disinhibition
Loss of behavioral and social restraints resulting in inappropriate or impulsive actions, particularly in frontotemporal dementia.
Full Definition
Disinhibition is a neuropsychiatric symptom characterized by the failure to suppress inappropriate behaviors, thoughts, or impulses that would normally be controlled by social and cultural norms. In geriatric psychiatry, disinhibition commonly occurs in frontotemporal dementia, vascular dementia, and other conditions affecting the frontal lobes. Manifestations include socially inappropriate comments, sexual advances, excessive spending, poor judgment in social situations, and loss of personal boundaries. This symptom can be particularly distressing for families and caregivers, as it represents a significant change from the patient's premorbid personality. Assessment involves structured interviews with informants and behavioral observations. Management typically includes environmental modifications, caregiver education, and careful consideration of pharmacological interventions when behaviors pose safety risks.
Usage
Usage note: Often hyphenated when used as compound modifier (disinhibition syndrome).
In Context
- "The patient's disinhibition included making inappropriate sexual comments to female staff members." — behavioral incident report
- "Frontotemporal dementia often presents with disinhibition before significant memory loss occurs." — differential diagnosis discussion