychological disorders as an illness. Use drugs to treat.
- Genetics - heritability, predisposition
- Neuroscience - brain biology
- Brain structure - functions implicated
Biopsychosocial Model
Psychodynamic Model
Freud - pioneer of psychodynamic model
Irrational thought (cognitive)
Maladaptive behaviour (behavioural)
The unconscious mind buries unpleasant memories/bad thoughts
Repressed thoughts need to be expressed
Engages in dreams, fantasies and careless talk
Psychoanalysis seeks to uncover repressed thoughts and evaluate them within the conscious mind
6 Defence Mechanisms
- Repression
- Regression
- Reaction formation
- Denial
- Displacement
- Projection
Defense mechanisms work by distorting the id impulses into acceptable forms, or by unconscious or conscious blockage of these impulses.
Psychological disorders are a result of internal unconscious conflict
The unconscious mind has 3 integral parts - ID, EGO, SUPEREGO
- ID - Instinct, libido, sexual energy, death, aggressive drives, pleasure principle, no morals, selfish
- EGO - Keeps the ID in check, reality principle, negotiates some expression of ID
- SUPEREGO - Conscience, rules that govern society
They compete for conflicting human goals - ID demands vs. EGO controls
Conflict = anxiety
Psychopathology
Psychodynamic Treatments
Psychoanalysis
- Explores the unconscious mind
- Free association
- Catharsis
- Brief Psychodynamic Therapy (BPT)
- Interpersonal Therapy
Psychodynamic Critique
Strengths
- Human personality
- Talking cures
- Optimism
- Effective treatment (Crits-Christoph, 1992)
Limitations
- Lacks empirical evidence
- Objective
- Over-emphasis on sex drives and unconscious mind
- Underplays motivation and personal fulfillment
- Too much focus on traits, not situation
Behavioural Model
Challenges Psychodynamic
Acknowledged in the early 1900's
Observable behaviour vs. subjectivity
Assumption that behaviour is learned
Environment creares abnormal behaviour therefore change environment to change behaviour
Classical and operant conditioning
Stimulus and reinforcement
Classical conditioning (Pavlov, 1927)
- UCS = UCR - NS +UCS = CS = CR
- Many phobias caused by classical conditioning
- Many anxiety disorders can be cured through classical conditioning via exposure to CR without CS
Operant conditioning (Skinner)
- Reinforcement (positive/negative)
- Behaviour eliminated by removing reinforcement
- Phobias maintained by operant conditioning
Behavioural Critique
Strengths
- Explains onset, maintenance and extinction
- Therapy successful (Anthony and Barlow, 2002 - CC) (Lazarus et al, 1965 - OC)
- Treatment widely used (Wilson, 2008)
- 10% of all therapy is behavioural
- Easily tested empirically
Limitations
- Therapy only focusses on…
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