Physical precipitating factors in functional movement disorders.

Area of Science:

• Neurology
• Psychiatry
• Clinical Psychology

Background:

• Functional neurological symptoms, including functional movement disorders (FMD), are traditionally attributed to unconscious responses to psychological stress.
• However, psychological stressors are not always identified, and patients frequently report a preceding physical event.

Observation:

• This study systematically investigated physical events and circumstances preceding FMD onset in 50 patients.
• Semi-structured interviews and questionnaires assessed the 3 months prior to symptom onset, including mood and life events.

Findings:

• Eighty percent (40/50) of patients reported a physical event before FMD onset.
• Common preceding events included injury (11), infection (9), neurological disorders (8), pain (4), drug reactions (3), and surgery (3).
• Thirty-eight percent of patients experienced a panic attack associated with the physical event.

Implications:

• Physical events play a significant role in the onset of functional movement disorders, contrary to historical psychological-centric views.
• These physical triggers may provide crucial initial sensory data, which, combined with psychological factors like panic, contribute to FMD development.
• Understanding the interplay of physical and psychological factors is vital for effective FMD management.