NEW YORK: Dementia with Lewy bodies (DLB) is a progressive neurodegenerative disorder that typically results in changes in attention, speed of information processing, visuospatial/visuoperceptual capacities, planning and memory.
Cognitive functions typically fluctuate,with episodic confusion and reduced vigilance. Recurrent visual hallucinations, and parkinsonism are the other defining clinical features of DLB, in addition to which the patient can ‘act out his/her dreams’ while sleeping (rapid eye movement sleep behavior disorder, RBD).