Lewy body dementia is a progressive neurodegenerative disease caused by the deposition of abnormal proteins, called alpha-synuclein, in the brain. The alpha-synuclein clusters result in chemical changes in the brain, leading to symptoms such as abnormal movements, difficulty with thought process, and behavior. Sometimes it is difficult to diagnose this type of dementia since the symptoms overlap with Alzheimer’s and schizophrenia symptoms. The abnormal movements are similar to those in Parkinson disease, and so this is considered a “Parkinson plus” syndrome. Therefore, evaluation by memory disorder and movement disorder specialists can help reach the correct diagnosis.