Bipolar Disorder: Associated features
It is not known whether specific cognitive deficits are mood state dependent or disorder-specific features of bipolar disorder. Few studies have examined impairments throughout all the different mood states, and many studies show conflicting data compared to other studies on account of methodological differences. Furthermore, the presence of mixed mood states complicates the identification of accurate cognitive models for this condition. Some use theories that conform to the cognitive models for unipolar depression and others on theories that focus solely on physiological or biological aspects of mania. However, Deborah Yurgelun-Todd of McLean Hospital in Belmont, Massachusetts has argued that some deficits should be included as a core feature of bipolar disorder. According to McIntyre et al.
Adjustment disorder: Stressors
A stressor is generally an event of a serious, unusual nature that an individual or group of individuals experience.