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Brilliant T D, Takeuchi H, Nouchi R, Yokoyama R, Kotozaki Y, Nakagawa S, Hanawa S, Sekiguchi A, Ikeda S, Sakaki K, Kawata KHDS, Nozawa T, Yokota S, Magistro D, Kawashima R. Loneliness inside of the brain: evidence from a large dataset of resting-state fMRI in young adult. Sci Rep 2022; 12:7856. [PMID: 35550564 PMCID: PMC9098468 DOI: 10.1038/s41598-022-11724-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022] Open
Abstract
Although loneliness itself is a natural emotion, prolonged loneliness is detrimental to human health. Despite its detrimental effect, few loneliness-related neuroimaging studies have been published and some have limitations on the sample size number. This study aims to find the difference in resting-state functional connectivity associated with loneliness within a big sample size via the seed-based approach. Functional connectivity analysis was performed on a large cohort of young adults (N = 1336) using the seed-based functional connectivity approach to address the concern from previous studies. The analysis yielded statistically significant positive correlations between loneliness and functional connectivities between the inferior frontal gyrus and supplementary motor area, precentral gyrus, and superior parietal lobule. Additionally, the analysis replicated a finding from a previous study, which is increased functional connectivities between the inferior frontal gyrus and supplementary motor area. In conclusion, greater loneliness is reflected by stronger functional connectivity of the visual attention brain area.
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Affiliation(s)
- Denilson Brilliant T
- Department of Advanced Brain Science, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan.
| | - Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan
| | - Rui Nouchi
- Smart-Aging Research Center, Tohoku University, Sendai, Japan.,Departments of Cognitive Health Science, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan
| | | | - Yuka Kotozaki
- Division of Clinical Research, Medical-Industry Translational Research Center, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Seishu Nakagawa
- Department of Human Brain Science, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan.,Division of Psychiatry, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Sugiko Hanawa
- Department of Human Brain Science, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan
| | - Atsushi Sekiguchi
- Department of Behavioral Medicine, National Center of Neurology and Psychiatry, National Institute of Mental Health, Tokyo, Japan
| | - Shigeyuki Ikeda
- RIKEN Center for Advanced Intelligence Project, Tokyo, Japan
| | - Kohei Sakaki
- Department of Advanced Brain Science, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan
| | | | - Takayuki Nozawa
- Research Institute for the Earth Inclusive Sensing, Tokyo Institute of Technology, Tokyo, Japan
| | - Susumu Yokota
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Daniele Magistro
- Department of Sport Science, Nottingham Trent University, Nottingham, England
| | - Ryuta Kawashima
- Department of Advanced Brain Science, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan.,Division of Developmental Cognitive Neuroscience, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, Japan.,Smart-Aging Research Center, Tohoku University, Sendai, Japan
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