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Diagnosis Diagnosis: Labeling a set of symptoms. Does the problem meet the criteria for a psychological disorder? Syndrome: a set of behavioral or psychological symptoms that tends to occur together.
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Diagnostic & Statistical Manual of Mental Disorders (DSM) Compiled by the American Psychiatric Association Editions: DSM (1952), II (1968), III (1980), III-R (1987), IV (1994), IV- TR(2000) The official manual for diagnosing psychological disorders in U.S. since 1952. Provides specific, concrete criteria for each disorder.
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Assumptions of the DSM Medical Model – psychological disorders as “diseases” Atheoretical Orientation – descriptive rather than explanatory Categorical Approach – disorders are grouped into discrete categories Prototypical Approach – identifies certain essential characteristics, while allowing for nonessential variations Multiaxial System – assesses 5 axes or areas of functioning
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The 5 Axes Axis I: Clinical Disorders - all major disorders and adjustment disorders Axis II: Personality Disorders & Mental Retardation - lifelong, chronic conditions Axis III: General Medical Conditions - causes, consequences, or coincidental Axis IV: Psychosocial & Environmental Stressors - causes, consequences, or coincidental Axis V: Global Assessment of Functioning – rating of overall level of functioning
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Axis I Developmental/Childhood Disorders Cognitive Disorders (Delirium, Dementia, Amnesia, etc.) Substance-Related Disorders Schizophrenia & Other Psychotic Disorders Mood Disorders Anxiety Disorders Disorders due to a General Medical Condition
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Axis I continued Somatoform Disorders Factitious Disorders Dissociative Disorders Sexual & Gender Identity Disorders Eating Disorders Sleep Disorders Adjustment Disorders Impulse Control Disorders “V” Codes
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Axis II Paranoid Schizoid Schizotypal Antisocial Borderline Histrionic Narcissistic Avoidant Dependent Obsessive-Compulsive Mental Retardation Personality Disorders:
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Axis IV: Psychosocial & Environmental Problems Primary support group Social environment Educational Occupational Housing Financial Access to health care services Legal system/ crime
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Axis V: Global Assessment of Functioning 91-100 no sx, superior functioning 81-90 absent or minimal sx, good functioning 71-80 slight, transient sx or impairment in functioning 61-70 mild sx & impairment in functioning 51-60 moderate sx & impairment in functioning 41-50 serious sx & impairment in functioning 31-40 major impairment in functioning, difficulties with reality testing or communication 21-30 serious impairment in communication & judgment, psychotic sx, inability to function 11-20 danger to self or others, gross impairment in communication 1-10 persistent danger to self or others, inability to maintain hygiene
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Issues to Consider in Diagnosis Culture & Ethnicity Gender Age Social Class The Danger of Labeling Stigmatization
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Psychological Assessment The systematic evaluation and measurement of the psychological, biological, and social factors that have the most influence on the person’s functioning. In an individual presenting with a possible psychological disorder, information is gathered about the person’s symptoms.
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Clinical Interview Psychological symptoms: current & past Family history of psych problems Coping strategies Life events: recent & significant Social support and functioning Culture, ethnicity, religion, SES Medical conditions & medications Drug & alcohol use Intellectual and cognitive functioning Motivation for treatment
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The Clinical Interview Unstructured Interviews Semi-Structured & Structured Interviews Structured Clinical Interview for the DSM (SCID) Diagnostic Interview Schedule (DIS) Limitations Resistance to being assessed or disclosing information Biased presentation of information – omission, distortions, outright lying
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Mental Status Exam 1) Appearance & Behavior – appearance, grooming, attire, mannerisms, posture, expressiveness, activity level, bodily movements 2) Thought Processes – rate, flow, & continuity of speech, thought content, obsessions, delusions 3) Mood & Affect – expression, intensity, appropriateness, reactivity, range, & personal experience of emotion. 4) Intellectual Functioning – rough estimate of cognitive strengths & weaknesses based on vocabulary, memory, attention, insight, knowledge. 5) Sensorium – general awareness of surroundings in terms of person, place, & time.
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BEHAVIORAL ASSESSMENT Purpose: To identify & monitor target behaviors and to determine the factors that influence them. Methods: Behavioral Observation – naturalistic vs. analogue, structured vs. unstructured Behavioral Self-Report & Behavioral Self- Monitoring – assessing one’s thoughts, feelings & behaviors in specific situations & contexts Limitations: reactivity
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Personality & Diagnostic Testing: Self-Report Inventories/Questionnaires Purpose: -to assess symptoms & diagnose disorders -to assess one’s typical ways of thinking, feeling, and behaving Examples: Beck Anxiety Inventory (BAI) Hamilton Rating Scale for Depression (HRSD) Minnesota Multiphasic Personality Inventory (MMPI-2) Millon Clinical Multiaxial Inventory (MCMI-III) Myers Briggs Type Indicator (MBTI)
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Projective Tests Examples: Rorschach Inkblot Test; Thematic Apperception Test; Sentence Completion Test; Draw-A-Person Test Purpose: assesses person’s underlying concerns, conflicts, and desires Strengths: doesn’t rely on person’s level of self- insight or willingness to share Weaknesses: usefulness for diagnosis, reliability and validity, subjective interpretation
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Intelligence Testing Purposes: Assess cognitive strengths and weakness Detect mental retardation or brain damage Identify special needs or gifted children Screening in occupational or military settings Examples: Wechsler Intelligence Scales (WAIS-III, WISC-III) Stanford-Binet Intelligence Test (SB-IV) Limitations: Differing conceptions of intelligence Cultural and class bias
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Psychophysiological Assessment Electroencephalogram (EEG) – measures brain wave patterns & electrical activity in the brain Electrocardiogram (EKG) – measures cardiovascular functioning Electromyography (EMG) – measures muscular tension Galvanic Skin Response (GSR) – measures electrodermal response, e.g. sweat gland activity
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Neuropsychological Assessment Purpose: Assess motor skills, sensory & perceptual abilities, language, attention, concentration, memory, & learning Detect brain abnormalities, damage, & deterioration Examples: Halstead-Reitan Neuropsych Battery Luria-Nebraska Neuropsych Battery
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Neuroimaging Techniques Purpose: to test for brain activity, structure, & damage, e.g. injury or tumor Computerized Tomography (CT/CAT scan) – produces an x-ray image of the structure of the brain Magnetic Resonance Imaging (MRI) – produces high resolution pictures of brain anatomy, activity, and functioning Positron Emission Tomography (PET) - displays brain activity & metabolism
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Problems in Assessment Self-Report Issues Lack of self-awareness Discomfort with self-disclosure Cultural Bias Language barriers Cultural differences in the manifestation of disorders & presentation of symptoms
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