Images generated by photographic computer software are the first to depict accurate images of facial distortions experienced by patients with prosopometamorphopsia (PMO), a rare visual disorder that ...

In a recent review published in Brain Sciences, researchers reviewed existing data on visual impairments among Parkinson’s disease (PD) patients. Parkinson's disease (PD), a widely prevalent ...

It's a rare disorder first described in 1995 that's estimated to affect up to 2% of the population. Studies suggest depression, anxiety, and poor sleep are common side effects. On an online forum when ...

Hallucinogen Persisting Perception Disorder (HPPD) is a cognitive disorder in which individuals continuously re-experience visual and other sensory hallucinations that they first experienced while ...

Credit: Getty Images Some rare psychological disorders may occur so infrequently that most mental health professionals might never encounter them. Approximately 1 of every 5 adults in the United ...