Explosive outbursts in Tourette syndrome and chronic tic disorders

Area of Science:

• Neuroscience
• Psychiatry
• Genetics

Background:

• Explosive outbursts, or rage attacks, are prevalent in Tourette syndrome (TS) and chronic tic disorders (CTDs).
• These outbursts significantly increase morbidity and psychosocial impairment in affected individuals.
• Factors such as tic severity and psychiatric comorbidities are implicated.

Purpose of the Study:

• To provide a comprehensive overview of the phenomenology, neurobiology, and environmental factors of explosive outbursts in TS.
• To summarize current knowledge on the evaluation and treatment of these symptoms.
• To identify gaps in research and emphasize the need for standardized assessment and terminology.

Main Methods:

• A review and synthesis of existing literature on explosive outbursts, rage attacks, and related symptoms in TS/CTDs.
• Analysis of phenomenology, potential etiologies (neurobiological and environmental), and current treatment approaches.
• Identification of commonalities with transdiagnostic symptoms.

Main Results:

• Explosive outbursts are common, transdiagnostic symptoms occurring more frequently in TS/CTDs.
• The etiology is multifactorial, potentially involving intrinsic tic disorder factors, comorbidities, and extrinsic influences.
• Evidence-based treatments are currently limited.

Conclusions:

• Explosive outbursts are a significant and disabling feature of TS/CTDs.
• Further research is urgently needed to understand the underlying causes and develop effective treatments.
• Standardized terminology and assessment tools are crucial for advancing research and clinical practice.