Stanford Center for Memory Disorders

Dementia with Lewy Bodies Signs & Symptoms

DLB can be confused with other forms of dementia, but it also has features of a psychiatric nature, such as hallucinations and delirium.

The primary sign of DLB is a progressive decline in cognitive functions, such as memory, thinking, and problem-solving. The decline in cognitive function is enough to affect your ability to work and perform normal daily activities. Although memory may be affected, it isn’t usually as impaired as in someone with AD.

DLB is generally diagnosed when at least two of the following features are also present with dementia:

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