Presentation on theme: "Psychological Disorders Ch 13 Psyc103 J. Wright. T/F: 40% of people develop some type of mental disorder in their lifetime Mental disorders – 2 nd greatest."— Presentation transcript:
Psychological Disorders Ch 13 Psyc103 J. Wright
T/F: 40% of people develop some type of mental disorder in their lifetime Mental disorders – 2 nd greatest contributor to shortened life –source of significant human suffering throughout the ages of patient of family of community Madness – lunacy – insanity –thought by some to be a curse (and/or gift) from god(s) to be a source of criminality (moral insanity) to be a natural symptom of a sick society
T/F: Only recently has mental illness become viewed as disorder or disease (medical model). Benefits? Have natural causes Have symptoms Worthy of care (potentially) curable Downsides?
what is abnormal? All mental disorders involve abnormal mental states and behaviors. –That is, they deviate in some way from the norm. But, not all mental states/behaviors that deviate from the norm should be considered mental disorders. With 40% of population developing disorder – what is the norm and what isn’t? –Szaz – The Myth Of Mental Illness Not a good definition (at least not by itself)
key elements of mental disorders Mental states/behaviors that deviate from norms AND Involves disturbances in behavior, thought, or emotion Stems from internal dysfunction –biological, psychological, both
Q: When is something a disturbance? When is it a dysfunction? Involves significant personal distress or impairment. What if the person isn’t distressed? –e.g. Camille Claudel –Historically, what has mattered more is other people’s distress.
GAF Global Assessment of Functioning Lack of self-care Inability to communicate Inability to interact Impaired judgment Can’t function in daily society –Work, school, friends Danger to self/others Avoided by others
Categories of Metal Disorders Distortion of Sensation Perception Emotions –Levels –States Behavioral outcomes
issues concerning causation Diathesis-stress model –Gene/environment interaction –Diathesis: internal predisposition –Stress: external trigger Epigenetics –Environmental influence on genetic expression
anxiety disorders Generalized anxiety disorder (GAD) –2x as many women –General fear – no specific source Social anxiety disorder Separation anxiety disorder Which of the following is not a form of anxiety disorder? –A) Panic disorder –B) Phobic disorder –C) Obsessive-compulsive disorder –D) Post-traumatic stress disorder –E) none of the above
Panic disorder –Attacks of intense terror High sensitivity to anxiety –Agoraphobia Phobic disorder –Strong fear and avoidance of particular objects/situations Obsessive-compulsive disorder –Overcome with obsessive thoughts/compulsive actions –Highly ritualized behaviors as coping mechanisms Contamination Order/Organization
PTSD Post-traumatic stress disorder Prevalent in high stress situations –Poverty –Discrimination –Abuse –War zones Unpredictable traumatic experiences Imbalance in neurotransmitters –Damage to hippocampus
mood disorders Major depressive disorder –Intense feelings of despair/helplessness, lethargy, gloom, lack of interest, lack of pleasure –3-6 months in duration –Categories: Melancholic, Psychotic, Catatonic –Postpartum, Seasonal affective disorder Dysthymia Common factors involved in depression –A) biological –B) genetic –C) psychological –D) all of the above
contributors Biological factors –Neurotransmitters – norepinephrine/serotonin –Neurological processing of emotions Reduced activation in left dorsolateral PFC Increased activation in right dorsolateral PFC Problems with negative emotion regulation Psychological factors –Helplessness theory Negative attributes/experiences Internal, stable, global –Q: Does depression cause negative thoughts? Or do negative thoughts cause depression?
analytic-rumination hypothesis “Pain or suffering of any kind…is well adapted to make a creature guard itself against any great or sudden evil…leading to the course of action which is most beneficial.” –Darwin Depression is like a fever that helps the immune system fight off infection. Withdrawal from distractions Extended rumination about problem –Hyperactivation of left ventolateral PFC leads to increased analytic attention – intense, focused deliberation Negative moods lead to better decision making
analytic-rumination hypothesis Heightened creativity & problem-solving –artists/writers/philosophers 8x more likely to suffer from depression –depression intertwined with creative “cognitive style” –persistence, obsessive/relentless focus “Unfortunately, this type of thinking is often inseparable from the suffering…If you’re on the cutting edge, then you’re going to bleed.” –Nancy Andreasen, neuroscientist Problems with this view?
dissociative disorders Loss or fragmentation of “self” –Cognition, emotion, perception, memory Coping mechanism for traumatic events Depersonalization disorder –Feeling of disconnection from self; unreality Dissociative amnesia –Impairment of recall resulting from emotional trauma –Retrograde vs. anterograde amnesia Dissociative fugue –Impaired recall of past, abandonment of past –Assumption of new identity
Dissociative identity disorder –T/F: Same thing as multiple personality disorder http://www.youtube.com/watch?v=gfiB82OUXf0& NR=1&feature=fvwphttp://www.youtube.com/watch?v=gfiB82OUXf0& NR=1&feature=fvwp http://www.youtube.com/watch?v=7iHJfIH20TY Cause? –Severe childhood trauma/abuse –Split/dissociation –Not associated with SES (middle-income families)
Schizophrenia Eugen Bleuler (1857-1939) – Schizophrenia Abnormalities in perception and expression of reality –Hallucinations –Delusions –Disorganized speech, thinking, and behavior Onset typically occurs in young adulthood Contributory factors –Genetics –Neurobiology: increased dopamine Reduction in brain mass (5-10% over a decade) –Early environment (trauma)
Subtypes of schizophrenia Paranoid –Delusions, hallucinations Catatonic –Stupor or disorganized, purposeless behavior Disorganized –Thought disorder, flat affect Child-onset schizophrenia –Related to puberty induced brain development
Personality disorders Antisocial personality disorder –"...a pervasive pattern of disregard for, and violation of, the rights of others that begins in childhood or early adolescence and continues into adulthood."[[ –history of conduct disorder –sociopath and psychopath –one study of 22,790 prisoners 47% of men and 21% of women were diagnosed with APD –less activity in amygdala and hippocampus to words that elicit fear in non-APD
Behavioral markers Even though antisocial personality disorder cannot be diagnosed before adulthood, the presence of three behavioral markers, known as the Macdonald triad, can be found in some children who go on to develop ASPD.Macdonald triad –Bedwetting –Abuse of animals –Pyromania
Diagnosis Three or more of the following are required: –Failure to conform to social norms with respect to lawful behaviors as indicated by repeatedly performing acts that are grounds for arrest; –Deceitfulness, as indicated by repeatedly lying, use of aliases, or conning others for personal profit or pleasure; –Impulsivity or failure to plan ahead; –Irritability and aggressiveness, as indicated by repeated physical fights or assaults; –Reckless disregard for safety of self or others; –Consistent irresponsibility, as indicated by repeated failure to sustain consistent work behavior or honor financial obligations; –Lack of remorse, as indicated by being indifferent to or rationalizing having hurt, mistreated, or stolen from another.
Characteristics Persistent lying or stealing Superficial charmSuperficial Apparent lack of remorse or empathy; inability to care about hurting othersremorseempathy Inability to keep jobs or stay in school Impulsivity and/or recklessness Lack of realistic, long-term goals -- an inability or persistent failure to develop and execute long-term plans and goals Inability to make or keep friends, or maintain relationships such as marriage Poor behavioral controls -- expressions of irritability, annoyance, impatience, threats, aggression, and verbal abuse; inadequate control of anger and temper Narcissism, elevated self-appraisal or a sense of extreme entitlementNarcissismentitlement A persistent agitated or depressed feeling (dysphoria)dysphoria A history of childhood conduct disorders Recurring difficulties with the law Tendency to violate the boundaries and "rights" of others Substance abuse Aggressive, often violent behavior; prone to getting involved in fights Inability to tolerate boredom Disregard for the safety of self or others People with a diagnosis of antisocial personality disorder often experience difficulties with authority figures.