Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits

Abstract Social interaction is essential for human survival and well-being; however, aging often increases the risk of loneliness alongside cognitive changes. While research on aging has highlighted loneliness as a marker of various cognitive stages, the precise role of loneliness as a mediator of c...

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Main Authors: Chenyi Chen, Valentino Marcel Tahamata, Yi-Fang Chuang, Yan-Siang Huang, Yi-Hsin Chuang, Yu-Tsen Lin, Yawei Cheng, Yang-Teng Fan, Yen-Ling Chiu, Róger Marcelo Martinez, Tsai-Tsen Liao, Ovid J. L. Tzeng
Format: Article
Language:English
Published: Springer Nature 2025-07-01
Series:Humanities & Social Sciences Communications
Online Access:https://doi.org/10.1057/s41599-025-05367-w
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author Chenyi Chen
Valentino Marcel Tahamata
Yi-Fang Chuang
Yan-Siang Huang
Yi-Hsin Chuang
Yu-Tsen Lin
Yawei Cheng
Yang-Teng Fan
Yen-Ling Chiu
Róger Marcelo Martinez
Tsai-Tsen Liao
Ovid J. L. Tzeng
author_facet Chenyi Chen
Valentino Marcel Tahamata
Yi-Fang Chuang
Yan-Siang Huang
Yi-Hsin Chuang
Yu-Tsen Lin
Yawei Cheng
Yang-Teng Fan
Yen-Ling Chiu
Róger Marcelo Martinez
Tsai-Tsen Liao
Ovid J. L. Tzeng
author_sort Chenyi Chen
collection DOAJ
description Abstract Social interaction is essential for human survival and well-being; however, aging often increases the risk of loneliness alongside cognitive changes. While research on aging has highlighted loneliness as a marker of various cognitive stages, the precise role of loneliness as a mediator of cognitive deficit in individuals with mild cognitive impairment (MCI) remains unclear. A total of 155 older adults ranging from 60 to 90 years old participated in this study, with 75 individuals diagnosed with MCI and 80 healthy controls. Outcome measures included MMSE, the Geriatric Depression Scale, and a standardized battery of neurocognitive functioning tests. In comparison to the health controls, individuals with MCI exhibited higher levels of perceived loneliness and depressive symptoms. Additionally, they demonstrated poorer performance on various neurocognitive tests. Perceived loneliness showed a positive association with depressive symptoms and a negative correlation with performance on tests assessing forward/backward digit span, vocabulary, similarity, symbol substitution, and color trails. The mediation analysis indicated that perceived loneliness significantly mediated the relationship between MCI status and executive function performance, accounting for approximately 6% of the total effect. These findings highlight the potential role of loneliness as a contributing psychosocial factor associated with cognitive performance in individuals with MCI. This understanding may inform future directions for disease monitoring and the design of targeted interventions in clinical trials addressing neurodegenerative conditions.
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spelling doaj-art-e7e721a8da0a43c692ff15de915f938b2025-08-20T03:37:28ZengSpringer NatureHumanities & Social Sciences Communications2662-99922025-07-0112111010.1057/s41599-025-05367-wPerceived loneliness mediates the relationship between mild cognitive impairment and executive function deficitsChenyi Chen0Valentino Marcel Tahamata1Yi-Fang Chuang2Yan-Siang Huang3Yi-Hsin Chuang4Yu-Tsen Lin5Yawei Cheng6Yang-Teng Fan7Yen-Ling Chiu8Róger Marcelo Martinez9Tsai-Tsen Liao10Ovid J. L. Tzeng11Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical UniversityGraduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical UniversityDepartment of Psychiatry, Far Eastern Memorial HospitalDepartment of Neurology, Far Eastern Memorial HospitalGraduate Institute of Medicine, Yuan Ze UniversityGraduate Institute of Medicine, Yuan Ze UniversityInstitute of Neuroscience and Brain Research Center, National Yang Ming Chiao Tung UniversityGraduate Institute of Medicine, Yuan Ze UniversityGraduate Institute of Medicine, Yuan Ze UniversityGraduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical UniversityResearch Center of Cancer Translational Medicine, Taipei Medical UniversityDepartment of Biological Science and Technology, National Yang Ming Chiao Tung UniversityAbstract Social interaction is essential for human survival and well-being; however, aging often increases the risk of loneliness alongside cognitive changes. While research on aging has highlighted loneliness as a marker of various cognitive stages, the precise role of loneliness as a mediator of cognitive deficit in individuals with mild cognitive impairment (MCI) remains unclear. A total of 155 older adults ranging from 60 to 90 years old participated in this study, with 75 individuals diagnosed with MCI and 80 healthy controls. Outcome measures included MMSE, the Geriatric Depression Scale, and a standardized battery of neurocognitive functioning tests. In comparison to the health controls, individuals with MCI exhibited higher levels of perceived loneliness and depressive symptoms. Additionally, they demonstrated poorer performance on various neurocognitive tests. Perceived loneliness showed a positive association with depressive symptoms and a negative correlation with performance on tests assessing forward/backward digit span, vocabulary, similarity, symbol substitution, and color trails. The mediation analysis indicated that perceived loneliness significantly mediated the relationship between MCI status and executive function performance, accounting for approximately 6% of the total effect. These findings highlight the potential role of loneliness as a contributing psychosocial factor associated with cognitive performance in individuals with MCI. This understanding may inform future directions for disease monitoring and the design of targeted interventions in clinical trials addressing neurodegenerative conditions.https://doi.org/10.1057/s41599-025-05367-w
spellingShingle Chenyi Chen
Valentino Marcel Tahamata
Yi-Fang Chuang
Yan-Siang Huang
Yi-Hsin Chuang
Yu-Tsen Lin
Yawei Cheng
Yang-Teng Fan
Yen-Ling Chiu
Róger Marcelo Martinez
Tsai-Tsen Liao
Ovid J. L. Tzeng
Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
Humanities & Social Sciences Communications
title Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
title_full Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
title_fullStr Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
title_full_unstemmed Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
title_short Perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
title_sort perceived loneliness mediates the relationship between mild cognitive impairment and executive function deficits
url https://doi.org/10.1057/s41599-025-05367-w
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