The early stages of a mental disorder were beginning to show in the patient.
Mentally disturbed - A very small group of people have a mental disorder which compels them to steal.
Autism is a profound mental disorder marked by an inability to communicate and interact with others.
The Diagnostic and Statistical Manual of Mental Disorders (DSM) does not recognize lying as a mental disorder.
According to the National Institute of Mental Health, over one quarter (26.2 percent) of the population of the United States has a "diagnosable mental disorder in any given year."