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Dissociative disorders represent complex psychological conditions characterized by disruptions in consciousness, memory, identity, or perception. These disruptions cause individuals to experience a disconnection from their thoughts, emotions, and memories. The phenomenon is not merely an occasional lapse in attention but a profound alteration in mental functioning that can severely impact daily life.
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Dissociation and interoception in functional neurological disorder.

Susannah Pick1, Maya Rojas-Aguiluz1, Morgan Butler1

  • 1Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Psychology

Background:

  • Functional Neurological Disorder (FND) is a condition affecting brain-body communication.
  • Dissociation and interoception are key areas of investigation in FND.
  • Understanding these processes may reveal underlying mechanisms of FND.

Purpose of the Study:

  • To investigate dissociation susceptibility in FND.
  • To examine the impact of dissociation on interoceptive processing in FND.
  • To compare FND patients with healthy controls.

Main Methods:

  • Nineteen adults with FND and 20 healthy controls participated.
  • A heartbeat tracking task assessed interoceptive accuracy and awareness.
  • A dissociation induction procedure was employed before and after tasks.

Main Results:

  • The FND group exhibited higher baseline dissociation, which increased post-induction.
  • Interoceptive accuracy was not different at baseline but was lower in FND post-induction.
  • FND patients showed lower confidence ratings in interoceptive and exteroceptive tasks.

Conclusions:

  • Individuals with FND are more susceptible to dissociation.
  • Acute dissociation exacerbates interoceptive processing deficits in FND.
  • Metacognitive deficits may contribute to altered interoception in FND.