Agitation and Aggression* Jonathan M. Silver Stuart C. Yudofsky Karen E. Anderson Background Consistent with the biopsychosocial model of understanding human emotions and behavior, agitation, aggression, and violence are most…
Intellectual Disabilities of Developmental Onset Alya Reeve I. Background and Definition Intellectual disability (ID) is an impairment of cognitive function formerly known by many different names including mental deficiency, mental…
Unexplained Neuropsychiatric Symptoms Fred Ovsiew Jonathan M. Silver I. Introduction Doctors learn, from the earliest days of medical training, to identify the tissue pathology associated with patients’ symptoms to reach…
Sleep Disorders Sheldon Benjamin I. Background Sleep, the collection of brain mechanisms that leads to feeling rested and refreshed in the normal state, becomes a source of complaint in patients…
Changes in Personality John J. Campbell III I. Background A. Definitions Personality refers to the characteristics of a person that are enduring, pervasive, and distinctive. Personality has been defined as…
Hyperkinetic Movement Disorders Edward C. Lauterbach I. Hyperkinetic Movement Disorders A. Classification of hyperkinetic movement disorders Hyperkinetic movement disorders (hyperkinesias, hyperkinetic dyskinesias) are characterized by excessive, unwanted, involuntary movements, and…
Nonepileptic Seizures Karen E. Anderson I. Background A. Definition and terminology Nonepileptic seizures (NES) are defined as a conversion disorder manifested by paroxysmal changes in behavior that mimic epileptic seizures…
Psychosis in Neuropsychiatric Disorders Laura A. Flashman Thomas W. McAllister I. Background A. Definitions Psychosis is a term that has been defined in a number of ways, and no definition…
