Chapter 15 pt. 2: Mood Disorders, Dissociation, Schizophrenia, and Personality Disorders

1. Chapter 15 pt. 2: Mood Disorders, Dissociation, Schizophrenia, and Personality Disorders

2. Mood Disorders Illustrate Emotional Extremes • Mood Disorders are characterized by emotional extremes and come in variety of forms: • 1. Major Depressive Disorder • 2. Dysthymic Disorder • 3. Seasonal Affective Disorder • 4. Bipolar Disorder

3. Explaining Mood Disorders • Many behavioral and cognitive changes accompany depression • Unmotivated, grades decreases, no sleep……. • Depression is widespread • Women at greater risk • Women more passive • Men more active • Depression usually goes away • Stressful events usually precede depression • Depression is striking more and earlier

4. Explaining Mood Disorders • Genetic • Mood disorders are genetic • Have not found a single “depression” gene • The Brain • Decrease in serotonin • Lack of activity in frontal lobe

5. Depression Is Pervasive • Nearly everyone will experience at least some type of mild depression in their life often due to some external sad event. • Major Depressive Disorder:differentiates itself from mild depression since a person has depressed mood, feelings of worthlessness, and diminished interest FOR NO EXTERNAL REASON for 2 or more weeks. . • Dysthymic Disorder:less severe down swing in mood but lasts for 2 or more years.

6. Depression • Seasonal Affective Disorder: also known as “winter depression.” Nearly unknown in the tropics, but measurably prevalent in higher latitudes especially in polar areas where daylight becomes rare in winter.

7. Around the world women are more susceptible to depression 20 15 10 5 0 Percentage of population aged 18-84 experiencing major depression at some point In life USA Edmonton Puerto Paris West Florence Beirut Taiwan Korea New Rico Germany Zealand Gender and Depression

8. 10% 8 6 4 2 0 Percentage depressed Females Males 12-17 18-24 25-34 35-44 45-54 55-64 65-74 75+ Age in Years Gender and Depression

9. Brain chemistry Cognition Mood Effects on Depression • Neurotransmitter, serotonin is scarce during depression. • Cognitively, people tend to have a negative explanatory outlook which helps feed depression and lower mood.

10. 1 Stressful experiences 4 Cognitive and behavioral changes 2 Negative explanatory style 3 Depressed mood Vicious Cycle of Depression • Breaking any of the links can often help eliminate depression.

11. Bipolar Disorder • Bipolar Disorder: mood disorder in which person alternates between hopelessness and lethargy of depression and the overexcited, hyperactive, optimistic state of mania. • Used to be known as Manic Depressive Disorder. • 1% VS.

12. 70 60 50 40 30 20 10 0 Suicides per 100,000 people The higher suicide rate among men greatly increases in late adulthood 15-24 25-34 35-44 45-44 55-64 65-74 75-84 85+ Females Males Mood Disorders and Suicide

13. Dissociative Disorders • Symptoms • Memory loss (amnesia) of certain time periods, events and people • Mental health problems, including depression and anxiety • A sense of being detached from yourself (depersonalization) • A perception of the people and things around you as distorted and unreal (derealization) • A blurred sense of identity

14. Dissociative Disorders • Causes • children subjected to chronic physical, sexual or emotional abuse • a home environment that is otherwise frightening or highly unpredictable. • A child who learns to dissociate in order to endure an extended period of his or her youth may use this coping mechanism in response to stressful situations throughout life.

15. Dissociative Disorders • In general Dissociative Disorders are disorders in which a person’s conscious awareness becomes separated (dissociated) from previous memories and feelings. • Dissociative Identity Disorder: used to be known as multiple personality disorder. Rare disorder where person exhibits 2 or more distinct and alternating personalities.

16. Dissociative Disorders Include Amnesia (NOT IN BOOK) • Unlike other forms of memory loss dissociative memory loss is NOT caused by brain trauma. • Anterograde Amnesia:loss of memory after a traumatic event. Cant learn new facts that occur after incident. • Retrograde Amnesia: loss of memories from before a traumatic event. Cant remember anything prior to the incident. • Dissociative (Psychogenic) Amnesia: is the loss of a person’s identity. According to Freud, caused by intense anxiety. Serves as an escape.

17. Dissociation Disorders (NOT IN BOOK) • Dissociative (Psychogenic) Fugue State: when person with amnesia physically moves away from home and takes on a new identity somewhere else. • Usually temporary and according to some researchers is caused by traumatic/stressful episode.

18. Schizophrenia Is Not One Disorder • Schizophrenia is a group of disorders characterized by disorganized and delusional thinking, disturbed perceptions, and inappropriate emotions. • Schizophrenics often experience hallucinations (false perceptions) and delusions (false beliefs of grandeur or persecution).

19. 1 in 100 ppl get it Typically appears in teens and twenties Men before 25 Women 25-45 Men and women affected equally http://www.youtube.com/watch?v=xEXyqe85cuA&safety_mode=true&persist_safety_mode=1&safe=active http://www.youtube.com/watch?v=4LScZZOkeIs&safety_mode=true&persist_safety_mode=1&safe=active Background

20. Positive vs. Negative Symptoms • Positive symptoms involve the presence of inappropriate perceptions behavior. • Ex: Hallucinations, Delusions, “Word Salad,” Inappropriate laughter, etc. • Negative symptoms involves the absence of appropriate behavior. • Ex: toneless voices, expressionless, rigid, mute, etc.

22. Explaining Schizophrenia: Brain Chemistry • Most psychologists believe disorganized thinking and hallucinations is caused by a breakdown in selective attention. • Selective attention breakdown is most likely caused by an overabundance of the neurotransmitter dopamine. • Abnormal brain chemistry

23. What Causes it? • Don’t really know…. Maybe….. • Low birth weight • Oxygen deprivation • Viral infections while in the womb • Genetics definitely play a role • Environment or parenting is not thought to cause it • Environmental events may trigger it

24. Warning Signs…… • A mother who whose schizophrenia was severe and long lasting • Birth complications • Separation from parents • Short attention span and poor muscle coordination • Disruptive or withdrawn behavior • Emotional unpredictability • Poor peer relations and solo play

25. 40 30 20 10 0 Lifetime risk of developing schizophrenia for relatives of a schizophrenic General population Siblings Children Fraternal twin Children of two schizophrenia victims Identical twin Schizophrenia and Genetics

26. Personality disorders • Symptoms • Frequent mood swings • Stormy relationships • Social isolation • Angry outbursts • Suspicion and mistrust of others • Difficulty making friends • A need for instant gratification • Poor impulse control • Alcohol or substance abuse

27. Personality disorders • Causes • The causes of personality disorders are not fully known. • Nurture- possible causes include trauma in early childhood such as abuse, violence, inadequate parenting and neglect. • nature- Neurological and genetic factors may also play a part

28. Personality Disorders • Personality Disorders refer to inflexible and enduring behavior patterns that impair social functioning. • Variety of Types: • 1. Avoidant Personality: avoids personal interaction because they fear they are inadequate or socially inept. • 2. Paranoid Personality: constant distrust of others; believe others are out to get you.

29. Personality Disorder Types Continued • Borderline Personality:characterized by mood instability and poor self-image. Trouble maintaining relationships. • Histrionic Personality: must be center of attention; constantly interrupts others. 5.Narcissistic Personality:very self centered personality. Will exaggerate achievements.

30. Antisocial Personality Does Not Mean Shyness/Not Good With People • Anti-Social Personality Disorder:characterized by a lack of conscience for wrong-doing toward anyone. • Often aggressive or con artists and fearless. • Murderers like Charles Manson.

31. Murderer Normal Explaining Antisocial Personality • PET scans illustrate reduced activation in a murderer’s frontal cortex

32. 35 30 25 20 15 10 5 0 Percentage of criminal offenders Total crime Thievery Violence Both poverty and obstetrical complications Childhood poverty Obstetrical complications Influences on Criminals

33. Percentage of Americans Who Have Ever Experienced Psychological Disorders EthnicityGender Disorder White Black Hispanic Men Women Totals Alcohol abuse or dependence 13.6% 13.8% 16.7% 23.8% 4.6% 13.8% Generalized anxiety 3.4 6.1 3.7 2.4 5.0 3.8 Phobia 9.7 23.4 12.2 10.4 17.7 14.3 Obsessive-compulsive disorder 2.6 2.3 1.8 2.0 3.0 2.6 Mood disorder 8.0 6.3 7.8 5.2 10.2 7.8 Schizophrenic disorder 1.4 2.1 0.8 1.2 1.7 1.5 Antisocial personality disorder 2.6 2.3 3.4 4.5 0.8 2.6