Vulnerability / predisposition
In the diathesis-stress model, a biological or genetic vulnerability or predisposition (diathesis) interacts with the environment and life events (stressors) to trigger behaviors or psychological disorders. The greater the underlying vulnerability, the less stress is needed to trigger the behavior/disorder. Conversely, where there is a smaller genetic contribution greater life stress is required to produce the particular result. Even so, someone with a diathesis towards a disorder does not necessarily mean they will ever develop the disorder. Both the diathesis and the stress are required for this to happen.
Reformulation
The diathesis-stress model has been reformulated in the last 20 years as the stress-vulnerability-protective factors model, particularly by Dr. Robert P. Liberman and his colleagues in the field of psychiatric rehabilitation.
Effects
This model has had profound benefits for people with severe and persistent mental illnesses. It has stimulated research on the common stressors that people with disorders such as schizophrenia experience. More importantly, it has stimulated research and treatment on how to mitigate this stress, and therefore reduce the expression of the diathesis, by developing protective factors. Protective factors include rigorous and nuanced psychopharmacology, skill building (especially problem solving and basic communication skills) and the development of support systems for individuals with these illnesses. Even more importantly, the stress-vulnerability-protective factors model has allowed mental health workers, family members, and clients to create a sophisticated personal profile of what happens when the person is doing poorly (the diathesis), what hurts (the stressors), and what helps (the protective factors). This has resulted in more humane, effective, efficient, and empowering treatment interventions.
See also
References
- Zubin, J. & Spring, B. (1977). Vulnerability: A new view of schizophrenia. Journal of Abnormal Psychology, 86, 103-126.
This article is licensed under the GNU Free Documentation License.
Last updated on Tuesday September 02, 2008 at 11:30:37 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
Copyright © 2009, Dictionary.com, LLC. All rights reserved.