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Altered interoception may be a pathophysiological mechanism in functional neurological disorder (FND). However, findings have been inconsistent across interoceptive dimensions in FND including functional motor symptoms (FMS) and seizures (FS). Here, individuals with FMS/FS (n=17) and healthy controls (HC, n=17) completed measures of interoceptive accuracy and insight (adapted heartbeat tracking task [HTT] with confidence ratings), a time estimation control task (TET) and the Multidimensional Assessment of Interoceptive Awareness–2 (MAIA-2) to assess interoceptive sensibility. The groups did not differ in interoceptive accuracy (p=1.00, g=.00) or confidence (p=.99, g=.004), although the FMS/FS group displayed lower scores on the “Not-Distracting” (p
Original languageEnglish
JournalBehaviour Research and Therapy
Publication statusPublished - 25 Jul 2023


  • interoception
  • functional neurological disorder
  • pathophysiology
  • bodily awareness
  • non-epileptic seizures
  • metacognition


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