Psych CASC / OSCE · General adult psychiatry
Explaining functional neurological disorder to a patient — CASC communication station
MRCPsych/FRANZCP-style station: non-pejorative FND explanation, positive-sign rationale, MDT treatment hope, and check understanding.
On this page & tools
Target exams
Station brief
Format. Communication station, approximately 7–10 minutes after reading time. You are the psychiatry (or neuropsychiatry) registrar. The patient is in clinic after neurology review. [1]
Candidate instructions. Explain functional neurological disorder in plain language; address the fear of “putting it on”; outline how positive signs support the diagnosis; describe specialist physiotherapy and psychological support; give realistic hope without false certainty; check understanding and invite questions. Avoid jargon dumps and pejorative terms. [1][2]
Candidate scenario
Patient: “They said conversion. My friend says that means I am faking. Am I crazy? Will I end up in a wheelchair forever? Why do I need a physiotherapist if the MRI is normal?” Examination notes confirm positive Hoover's sign and inconsistency without upper-motor-neurone disease pattern. [1][4]
Marking domains
- Empathy and non-defensive structure
- Accurate plain-language explanation that symptoms are real and involuntary
- Use of positive-sign / rule-in concept without overwhelming technical detail
- Clear outline of physiotherapy and psychological MDT care
- Realistic hope and safety-netting for new red flags
- Check understanding and collaborative next steps [1][2][3]
Reveal assessor key
Open. Introduce role, acknowledge fear, agenda-set. “It makes sense you are worried after what your friend said — I want to explain carefully what we think is going on.” [1]
Name and reframe. “We use the term functional neurological disorder, sometimes still called conversion disorder in older notes. It means a problem with how the nervous system is functioning — a bit like a software problem rather than a permanent broken cable. The weakness is real. You are not crazy and you are not putting it on.” [1][2][4]
How we know. “When I examined you, parts of the examination showed that the pathways can still work when attention is redirected — for example Hoover's sign. That positive finding helps us make the diagnosis; it is not based only on a normal scan.” [1][4]
Treatment. “Because the system is not destroyed, many people improve with the right help. Specialist physiotherapy retrains movement and reduces the brain’s over-focus on the weak leg. Psychological therapy helps with fear, panic, and getting confidence back. We work as a team and follow you up.” [2][3]
Hope and safety-net. “I cannot promise a day-by-day timeline, but improvement is possible and we will work actively toward walking more confidently. If new red-flag symptoms appear, we reassess — we do not ignore you.” [2]
Close. Summarise, offer written information, name next appointment, invite questions, document discussion. [1]
References
- [1]Stone J, Burton C, Carson A Recognising and explaining functional neurological disorder BMJ, 2020.PMID 33087335
- [2]Aybek S, Perez DL Diagnosis and management of functional neurological disorder BMJ, 2022.PMID 35074803
- [3]Nielsen G, Stone J, Matthews A, et al. Physiotherapy for functional motor disorders: a consensus recommendation J Neurol Neurosurg Psychiatry, 2015.PMID 25433033
- [4]Espay AJ, Aybek S, Carson A, et al. Current Concepts in Diagnosis and Treatment of Functional Neurological Disorders JAMA Neurol, 2018.PMID 29868890