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 ...

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 ...

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 ...

The Rorschach Inkblot Test (RIT) was developed in 1921 by Swiss Psychiatrist Hermann Rorschach. While working in an inpatient psychiatric hospital, Rorschach experimented with upwards of 40 inkblots.

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 ...