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Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity

Hayley Young Orcid Logo, Chantelle Gaylor, Danielle De Kerchove, David Benton

Scientific Reports, Volume: 11, Issue: 1

Swansea University Authors: Hayley Young Orcid Logo, Chantelle Gaylor, Danielle De Kerchove, David Benton

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DOI (Published version): 10.1038/s41598-021-89417-8

Abstract

Those with disordered eating and/or obesity often express difficulties in sensing or interpreting what is happening in the body (interoception). However, research is hindered by conceptual confusion, concerns surrounding domain specificity, and an inability to distinguish sensory (bottom-up) and exp...

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Published in: Scientific Reports
ISSN: 2045-2322
Published: Springer Science and Business Media LLC 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56937
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spelling 2021-11-25T16:54:10.7617656 v2 56937 2021-05-21 Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity 22748f1a953255d63cb6ab9a98c11d70 0000-0002-6954-3519 Hayley Young Hayley Young true false ff9dac48eaa04419b8944895854ae5f0 Chantelle Gaylor Chantelle Gaylor true false 5590ada2e34645ac6d4121ee3d0431e6 Danielle De Kerchove Danielle De Kerchove true false 7845ee79286c74b7939198c94e9e16ff David Benton David Benton true false 2021-05-21 PSYS Those with disordered eating and/or obesity often express difficulties in sensing or interpreting what is happening in the body (interoception). However, research is hindered by conceptual confusion, concerns surrounding domain specificity, and an inability to distinguish sensory (bottom-up) and expectation driven (top-down) interoceptive processes. A paradigm was therefore developed from an active inference perspective. Novel indices were computed and examined in those with alexithymia: a personality associated with interoceptive deficits and disordered eating. The paradigm successfully identified individuals driven by sensations rather than expectations: alexithymia was characterized by attenuated prior precision (a larger divergence between pre-prandial and post-prandial satiety, and low expectation confidence), and increased prediction error (a higher correlation between changes in hunger and blood glucose, and greater rebound hunger after a sensory incongruent drink). In addition, those with a higher BMI were less confident and had a larger anticipated satiety divergence. These findings demonstrate the need to move beyond existing paradigms such as the Satiety Quotient and Heartbeat Counting Task which may have limited our understanding of eating behaviour. Journal Article Scientific Reports 11 1 Springer Science and Business Media LLC 2045-2322 12 5 2021 2021-05-12 10.1038/s41598-021-89417-8 COLLEGE NANME Psychology School COLLEGE CODE PSYS Swansea University 2021-11-25T16:54:10.7617656 2021-05-21T11:28:07.9502595 Faculty of Medicine, Health and Life Sciences School of Psychology Hayley Young 0000-0002-6954-3519 1 Chantelle Gaylor 2 Danielle De Kerchove 3 David Benton 4 56937__20197__3de4df48eb014da8b38ef5b7755570e2.pdf 56937.pdf 2021-06-18T16:21:04.6391917 Output 1695822 application/pdf Version of Record true © The Author(s) 2021. Tis article is licensed under a Creative Commons Attribution 4.0 International License true eng http://creativecommons.org/licenses/by/4.0/
title Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
spellingShingle Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
Hayley Young
Chantelle Gaylor
Danielle De Kerchove
David Benton
title_short Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
title_full Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
title_fullStr Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
title_full_unstemmed Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
title_sort Individual differences in sensory and expectation driven interoceptive processes: a novel paradigm with implications for alexithymia, disordered eating and obesity
author_id_str_mv 22748f1a953255d63cb6ab9a98c11d70
ff9dac48eaa04419b8944895854ae5f0
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author_id_fullname_str_mv 22748f1a953255d63cb6ab9a98c11d70_***_Hayley Young
ff9dac48eaa04419b8944895854ae5f0_***_Chantelle Gaylor
5590ada2e34645ac6d4121ee3d0431e6_***_Danielle De Kerchove
7845ee79286c74b7939198c94e9e16ff_***_David Benton
author Hayley Young
Chantelle Gaylor
Danielle De Kerchove
David Benton
author2 Hayley Young
Chantelle Gaylor
Danielle De Kerchove
David Benton
format Journal article
container_title Scientific Reports
container_volume 11
container_issue 1
publishDate 2021
institution Swansea University
issn 2045-2322
doi_str_mv 10.1038/s41598-021-89417-8
publisher Springer Science and Business Media LLC
college_str Faculty of Medicine, Health and Life Sciences
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hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
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description Those with disordered eating and/or obesity often express difficulties in sensing or interpreting what is happening in the body (interoception). However, research is hindered by conceptual confusion, concerns surrounding domain specificity, and an inability to distinguish sensory (bottom-up) and expectation driven (top-down) interoceptive processes. A paradigm was therefore developed from an active inference perspective. Novel indices were computed and examined in those with alexithymia: a personality associated with interoceptive deficits and disordered eating. The paradigm successfully identified individuals driven by sensations rather than expectations: alexithymia was characterized by attenuated prior precision (a larger divergence between pre-prandial and post-prandial satiety, and low expectation confidence), and increased prediction error (a higher correlation between changes in hunger and blood glucose, and greater rebound hunger after a sensory incongruent drink). In addition, those with a higher BMI were less confident and had a larger anticipated satiety divergence. These findings demonstrate the need to move beyond existing paradigms such as the Satiety Quotient and Heartbeat Counting Task which may have limited our understanding of eating behaviour.
published_date 2021-05-12T20:02:02Z
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