Introduction to Psychology - New Mexico's Flagship ...nlucas/Psych 105/Lecture Notes/Ch13.pdf ·...
Transcript of Introduction to Psychology - New Mexico's Flagship ...nlucas/Psych 105/Lecture Notes/Ch13.pdf ·...
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Chapter 13
Psychological Disorders
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Psychological Disorders
Psychological Disordera “harmful dysfunction” in which behavior is judged to be:
atypical--not enough in itselfdisturbing--varies with time and culturemaladaptive--harmfulunjustifiable--sometimes there’s a good reason
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Psychological Disorders
Medical Modelconcept that diseases have physical causescan be diagnosed, treated, and in most cases, curedassumes that these “mental” illnesses can be diagnosed on the basis of their symptoms and cured through therapy, which may include treatment in a psychiatric hospital
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Psychological Disorders
Bio-Psycho-Social Perspectiveassumes that biological, sociocultural, and psychological factors combine and interact to produce psychological disorders
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Psychological Disorders
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Classifying Psychological Disorders
DSM-IVAmerican Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition)a widely used system for classifying psychological disorderspresently distributed as DSM-IV-TR (text revision)
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Anxiety Disorders
Anxiety Disordersdistressing, persistent anxiety or maladaptive behaviors that reduce anxiety
Generalized Anxiety Disorderperson is tense, apprehensive, and in a state of autonomic nervous system arousal
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Anxiety Disorders
Panic Disordermarked by a minutes-long episode of intense dread in which a person experiences terror and accompanying chest pain, choking, or other frightening sensation
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Anxiety Disorders
Phobiapersistent, irrational fear of a specific object or situation
Obsessive-Compulsive Disorderunwanted repetitive thoughts (obsessions) and/or actions (compulsions)
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Anxiety DisordersCommon and uncommon fears
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Anxiety Disorders
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Anxiety Disorders
PET Scan of brain of person with obsessive-compulsive disorderHigh metabolic activity (red) in frontal lobe areas involved with directing attention
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Dissociative Disorders
Dissociative Disordersconscious awareness becomes separated (dissociated) from previous memories, thoughts, and feelings
Dissociative Identity Disorderrare dissociative disorder in which a person exhibits two or more distinct and alternating personalitiesformerly called multiple personality disorder
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Personality Disorders
Personality Disordersdisorders characterized by inflexible and enduring behavior patterns that impair social functioningusually without anxiety, depression, or delusions
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Personality Disorders
Antisocial Personality Disorderdisorder in which the person (usually man) exhibits a lack of conscience for wrongdoing, even toward friends and family membersmay be aggressive and ruthless or a clever con artist
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Mood Disorders-Depression
Boys who were later convicted of a crime showed relatively low arousal
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Personality DisordersPET scans illustrate reduced activation in a murderer’s frontal cortex
Normal Murderer
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Mood Disorders
Mood Disorderscharacterized by emotional extremes
Major Depressive Disordera mood disorder in which a person, for no apparent reason, experiences two or more weeks of depressed moods, feelings of worthlessness, and diminished interest or pleasure in most activities
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Mood Disorders
Manic Episodea mood disorder marked by a hyperactive, wildly optimistic state
Bipolar Disordera mood disorder in which the person alternates between the hopelessness and lethargy of depression and the overexcited state of maniaformerly called manic-depressive disorder
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Mood Disorders-Depression
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Mood Disorders-Suicide
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Mood Disorders-Bipolar
PET scans show that brain energy consumption rises and falls with emotional switches
Depressed state Manic state Depressed state
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Mood Disorders-Depression
Altering any one component of the chemistry-cognition-mood circuit can alter the others
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Mood Disorders-Depression
The vicious cycle of depression can be broken at any point
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Schizophrenia
Schizophrenialiteral translation “split mind”a group of severe disorders characterized by:
disorganized and delusional thinkingdisturbed perceptionsinappropriate emotions and actions
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Schizophrenia
Delusionsfalse beliefs, often of persecution or grandeur, that may accompany psychotic disorders
Hallucinationssensory experiences without sensory stimulation
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Schizophrenia
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Schizophrenia
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Schizophrenia
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Schizophrenia
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Rates of Psychological Disorders