Depression may mimic dementia, and vice versa. Determining if a patient is suffering from one or the other, or both, may be challenging, since both diagnoses are relatively common in PD. Furthermore, when the two entities coexist, depression may make existing cognitive deficits appear worse than they really are and lead to excess disability, that is, functional impairment greater than would be expected from PD or depression alone. Also, as cognitive impairment progresses, it can be increasingly difficult to recognize a depressive disorder, because of difficulty in accessing the individual's internal affective state.
To explore the complex relationship between mood and cognition in the context of PD, it is necessary to start with looking at how depression affects cognition in non-PD populations, then how PD itself affects cognition, and finally how the depression and cognitive impairment together can interact in PD.
Depression and Cognition
In patients with MDD but who do not have PD or dementia, depression often produces hesitancy in answering
Was this article helpful?
The comprehensive new ebook All About Alzheimers puts everything into perspective. Youll gain insight and awareness into the disease. Learn how to maintain the patients emotional health. Discover tactics you can use to deal with constant life changes. Find out how counselors can help, and when they should intervene. Learn safety precautions that can protect you, your family and your loved one. All About Alzheimers will truly empower you.