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Neuropsychiatry Glossary

100 terms total — 24 showing — Last updated 15 Sep 2026

psychomotor agitation

Intermediate Technical IVT

Physical restlessness and increased motor activity associated with psychological distress, commonly seen in mood disorders.

Showing 73–96 of 100

phenytoin

Professional Technical IVT

Antiepileptic medication that can cause cognitive and psychiatric side effects.

Technical Term Full entry →

positive symptoms

Professional Technical IVT

Abnormal experiences or behaviors that are present in psychiatric conditions but absent in healthy individuals.

Technical Term Full entry →

postictal confusion

Intermediate Technical IVT

A state of disorientation and cognitive impairment that occurs immediately following a seizure.

Technical Term Full entry →

pressured speech

Intermediate Technical IVT

Rapid, excessive, and difficult-to-interrupt speech pattern often associated with mania or hypomania in bipolar disorder...

Technical Term Full entry →

prodromal phase

Professional Technical IVT

The early stage of a neuropsychiatric disorder before full diagnostic criteria are met.

Technical Term Full entry →

pseudobulbar affect

Professional Technical IVT

Neurological condition characterized by involuntary, sudden episodes of crying or laughing that are disproportionate or...

Technical Term Full entry →

pseudodementia

Professional Technical IVT

Reversible cognitive impairment caused by psychiatric conditions, particularly severe depression.

Technical Term Full entry →

psychoeducation

Intermediate Technical IVT

An educational intervention that teaches patients and families about mental health conditions and treatment strategies.

Technical Term Full entry →

psychomotor agitation

Intermediate Technical IVT

Physical restlessness and increased motor activity associated with psychological distress, commonly seen in mood disorde...

Technical Term Full entry →

psychomotor retardation

Intermediate Technical IVT

Observable slowing of physical movements and mental processes, commonly seen in severe depression.

Clinical Sign Full entry →

psychotropic medication

Intermediate Technical IVT

Pharmaceutical agents that affect the mind, emotions, and behavior by altering brain chemistry.

Technical Term Full entry →

rapid cycling

Intermediate Technical IVT

A pattern of bipolar disorder characterized by four or more mood episodes within a 12-month period.

Clinical Pattern Full entry →

REM sleep behavior disorder

Professional Technical IVT

Sleep disorder characterized by acting out dreams during REM sleep due to loss of normal muscle paralysis.

RBD
Technical Term Full entry →

semantic dementia

Professional Technical IVT

Progressive neurodegenerative condition characterized by gradual loss of semantic knowledge while other cognitive functi...

Technical Term Full entry →

serotonin syndrome

Intermediate Technical IVT

A potentially life-threatening condition caused by excessive serotonergic activity, typically resulting from medication...

Technical Term Full entry →

SSRI discontinuation syndrome

Intermediate Technical IVT

A collection of symptoms that can occur when stopping or reducing selective serotonin reuptake inhibitor medications.

Clinical Syndrome Full entry →

sundown syndrome

Intermediate Technical IVT

Worsening of behavioral and cognitive symptoms in the late afternoon or evening hours.

Technical Term Full entry →

sundowning

Intermediate Technical IVT

Behavioral and psychological symptoms that worsen during late afternoon and evening hours, commonly observed in dementia...

Technical Term Full entry →

tangentiality

Intermediate Technical IVT

A thought disorder where responses begin relevantly but gradually drift away from the original question or topic.

Thought Disorder Full entry →

tardive dyskinesia

Intermediate Technical IVT

A late-onset movement disorder featuring involuntary repetitive movements, typically caused by long-term antipsychotic u...

Technical Term Full entry →

thought broadcasting

Professional Technical IVT

A delusion in which patients believe their thoughts can be heard or accessed by others without verbal expression.

Psychiatric Symptom Full entry →

thought insertion

Professional Technical IVT

A delusion in which patients believe that external thoughts are being placed into their mind by others.

Psychiatric Symptom Full entry →

treatment-resistant depression

Professional Technical IVT

Major depressive disorder that fails to respond adequately to standard antidepressant treatments.

Technical Term Full entry →

utilization review

Intermediate Formal IVT

A systematic evaluation process to determine the medical necessity, appropriateness, and efficiency of healthcare servic...

Document Type Full entry →
Showing 73–96 of 100

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