personality disorder. Therefore, the diagnosis of
personality disorder is influenced by a
combination of social and economic factors,
gender-linked role expectations and childhood
social injury, psychological manifestations of
which are often present in childhood and early
adolescence (Rutter
et al
., 1999). This triple
combination is also at work in increasing the
chances of people having other problems, such
as substance misuse and chronic depression or
anxiety, which overlap with, and sometimes
contribute to, the diagnosis of personality
disorder.
Personality disorder may, therefore, be
conceptualised within a stress vulnerability
model. This model suggests that each individual
has a different level of vulnerability to the
development of psychopathological experiences.
Individuals vary in their biological and
psychological resilience to stress and to become
vulnerable to stress must have experienced
environmental stressors. If an individual’s
vulnerability is great, low levels of environmental
stress might be enough to cause problems. If the
individual is more resilient, problems will
develop only when high levels of environmental
stress are experienced.
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