PSYCH257 Lecture : Abnormal Psychology 2nd CDN edition Chapter 12
16 Oct 2011
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Enduring patterns of perceiving, relating to, and thinking about env. Exhibited in a wide range of social/personal contexts; inflexible, maladaptive. Pds are chronic, pervade all aspects of person"s life; may distress affected person or relative, friend etc. Pds are in axis ii: traits more ingrained/inflexible; less likely to be successfully modified. Difficulty in degree: extreme versions of problems many people experience on temp. basis. Diff. dimensions not categories: (like using cms and inches (dim) not tall, short" for height (cat)) Pds=extremes on one+ personality dimensions; due to dsm, people end up viewed as categories. Thus dsm needs dimensional model; idea for five-factor" model of personality; help distinguish pds. I)extraversion; ii)agreeableness; iii) conscientiousness; iv)neuroticism; v) openness to experience. Pds into 3 groups, clusters; a: odd, eccentric; b: dramatic, emotional, erratic; c: anxious, fearful. Us studies: pds in 0. 5%-2. 5% of gen. pop. ; 10-30% in inpatient setting; 2-10% in outpatient. Less rare:(1-4%): paranoid, schizotypal histrionic, dependent, ocd pds.
