Definition
Dementia with Lewy bodies (DLB) is a degenerative disorder characterized by progressive cognitive decline combined with three additional defining features: (1) pronounced fluctuations in alertness and attention (e.g., frequent drowsiness, lethargy, and disorganized speech), (2) visual hallucinations, and (3) parkinsonian motor symptoms (e.g., resting tremor, muscle rigidity, bradykinesia, and/or postural instability) (McKeith et al., 1996). The most recent consensus criteria have been modified to include additional features that may be suggestive of possible DLB (McKeith et al., 2005) (See Table 1).
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References and Readings
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Kraybill, M., Suchy, Y. (2011). Dementia with Lewy Bodies. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, New York, NY. https://doi.org/10.1007/978-0-387-79948-3_502
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