FND Education Project

REFERENCE · RECOVERY TECHNIQUE

Graded Sensory Reintroduction for Functional Dystonia

Most likely fit: Ordinary fabric, footwear, touch, pressure, temperature or object contact feels unusually unpleasant or threatening and prevents use of the affected part. The person can identify at least one tolerable form or dose of sensory input from which to begin. [Clinical consensus; direct functional-dystonia component evidence is limited]

Not the same as: Proving pain is unreal, flooding the person with the worst sensation, rubbing an injured area, or applying a generic “sensory diet.” New colour or temperature change, oedema, severe pain, sweating change or reduced movement may require assessment for complex regional pain syndrome or another condition.

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For the Person With FND

What this technique does

Sensory reintroduction gives your nervous system manageable, accurate experiences of touch and position while you use the body part. It may begin with a soft material, gentle pressure through a broad surface, identifying a safe object without looking, or wearing a familiar shoe briefly. The next step is chosen from your response, not from a fixed timetable.

The goal is participation: tolerating a sleeve, washing a hand, placing a foot on the floor, using a utensil or wearing footwear long enough for an activity. Less discomfort may follow, but you do not have to deny or push through pain to make progress.

Anatomy in everyday language

The skin contains receptors for light touch, pressure, temperature and potential tissue threat. Muscles, tendons and joints provide proprioceptive information—signals about where the body is and how it is moving. The brain combines these signals with vision, previous experience and the current situation.

Allodynia means pain caused by input that is not normally painful, such as clothing touching the skin. Hyperalgesia means an unusually strong pain response to something that is normally painful. These are real sensory experiences. They do not by themselves identify the cause, and they should not be interpreted as exaggeration.

Building a sensory ladder

With a clinician, choose one functional target and list a few steps from most tolerable to more demanding. A footwear ladder might begin with the foot resting on a soft insole, then a loose sock for a short period, then a roomy shoe while seated, followed by brief supported standing. A hand ladder might begin with broad pressure through a soft towel, then identifying smooth objects, holding a light object and finally using it in self-care.

During practice:

  1. use a predictable input that you have chosen;
  2. keep the dose brief enough that you can recover;
  3. combine sensation with looking, naming, sorting or a useful movement rather than monitoring discomfort alone;
  4. record function, pain and the later response; and
  5. repeat or adjust the same step before adding intensity, time or variety.

Stop and seek review for new swelling, persistent colour or temperature change, skin damage, loss of circulation, injury or rapidly escalating pain. Do not use extreme heat, cold, sharp objects or irritants for desensitization.

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Ask which materials and pressure are acceptable. Never surprise the person with touch or test whether the area “really hurts.” Prepare the agreed items and let the person control contact and stopping.

Praise the practical action—putting on the sleeve, washing the hand, placing the foot—without demanding a lower pain score. Help check the skin when agreed, particularly under footwear or equipment. A delayed increase in pain or posturing may mean the dose needs adjustment; it does not prove avoidance or lack of effort.

For the Person With FND
For Family, Friends, and Other Supporters
For Clinicians and the Care Team
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For Clinicians and the Care Team

Selection and differential assessment

Map sensory quality, distribution, provocation, temporal pattern and functional consequence. Examine skin, oedema, perfusion, temperature, sudomotor change, range, motor pattern and relevant peripheral nerve, root, spinal cord and central findings. Assess possible complex regional pain syndrome using appropriate criteria rather than treating pain plus functional dystonia as sufficient. Functional and pain-related diagnoses may coexist.

Identify whether the intervention targets detection, discrimination, tolerance, body-position information or return to a specific activity. Sensory discrimination asks the person to distinguish location, texture, shape or object; desensitization grades tolerance to an aversive but safe input. These are related but not identical.

Explicit procedure

  1. Define one participation target and obtain consent for the specific input.
  2. Record baseline sensory description, skin status, pain, posturing, autonomic features and delayed response.
  3. Select a clearly tolerable stimulus and a short exposure below the level that causes prolonged escalation.
  4. Give control over onset, pressure and stopping. Avoid unpredictable touch.
  5. Pair input with discrimination or function: locate contact, identify an object, place the sole on a surface or use the hand in grooming.
  6. Keep attention broad and task-linked. Avoid repeated pain interrogation during each repetition.
  7. Progress only one dimension—texture, pressure, duration, area, temperature within a safe range, weight-bearing or task complexity.
  8. Review the immediate and later response, then maintain, progress or regress the dose.

Measures and boundaries

Measure the activity achieved, contact or wear duration, sensory discrimination when relevant, pain during and after, skin/autonomic change, posturing, recovery time and generalization to daily life. A numeric pain reduction is not the only valid outcome.

OT consensus and functional-dystonia reviews describe sensory retraining and graded functional use, but direct functional-dystonia trials of a standalone sensory protocol are lacking. Do not present a sensory exercise as a cure or as evidence that pain has a purely functional cause. [1][2][3][4]

For the Person With FND
For Family, Friends, and Other Supporters
For Clinicians and the Care Team
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Research and Sources

Citation Full citation
[1] Nicholson C, Edwards MJ, Carson AJ, et al. Occupational therapy consensus recommendations for functional neurological disorder. Journal of Neurology, Neurosurgery & Psychiatry. 2020;91(10):1037–1045. FND-CIT-0011. https://doi.org/10.1136/jnnp-2019-322281
[2] Nielsen G, Stone J, Matthews A, et al. Physiotherapy for functional motor disorders: a consensus recommendation. Journal of Neurology, Neurosurgery & Psychiatry. 2015;86(10):1113–1119. FND-CIT-0028. https://doi.org/10.1136/jnnp-2014-309255
[3] Frucht L, Perez DL, Callahan J, et al. Functional dystonia: differentiation from primary dystonia and multidisciplinary treatments. Frontiers in Neurology. 2021;11:605262. FND-CIT-0021. https://doi.org/10.3389/fneur.2020.605262
[4] Steinruecke M, Mason I, Keen M, McWhirter L, Carson AJ, Stone J, Hoeritzauer I. Pain and functional neurological disorder: a systematic review and meta-analysis. Journal of Neurology, Neurosurgery & Psychiatry. 2024;95(9):874–885. FND-CIT-0015. https://doi.org/10.1136/jnnp-2023-332810

Detailed technique page created September 12, 2026 · Clinical and accessibility review pending

For the Person With FND
For Family, Friends, and Other Supporters
For Clinicians and the Care Team
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