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 ...

Are hallucinations common in individuals with dementia? Changes in the brain because of the progression of the disease produce false perceptions of objects or experiences. Visual hallucinations, most ...

A new study from the Netherlands Institute for Neuroscience shows how flickering light can cause hallucinations in our brain: it produces "standing waves" of brain activity. The work is published in ...

Hallucinogen persisting perception disorder (HPPD) is a rare medical condition that can cause visual disturbances (sometimes called flashbacks) if you’ve taken hallucinogenic drugs in the past. With ...

People with Charles Bonnet syndrome (CBS) experience complex visual hallucinations that can seem very real. While there is no cure, people can take simple steps to reduce or sometimes stop their ...

A food recall from Australia sheds light on an unusual aspect of brain chemistry. By Yan Zhuang Delirium. Fever. Hallucinations. Not what you expect when adding baby spinach to a salad, but these are ...

Cortical blindness occurs when a person loses their visual perception due to damage to certain areas of the brain. The eyes work as usual, but the brain cannot process visual information. The damage ...

Doctors have sounded the alarm over a common daily pain drug amid fears it could trigger hallucinations in some patients. The medicine—known as Norco—is an opioid that interacts with parts of the ...