Personality Disorders and Diatheses
DMS-IV and Personality Disorder
-General criteria in DSM-IV:
-An enduring pattern of inner experience and behaviour that deviates
from norms and:
a) is manifest in two or more of the following areas:
b) is inflexible and pervasive
c) leads to clinically significant distress or impairment
d) is stable and of long duration
-Clusters and Classifications
-Odd Eccentric Cluster
-paranoid, schizoid, and schizotypal
-Dramatic Flamboyant Cluster
-antisocial, borderline, histrionic, and narcissistic
-Anxious Fearful Cluster
-avoidant, dependent, and obsessive-compulsive
Traits or Types?
-the construct is not equal to the set of criteria for diagnosis
-personality as a diathesis for mental disorder
2. The question: Is the construct continuous or discontinuous?
-Continuous: “dimension”, ”continuum”, ”quantity”, ”graduated”
-All carry some risk. Some carry more risk than others.
-Discontinuous: “category”, ”quality”, ”all-or-nothing”
-Some are at risk; others are not.
-What general themes emerge from history?
1. Character or personality was defined in a continuous dimensional
2. Slight imbalance determined prevailing character
-vulnerability to mental illness
3. Serious imbalance gave rise to mental disorders.
-physical and psychological pathology.
The Diathesis for Schizophrenia
1. Theory: Diathesis is dimensional -Hans Eysenck:
a) normal personality is dimensional
b) three dimensions
-Psychoticism: aggressive, cold, egocentric,
impersonal, impulsive, antisocial, unempa