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Overview of the Day . Evaluating psychotherapies Biological treatments Combined treatments Preventative approaches Evolutionary perspective. Evaluating Psychotherapies. How can we tell if they work? What do we mean by “work?” How people say they feel What therapists say
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Overview of the Day • Evaluating psychotherapies • Biological treatments • Combined treatments • Preventative approaches • Evolutionary perspective
Evaluating Psychotherapies • How can we tell if they work? • What do we mean by “work?” • How people say they feel • What therapists say • Outcomes: changes in behavior or results (frequency of smiling, socializing) • Problems with client testimonials and therapist’s opinions: • Selective perception and biased recall • Cognitive dissonance (convince themselves they didn’t waste money)* • No control group (how many people would have gotten better without therapy)
Meta-Analyses • Average client ends up better off than 80% of people on waiting list • 50% of untreated people also get better • Those not undergoing therapy improved, but those who underwent therapy improved more
Who Benefits from Therapy? • People who are likely to benefit: • Those with specific, clear-cut problems (e.g., phobia)* • People who are not likely to benefit: • Those with chronic schizophrenia or who want to change their personalities
Which Therapy Works Best? • Overall, no one form of therapy is consistently superior to others* • Individual or group therapy makes no difference • Education or training of therapist makes no difference • For specific some problems: • Behavior therapy works best for specific behavioral problems • Cognitive therapy works best for depression
Why do Therapies Work? • The belief in the treatment, the client’s expectations that she will get better • Warm caring relationship* • Empathy* • Fresh perspective
Biological Treatments • Reflect the view that psychological disorders are a pathology of the brain (particularly of neurotransmitters that carry messages from one neuron to the next) • Involve: medication, electro-convulsive therapy, and psycho-surgery
Psychotropic Medicines • How do they work? • Inhibit overly active neurotransmitters (those that are too sensitive) • Increase neurotransmitters that are under-active or are in short supply • Placebo effects (client’s expectation that he will improve by taking the medicine)
Anti-Psychotic Medicines • Treat schizophrenia and other psychotic states • Inhibit production of dopamine (e.g., thorazine) • Side effects: twitching (tongue, face, neck) • They are the most effective treatment for schizophrenia
Anti-Depressant Medicines • Treat depression and bi-polar syndrome • Increases production norepinephrine and serotonin (prozac; lithium) • Antidepressants tends to work for most depressed people (as long as they take the medicine) • Lithium works for about 80% of those with bi-polar disorder • Side effects: cosmetic psychopharmacology (avoid any distress, some of which may be functional), potentially toxic, can alter diet, make vision blurred, restlessness; short term, can be addictive)
Other Biological Approaches • Electric Light therapy • For treating mild depression, particularly seasonal affective disorder (SAD) • Generally works well • Electro-convulsive Therapy • Send electric impulses through brain • Used to treat severe depression • Not sure how it works, but it seems to be effective for treating severe depression • Psychosurgery • Surgically alter part of the brain • Lobotomy (severing tissue in the cerebral lobe) • Not effective in curing psychosis • Any surgery is is risky, and should be used as a last resort
Combined Treatments • Standard hospital treatment wards • Custodial care and drug treatment • Milieu therapy wards • Close interaction between staff and patients • Increased respect for patients (residents) • Heightened expectations • Democratic decision-making • Less reliance on drugs
Combined Treatments • Social learning therapy wards • Most of the elements of milieu therapy • Plus: directed effort to teach social skills • Success (i.e. live for at least 18 months outside of hospital) rates: • 97% of patients in social learning • 71 % in milieu • 46% in standard hospital ward:
Combined Treatments • A combination of therapy and medication is the most effective method for treating: • Depression • Bipolar disorder • Dissociation • Anxiety • Personality disorder
Preventive Approaches • Assumes that cause of mental illness resides more in stressful social situations* • Like physical illnesses (smallpox, malaria), mental illness can be solved by good public heath • Example: • Sexual dysfunction due to fatigue associated with dual careers and/or hectic pace of modern life • One study found that 16% of couples fail to have sex at least once a month • Is this a bit utopian? Can we remove stress from life?
Evolutionary Perspective • Some mental illnesses may be adaptive • Just as a fever is the body’s way of fighting infection, some mental illnesses are the mind’s way of coping with difficult situations* • Anxiety can prevent accidents • Depression can be a way of gaining new insights on behavior that has not worked
Summary of the Day • Evaluating psychotherapies • Biological treatments • Combined treatments • Preventative approaches • Evolutionary perspective