Altered interoceptive processing in smokers: Evidence from the heartbeat tracking task

Hina, Farah and Aspell, Jane E. (2019) Altered interoceptive processing in smokers: Evidence from the heartbeat tracking task. International Journal of Psychophysiology, 142. pp. 10-16. ISSN 1872-7697

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Neuroimaging evidence suggests that interoceptive processing might be altered in nicotine addiction, however this has not yet been confirmed with behavioral measures. Therefore, we investigated the perception of internal bodily states in smokers (n=49) and people who had never smoked (n=51), by measuring interoceptive accuracy (IAcc) and interoceptive sensibility (IS). IAcc was measured with a heartbeat tracking task and a heartbeat discrimination task. Performance on the heartbeat tracking task may be influenced by one's ability to estimate an elapsed time interval so this was controlled by also administering a time-estimation (TE) task. IS was measured using two sub-scales from the Multidimensional Assessment of Interoceptive Awareness (MAIA). All smokers completed the Revised Fagerström Test for Nicotine Dependence (FTND-R) to measure addiction severity. Non-smokers performed significantly better than smokers on the heartbeat tracking task. There were no significant group differences observed for the remaining variables. Furthermore, none of the variables predicted addiction severity. This is the first demonstration of behavioural differences in interoception between smokers and non-smokers.

Item Type: Journal Article
Keywords: Addiction, Interoception, Smoking, Heartbeat detection, Interoceptive sensibility
Faculty: Faculty of Science & Engineering
Depositing User: Dr Jane Aspell
Date Deposited: 03 Jun 2019 11:10
Last Modified: 09 Sep 2021 18:54

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