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 ...

Paranoia is often defined as the delusional belief that one is being persecuted or harassed by others. It’s often seen as a symptom of a serious mental disorder such as schizophrenia, delusional ...

Paranoia is a common word that's commonly misunderstood. "S/he's so paranoid!" can be heard in everyday conversation with the same incomprehension as saying someone is "OCD" because they're organized.

New Haven, Conn. — Could complex beliefs like paranoia have roots in something as basic as vision? A new Yale study finds evidence that they might. When completing a visual perception task, in which ...