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A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating
Appetite, Volume: 133, Pages: 270 - 278
Swansea University Authors:
Aimee Pink, Michelle Lee , Menna Price
, Claire Williams
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PDF | Accepted Manuscript
Released under the terms of a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND).
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DOI (Published version): 10.1016/j.appet.2018.11.014
Abstract
Difficulty identifying and describing emotions (alexithymia) has been related to impulsiveness and negative affect, emotional eating and obesity. However, previous research findings concerning the relationship between alexithymia and obesity have been mixed and inconsistent, raising the possibility...
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ISSN: | 01956663 |
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2019
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URI: | https://cronfa.swan.ac.uk/Record/cronfa45961 |
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However, previous research findings concerning the relationship between alexithymia and obesity have been mixed and inconsistent, raising the possibility that the relationship is indirect and mediated by multiple unknown factors. The aim of the study was to comprehensively explore the potential pathways between alexithymia and obesity via a novel theoretical model, and for the first time, incorporate negative affect, impulsiveness and emotional eating as potential mediating factors. Two questionnaire-based studies were conducted; the first as an exploratory analysis within a student sample (N=125), and the second as a self-replication within a more representative general population sample (N=342). Study One revealed that difficulty identifying feelings predicted Body Mass Index (BMI) both directly (B = .1694, CI = .0194-.3194) and indirectly via impulsiveness and emotional eating (B = .0074, CI = .0001-.0315). In contrast, Study Two revealed that alexithymia predicted BMI indirectly via negative affect (when depression was included in the model; B = .0335, CI = .0019-.0660) or impulsiveness (when anxiety was included in the model; B = .0021, CI = .0001-.0066). Our findings provide partial support for the hypothesised model and offer original insight into the relationship between alexithymia and obesity. 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2020-10-22T14:25:01.6554512 v2 45961 2018-11-17 A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating b104bd4518ffc637bf9091ef85ff3a9b Aimee Pink Aimee Pink true false 503d8657d47c066ada31f344b030c352 0000-0002-1291-5895 Michelle Lee Michelle Lee true false e8d0f85a0d2762328c906c75b1d154b7 0000-0002-0025-0881 Menna Price Menna Price true false 21dc2ebf100cf324becc27e8db6fde8d 0000-0002-0791-744X Claire Williams Claire Williams true false 2018-11-17 FGMHL Difficulty identifying and describing emotions (alexithymia) has been related to impulsiveness and negative affect, emotional eating and obesity. However, previous research findings concerning the relationship between alexithymia and obesity have been mixed and inconsistent, raising the possibility that the relationship is indirect and mediated by multiple unknown factors. The aim of the study was to comprehensively explore the potential pathways between alexithymia and obesity via a novel theoretical model, and for the first time, incorporate negative affect, impulsiveness and emotional eating as potential mediating factors. Two questionnaire-based studies were conducted; the first as an exploratory analysis within a student sample (N=125), and the second as a self-replication within a more representative general population sample (N=342). Study One revealed that difficulty identifying feelings predicted Body Mass Index (BMI) both directly (B = .1694, CI = .0194-.3194) and indirectly via impulsiveness and emotional eating (B = .0074, CI = .0001-.0315). In contrast, Study Two revealed that alexithymia predicted BMI indirectly via negative affect (when depression was included in the model; B = .0335, CI = .0019-.0660) or impulsiveness (when anxiety was included in the model; B = .0021, CI = .0001-.0066). Our findings provide partial support for the hypothesised model and offer original insight into the relationship between alexithymia and obesity. Additionally, our findings highlight important methodological considerations for future research and suggest that ways to address an individual’s ability to identify, describe and regulate emotions should be considered when designing interventions to assist weight loss and management. Journal Article Appetite 133 270 278 01956663 Alexithymia, Emotional Dysregulation, Negative Urgency, Affect, Emotional Eating, BMI 1 2 2019 2019-02-01 10.1016/j.appet.2018.11.014 Claire Williams - Corresponding Author COLLEGE NANME Medicine, Health and Life Science - Faculty COLLEGE CODE FGMHL Swansea University 2020-10-22T14:25:01.6554512 2018-11-17T17:09:48.3755914 Faculty of Medicine, Health and Life Sciences School of Psychology Aimee Pink 1 Michelle Lee 0000-0002-1291-5895 2 Menna Price 0000-0002-0025-0881 3 Claire Williams 0000-0002-0791-744X 4 45961__17513__74e0503210a94204a25f6cc539a77a18.pdf 46190.pdf 2020-06-17T15:27:52.0916164 Output 845570 application/pdf Accepted Manuscript true Released under the terms of a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND). true eng https://creativecommons.org/licenses/by-nc-nd/4.0/ |
title |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating |
spellingShingle |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating Aimee Pink Michelle Lee Menna Price Claire Williams |
title_short |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating |
title_full |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating |
title_fullStr |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating |
title_full_unstemmed |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating |
title_sort |
A serial mediation model of the relationship between alexithymia and BMI: The role of negative affect, negative urgency and emotional eating |
author_id_str_mv |
b104bd4518ffc637bf9091ef85ff3a9b 503d8657d47c066ada31f344b030c352 e8d0f85a0d2762328c906c75b1d154b7 21dc2ebf100cf324becc27e8db6fde8d |
author_id_fullname_str_mv |
b104bd4518ffc637bf9091ef85ff3a9b_***_Aimee Pink 503d8657d47c066ada31f344b030c352_***_Michelle Lee e8d0f85a0d2762328c906c75b1d154b7_***_Menna Price 21dc2ebf100cf324becc27e8db6fde8d_***_Claire Williams |
author |
Aimee Pink Michelle Lee Menna Price Claire Williams |
author2 |
Aimee Pink Michelle Lee Menna Price Claire Williams |
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Difficulty identifying and describing emotions (alexithymia) has been related to impulsiveness and negative affect, emotional eating and obesity. However, previous research findings concerning the relationship between alexithymia and obesity have been mixed and inconsistent, raising the possibility that the relationship is indirect and mediated by multiple unknown factors. The aim of the study was to comprehensively explore the potential pathways between alexithymia and obesity via a novel theoretical model, and for the first time, incorporate negative affect, impulsiveness and emotional eating as potential mediating factors. Two questionnaire-based studies were conducted; the first as an exploratory analysis within a student sample (N=125), and the second as a self-replication within a more representative general population sample (N=342). Study One revealed that difficulty identifying feelings predicted Body Mass Index (BMI) both directly (B = .1694, CI = .0194-.3194) and indirectly via impulsiveness and emotional eating (B = .0074, CI = .0001-.0315). In contrast, Study Two revealed that alexithymia predicted BMI indirectly via negative affect (when depression was included in the model; B = .0335, CI = .0019-.0660) or impulsiveness (when anxiety was included in the model; B = .0021, CI = .0001-.0066). Our findings provide partial support for the hypothesised model and offer original insight into the relationship between alexithymia and obesity. Additionally, our findings highlight important methodological considerations for future research and suggest that ways to address an individual’s ability to identify, describe and regulate emotions should be considered when designing interventions to assist weight loss and management. |
published_date |
2019-02-01T03:57:38Z |
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11.021648 |