The fact that aspirin works doesn't prove that the cause of your illness was biological. Since both types of treatments work, you can't really conclude that the disorder is caused by either biological or cognitive factors. Psychodynamic therapy -based on idea that psychological disorders are due to unresolved childhood conflicts, chronic patterns of behavior that are maladaptive. Cognitive -behavioral therapies don't try to dig into person's unconscious desires, conflicts. Tries to ask questions so that person comes to the realization himself.
Drug therapies Increase or decrease the level of a particular neurotransmitter.
Instilling hope 2.