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

Mood Disorders Illustrate Emotional Extremes Mood Disorders are characterized by emotional extremes and come in variety of forms: 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

Depression Is Pervasive Nearly everyone will experience at least some type of mild depression in their life often due to some external sad event. 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.. 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.

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. 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.

Gender and Depression Percentage of population aged experiencing major depression at some point In life USA Edmonton Puerto Paris West Florence Beirut Taiwan Korea New Rico Germany Zealand Around the world women are more susceptible to depression

Gender and Depression Age in Years 10% Percentage depressed Females Males

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

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

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

Mood Disorders and Suicide Suicides per 100,000 people Males Females The higher suicide rate among men greatly increases in late adulthood

Explaining Mood Disorders 1. Many behavioral and cognitive changes accompany depression  Unmotivated, grades decreases, no sleep ……. 2. Depression is widespread 3. Women at greater risk Women more passive Women more passive Men more active Men more active 4. Depression usually goes away 5. Stressful events usually precede depression 6. Depression is striking more and earlier

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

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

Dissociative Disorders Include Amnesia (NOT IN BOOK) Unlike other forms of memory loss dissociative memory loss is NOT caused by brain trauma. 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. 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. 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. Dissociative (Psychogenic) Amnesia: is the loss of a person’s identity. According to Freud, caused by intense anxiety. Serves as an escape.

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. 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. Usually temporary and according to some researchers is caused by traumatic/stressful episode.

Warm Up Identify the following disorders: 1. Seasonal Affective Disorder 2. Bipolar Disorder 3. Major Depressive Disorder 4. Dysthymic 5. Dissociative Identity 6. Dissociative Fugue 7. Dissociative Amnesia

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

Background 1 in 100 ppl get it 1 in 100 ppl get it Typically appears in teens and twenties Typically appears in teens and twenties –Men before 25 –Women Men and women affected equally Men and women affected equally om/watch?v=Qzd1KE siQVI om/watch?v=Qzd1KE siQVI om/watch?v=Qzd1KE siQVI om/watch?v=Qzd1KE siQVI om/results?search_qu ery=+schizophrenia om/results?search_qu ery=+schizophrenia om/results?search_qu ery=+schizophrenia om/results?search_qu ery=+schizophrenia om/watch?v=7s_- gFm-7Ao om/watch?v=7s_- gFm-7Ao

Positive symptoms involve the presence of inappropriate perceptions behavior. 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. Negative symptoms involves the absence of appropriate behavior. –Ex: toneless voices, expressionless, rigid, mute, etc. Positive vs. Negative Symptoms

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

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

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

Schizophrenia and Genetics Lifetime risk of developing schizophrenia for relatives of a schizophrenic General population SiblingsChildrenFraternal twin Children of two schizophrenia victims Identical twin

Personality Disorders Personality Disorders refer to inflexible and enduring behavior patterns that impair social functioning. Personality Disorders refer to inflexible and enduring behavior patterns that impair social functioning. Variety of Types: 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.

Personality Disorder Types Continued 3. Borderline Personality: characterized by mood instability and poor self-image. Trouble maintaining relationships. 4. Histrionic Personality: must be center of attention; constantly interrupts others. 5. Narcissistic Personality: very self centered personality. Will exaggerate achievements.

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. Anti-Social Personality Disorder: characterized by a lack of conscience for wrong-doing toward anyone. Often aggressive or con artists and fearless. Often aggressive or con artists and fearless. Murderers like Charles Manson. Murderers like Charles Manson.

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

Influences on Criminals Percentage of criminal offenders Total crimeThieveryViolence Childhood poverty Obstetrical complications Both poverty and obstetrical complications

Percentage of Americans Who Have Ever Experienced Psychological Disorders Disorder White Black Hispanic Men Women Totals Ethnicity Gender Alcohol abuse or dependence 13.6% 13.8% 16.7% 23.8% 4.6% 13.8% Generalized anxiety Phobia Obsessive-compulsive disorder Mood disorder Schizophrenic disorder Antisocial personality disorder