Comparable level of aggression between patients with behavioural addiction and healthy subjects

Abstract Heightened aggression is identified in several psychiatric disorders, including addiction. In this preliminary study with a relatively small number of samples, aggression in subjects diagnosed with behavioural addiction (BA) was implicitly assessed using the point subtraction aggression par...

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Main Authors: Yui Asaoka, Moojun Won, Tomonari Morita, Emi Ishikawa, Yukiori Goto
Format: Article
Language:English
Published: Nature Publishing Group 2021-07-01
Series:Translational Psychiatry
Online Access:https://doi.org/10.1038/s41398-021-01502-8
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author Yui Asaoka
Moojun Won
Tomonari Morita
Emi Ishikawa
Yukiori Goto
author_facet Yui Asaoka
Moojun Won
Tomonari Morita
Emi Ishikawa
Yukiori Goto
author_sort Yui Asaoka
collection DOAJ
description Abstract Heightened aggression is identified in several psychiatric disorders, including addiction. In this preliminary study with a relatively small number of samples, aggression in subjects diagnosed with behavioural addiction (BA) was implicitly assessed using the point subtraction aggression paradigm (PSAP) test along with measurements of oxy- and deoxyhaemoglobin dynamics in the prefrontal cortex (PFC) during the test using functional near-infrared spectroscopy. Aggression in BA patients was no higher than that of healthy control (CT) subjects in the PSAP test. Although no apparent increase or decrease in haemoglobin concentrations was observed in the PFC of either BA patients or CT subjects, abnormal correlations within the PFC network were present in BA patients. Consistent with comparable aggression between the groups, blood concentrations of the sex hormone testosterone, which has been shown to be associated with aggressiveness, was even lower in BA patients than in CT subjects. In contrast, when a set of questionnaire surveys for the assessment of aggression were administered, BA patients rated themselves as more aggressive than non-BA subjects. Collectively, these results suggest that aggression may not be heightened in BA, but BA patients may overestimate their aggressiveness, raising concerns about the use of questionnaire surveys for assessments of affective traits such as aggression in behavioural addiction.
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spelling doaj.art-4db18c7ba3534a8985e2bdbf3fcbf10e2022-12-21T18:42:43ZengNature Publishing GroupTranslational Psychiatry2158-31882021-07-0111111010.1038/s41398-021-01502-8Comparable level of aggression between patients with behavioural addiction and healthy subjectsYui Asaoka0Moojun Won1Tomonari Morita2Emi Ishikawa3Yukiori Goto4Primate Research Institute, Kyoto UniversityKyowa HospitalKyowa HospitalKyowa HospitalPrimate Research Institute, Kyoto UniversityAbstract Heightened aggression is identified in several psychiatric disorders, including addiction. In this preliminary study with a relatively small number of samples, aggression in subjects diagnosed with behavioural addiction (BA) was implicitly assessed using the point subtraction aggression paradigm (PSAP) test along with measurements of oxy- and deoxyhaemoglobin dynamics in the prefrontal cortex (PFC) during the test using functional near-infrared spectroscopy. Aggression in BA patients was no higher than that of healthy control (CT) subjects in the PSAP test. Although no apparent increase or decrease in haemoglobin concentrations was observed in the PFC of either BA patients or CT subjects, abnormal correlations within the PFC network were present in BA patients. Consistent with comparable aggression between the groups, blood concentrations of the sex hormone testosterone, which has been shown to be associated with aggressiveness, was even lower in BA patients than in CT subjects. In contrast, when a set of questionnaire surveys for the assessment of aggression were administered, BA patients rated themselves as more aggressive than non-BA subjects. Collectively, these results suggest that aggression may not be heightened in BA, but BA patients may overestimate their aggressiveness, raising concerns about the use of questionnaire surveys for assessments of affective traits such as aggression in behavioural addiction.https://doi.org/10.1038/s41398-021-01502-8
spellingShingle Yui Asaoka
Moojun Won
Tomonari Morita
Emi Ishikawa
Yukiori Goto
Comparable level of aggression between patients with behavioural addiction and healthy subjects
Translational Psychiatry
title Comparable level of aggression between patients with behavioural addiction and healthy subjects
title_full Comparable level of aggression between patients with behavioural addiction and healthy subjects
title_fullStr Comparable level of aggression between patients with behavioural addiction and healthy subjects
title_full_unstemmed Comparable level of aggression between patients with behavioural addiction and healthy subjects
title_short Comparable level of aggression between patients with behavioural addiction and healthy subjects
title_sort comparable level of aggression between patients with behavioural addiction and healthy subjects
url https://doi.org/10.1038/s41398-021-01502-8
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