Functional neurologic disorder (FND) is a condition where a person develops symptoms that are not consistent with a neurological disease or other health condition, but they impair the person’s ability ...

Conversion disorder is a psychiatric condition in which a person develops physical symptoms that are not under voluntary control and are not explained by a neurological disease or another medical ...

Fifteen teenage girls report a mysterious outbreak of spasms, tics and seizures in upstate New York. But tests find nothing physically wrong. Scores of adults in Northern California report crawling ...

Editor’s Note: Dr. Charles Raison, CNNhealth’s mental health expert, is an associate professor of psychiatry at the University of Arizona in Tucson. When I teach psychiatry to medical residents, the ...

It is important to consider a differential diagnosis between paralysis on an organic basis and paralysis and disability due to psychological mechanisms in people with physical impairment secondary to ...

Somatization is the expression of psychological or emotional factors as physical (somatic) symptoms. For example, stress can cause some people to develop headaches, chest pain, back pain, nausea or ...