The capacity to adjust beliefs about one’s actions and their consequences in a constantly changing environment is a defining characteristic of advanced cognition. Disruptions to this ability, however, ...

People who see meaning where there is none, like imagining one dot chasing another, may be showing early signs of paranoia or psychosis. Yale scientists found that such visual misperceptions are tied ...

Schizophrenia can be a commonly misunderstood illness, in part due to a great deal of misinformation, which can lead to potentially damaging stigma for the estimated 2.4 million adults in the United ...

Obsessive-compulsive disorder (OCD), a disorder that involves rumination, can lead to paranoid thoughts and paranoia. OCD occurs when a person experiences a cycle of obsessive thoughts and urges ...