Trait and state interoceptive abnormalities are associated with dissociation and seizure frequency in patients with functional seizures

Abstract

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Individual differences in interoceptive accuracy and prediction error in motor functional neurological disorders: A DTI study

“…While the primary goal of this study was to investigate white matter-cardiac interoception relationships in patients with mFND, it is important to contextualize the behavioral findings. Previous studies provided evidence for cardiac interoceptive deficits in FND (Koreki et al, 2020;Ricciardi et al, 2014), while the present and two other studies did not find cardiac interoception deficits in mFND (Jungilligens et al, 2019;Pick, Rojas-Aguiluz, et al, 2020). There may be several explanations for these mixed findings.…”

“…Using a heartbeat detection task, interoceptive accuracy deficits have been reported in both FND‐seiz (Koreki et al, 2020) and FND‐movt (Ricciardi, Demartini, Crucianelli, Edwards, & Fotopoulou, 2014) cohorts, although a lack of group‐level differences has also been characterized in other studies (Jungilligens et al, 2019; Pick et al, 2020). In a study by Koreki and colleagues, discrepancies between interoceptive accuracy and self‐reported bodily awareness (an index of interoceptive trait prediction error [ITPE]) correlated with dissociation severity, underscoring the relevance of this measure (Koreki et al, 2020). Here, we aimed to characterize the white matter neuroanatomy of mFND and investigate how individual differences in white matter integrity related to cardiac interoceptive accuracy and ITPE.…”

“…Mismatches between subjective and objective symptom reports in FND-movt patients have also been described (Pareés et al, 2012). Using a heartbeat detection task, interoceptive accuracy deficits have been reported in both FND-seiz (Koreki et al, 2020) and FND-movt (Ricciardi, Demartini, Crucianelli, Edwards, & Fotopoulou, 2014) cohorts, although a lack of group-level differences has also been characterized in other studies (Jungilligens et al, 2019;.…”

“…In a study by Koreki and colleagues, discrepancies between interoceptive accuracy and self-reported bodily awareness (an index of interoceptive trait prediction error [ITPE]) correlated with dissociation severity, underscoring the relevance of this measure (Koreki et al, 2020). Here, we aimed to characterize the white matter neuroanatomy of mFND and investigate how individual differences in white matter integrity related to cardiac interoceptive accuracy and ITPE.…”

Corrigendum

“…In the article by Koreki et al, 1 the second author name has been spelled incorrectly. It should read as Sarah S. Garfkinel.…”