Alexithymia mediates the relationship between interoceptive sensibility and anxiety

Eleanor R Palser, Clare E Palmer, Alejandro Galvez-Pol, Ricci Hannah, Aikaterini Fotopoulou and James M Kilner

PLOS ONE, 2018, vol. 13, issue 9, 1-11

Abstract: A number of empirical and theoretical reports link altered interoceptive processing to anxiety. However, the mechanistic understanding of the relationship between the two remains poor. We propose that a heightened sensibility for interoceptive signals, combined with a difficulty in attributing these sensations to emotions, increases an individual’s vulnerability to anxiety. In order to investigate this, a large sample of general population adults were recruited and completed self-report measures of interoceptive sensibility, trait anxiety and alexithymia. Results confirmed that the positive association between interoceptive sensibility and trait anxiety was partially mediated by alexithymia, such that those most at risk for clinically significant levels of trait anxiety have both significantly higher levels of interoceptive sensibility and alexithymia. A subsequent factor analysis confirmed the independence of the three measures. Altered interoceptive processing in combination with alexithymia, increased the risk for anxiety above and beyond altered interoceptive processing alone. We suggest that a heightened sensibility for interoceptive signals, combined with a difficulty in attributing these sensations to emotions, leaves these sensations vulnerable to catastrophizing interpretation. Interventions that target the attribution of bodily sensations may prove valuable in reducing anxiety.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0203212

DOI: 10.1371/journal.pone.0203212

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