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Functional Neurological Disorder (FND):

FND describes neurological symptoms like limb weakness, tremor, numbness or blackouts, related to the movement and sensation parts of the nervous system…..

  • Caused by a PROBLEM with the FUNCTIONING of the nervous system
  • A “software” issue of the brain, not the hardware (as in stroke or MS)
  • With positive diagnostic features typical of FND
  • Cause day to day difficulties for the person who experiences them

Functional Neurological Symptoms are:

Troublesome symptoms that someone wishes to understand without necessarily having a ‘disorder’ are called functional neurological symptoms, and this site is for you too.

FND and functional neurological symptoms are surprisingly common but can be difficult for patients and health professionals to understand.

This website, written by a neurologist with a special interest in these problems, aims to give you a better understanding of these symptoms. It has no advertising and is free. I hope you find it useful.


Professor Jon Stone
– Consultant Neurologist, Royal Infirmary of Edinburgh and University of Edinburgh, UK