Lewy Bodies named after Fredric Lewy who discovered them; they are accumulations of proteins called alpha synuclein in brain cell. With this type of dementia as well as the neurological (thinking) symptoms there are motor symptoms such as stiffer, slower movement and tremor like in Parkinson’s.
With all dementia the symptoms can fluctuate but with other types the fluctuations are over weeks whilst with Lewy bodies fluctuations can occur throughout the day.
Also people with Lewy bodies may experience hallucinations.