Hallucinations are unreal sensory experiences, such as hearing or seeing something that is not there. Any of our five senses (vision, hearing, taste, smell, touch) can be involved. Most often, when we ...

What you see at any given moment is only partially based on what’s actually in front of you. Sensory information is part of visual perception, but the other part is the knowledge you already hold ...

Dr. Oliver Sacks is probably best known as the real inspiration for the caring neurologist portrayed by Robin Williams in the Oscar-nominated film, Awakenings, which was based on his autobiographical ...

New research shows for the first time that visual hallucinations in people with macular degeneration are associated with abnormally heightened activity in the visual cortex of the brain. The findings ...

Charles Bonnet syndrome is a condition in which someone with poor vision experiences visual hallucinations, or seeing things that aren’t there. It occurs in individuals who have lost a significant ...

A physician and neurologist has outlined case studies of hallucinations of musical notation, and commented on the neural basis of such hallucinations. Professor of neurology, physician, and author ...

Parkinson disease (PD) psychosis refers to a spectrum of illusions, hallucinations and delusions that occur throughout the disease course Evolving literature highlights the importance of recognizing ...

Using a test similar to the one in a new study could help determine whether a patient has (or doesn't have) the disorder. Michael J. Fox, who has Parkinson’s disease, has long advocated for a cure. Dr ...

Professor of neurology, physician, and author Oliver Sacks M.D. has outlined case studies of hallucinations of musical notation, and commented on the neural basis of such hallucinations, in a new ...