Which of the following statements made by the nursing student best summarizes the
medical”psychobiologic position on mental disorders?
1. Factors related to mental disorders can include excesses or deficiencies of brain
neurotransmitters as well as alterations in biologic rhythms, including the sleep”wake
cycle and genetic predispositions.
2. Mental illnesses with an organic cause have an unpredictable course and poor
prognosis.
3. Mental disorders rarely respond to physical or somatic treatments without careful
monitoring of progress by clinicians in medical settings.
4. Biological interventions such as hormones, diet, and medications must be changed
frequently as they are only effective for short periods of time.
Answer: