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Functional neurological disorders: imaging.

V Voon1

  • 1Department of Psychiatry, University of Cambridge, Cambridgeshire, United Kingdom.

Neurophysiologie Clinique = Clinical Neurophysiology
|October 13, 2014
PubMed
Summary
This summary is machine-generated.

Functional neurological disorders (FNDs) involve unexplained neurological symptoms. This review explores neuroimaging findings related to FND motor symptoms, self-monitoring, and arousal.

Keywords:
ArousalAutocontrôleConversionConversion disordersDéficit moteurExcitationFunctional neuroimagingFunctional neurological disordersHystérieInternal representationsModèles internesMotor deficitNeuro-imagerie fonctionnelleSelf-monitoringTraumaTraumatismeTroubles neurologiques fonctionnelsVolontéVoluntariness

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Area of Science:

  • Neuroscience
  • Neurology
  • Psychiatry

Background:

  • Functional neurological disorders (FNDs), previously termed conversion disorder, present with unexplained neurological symptoms.
  • These conditions are prevalent and can lead to substantial functional impairment and distress.
  • Understanding the neurobiological underpinnings of FNDs is crucial for effective diagnosis and treatment.

Purpose of the Study:

  • To review the neuroimaging literature on functional neurological disorders, specifically focusing on motor symptoms.
  • To explore the neural correlates of motor functioning within the context of FNDs.
  • To examine upstream influences such as self-monitoring, internal representations, voluntariness, arousal, and trauma in FNDs.

Main Methods:

  • Systematic review of neuroimaging studies.
  • Analysis of literature focusing on functional motor symptoms in FNDs.
  • Examination of research on cognitive and emotional factors influencing FNDs.

Main Results:

  • Neuroimaging studies reveal alterations in brain activity and connectivity associated with FND motor symptoms.
  • Evidence suggests disrupted self-monitoring and internal representation processes in individuals with FNDs.
  • The role of arousal levels and the impact of trauma are increasingly recognized in the pathophysiology of FNDs.

Conclusions:

  • Neuroimaging provides valuable insights into the neural mechanisms underlying functional neurological disorders.
  • Understanding the interplay between motor control, self-awareness, arousal, and trauma is key to advancing FND research.
  • Further research is needed to elucidate the complex neurobiology of FNDs and inform clinical interventions.