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3. Preventing Dementia with Social Connection

Author

Chey, Jeanyung, primary, Cho, Isu, additional, Kim, Hairin, additional, Kim, Hoyoung, additional, Kwak, Seyul, additional, Sul, Sunhae, additional, Lee, Sung-Ha, additional, and Youm, Yoosik, additional

Published
2023
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6. Similarity in functional brain connectivity at rest predicts interpersonal closeness in the social network of an entire village

Author

Hyon, Ryan, Youm, Yoosik, Kim, Junsol, Chey, Jeanyung, Kwak, Seyul, and Parkinson, Carolyn

Subjects
Behavioral and Social Science, Basic Behavioral and Social Science, Neurosciences, 1.2 Psychological and socioeconomic processes, Underpinning research, Mental health, Aged, Aged, 80 and over, Brain, Connectome, Female, Friends, Humans, Interpersonal Relations, Magnetic Resonance Imaging, Male, Personality, Rural Population, social networks, homophily, fMRI, resting state, functional connectomes
Abstract

People often have the intuition that they are similar to their friends, yet evidence for homophily (being friends with similar others) based on self-reported personality is inconsistent. Functional connectomes-patterns of spontaneous synchronization across the brain-are stable within individuals and predict how people tend to think and behave. Thus, they may capture interindividual variability in latent traits that are particularly similar among friends but that might elude self-report. Here, we examined interpersonal similarity in functional connectivity at rest-that is, in the absence of external stimuli-and tested if functional connectome similarity is associated with proximity in a real-world social network. The social network of a remote village was reconstructed; a subset of residents underwent functional magnetic resonance imaging. Similarity in functional connectomes was positively related to social network proximity, particularly in the default mode network. Controlling for similarities in demographic and personality data (the Big Five personality traits) yielded similar results. Thus, functional connectomes may capture latent interpersonal similarities between friends that are not fully captured by commonly used demographic or personality measures. The localization of these results suggests how friends may be particularly similar to one another. Additionally, geographic proximity moderated the relationship between neural similarity and social network proximity, suggesting that such associations are particularly strong among people who live particularly close to one another. These findings suggest that social connectivity is reflected in signatures of brain functional connectivity, consistent with the common intuition that friends share similarities that go beyond, for example, demographic similarities.

Published
2020

13. Global, regional, and national incidence, prevalence, and mortality of HIV, 1980–2017, and forecasts to 2030, for 195 countries and territories: a systematic analysis for the Global Burden of Diseases, Injuries, and Risk Factors Study 2017

Author

Frank, Tahvi D, Carter, Austin, Jahagirdar, Deepa, Biehl, Molly H, Douwes-Schultz, Dirk, Larson, Samantha Leigh, Arora, Megha, Dwyer-Lindgren, Laura, Steuben, Krista M, Abbastabar, Hedayat, Abu-Raddad, Laith Jamal, Abyu, Direslgne Misker, Adabi, Maryam, Adebayo, Oladimeji M, Adekanmbi, Victor, Adetokunboh, Olatunji O, Ahmadi, Alireza, Ahmadi, Keivan, Ahmadian, Elham, Ahmadpour, Ehsan, Ahmed, Muktar Beshir, Akal, Chalachew Genet, Alahdab, Fares, Alam, Noore, Albertson, Samuel B, Alemnew, Birhan Tamene T, Alene, Kefyalew Addis, Alipour, Vahid, Alvis-Guzman, Nelson, Amini, Saeed, Anbari, Zohreh, Anber, Nahla Hamed, Anjomshoa, Mina, Antonio, Carl Abelardo T, Arabloo, Jalal, Aremu, Olatunde, Areri, Habtamu Abera, Asfaw, Ephrem Tsegay, Ashagre, Alebachew Fasil, Asmelash, Daniel, Asrat, Anemaw A, Avokpaho, Euripide F G A, Awasthi, Ashish, Awoke, Nefsu, Ayanore, Martin Amogre, Azari, Samad, Badawi, Alaa, Bagherzadeh, Mojtaba, Banach, Maciej, Barac, Aleksandra, Bärnighausen, Till Winfried, Basu, Sanjay, Bedi, Neeraj, Behzadifar, Masoud, Bekele, Bayu Begashaw, Belay, Saba Abraham, Belay, Yared Belete, Belayneh, Yaschilal Muche, Berhane, Adugnaw, Bhat, Anusha Ganapati, Bhattacharyya, Krittika, Biadgo, Belete, Bijani, Ali, Bin Sayeed, Muhammad Shahdaat, Bitew, Helen, Blinov, Andrew, Bogale, Kassawmar Angaw, Bojia, Hunduma Amensisa, Burugina Nagaraja, Sharath B N, Butt, Zahid A, Cahuana-Hurtado, Lucero, Campuzano Rincon, Julio Cesar, Carvalho, Félix, Chattu, Vijay Kumar, Christopher, Devasahayam J, Chu, Dinh-Toi, Crider, Raquel, Dahiru, Tukur, Dandona, Lalit, Dandona, Rakhi, Daryani, Ahmad, das Neves, José, De Neve, Jan-Walter, Degenhardt, Louisa, Demeke, Feleke Mekonnen, Demis, Asmamaw Bizuneh, Demissie, Dereje Bayissa, Demoz, Gebre Teklemariam, Deribe, Kebede, Des Jarlais, Don, Dhungana, Govinda Prasad, Diaz, Daniel, Djalalinia, Shirin, Do, Huyen Phuc, Doan, Linh Phuong, Duber, Herbert, Dubey, Manisha, Dubljanin, Eleonora, Duken, Eyasu Ejeta, Duko Adema, Bereket, Effiong, Andem, Eftekhari, Aziz, El Sayed Zaki, Maysaa, El-Jaafary, Shaimaa I, El-Khatib, Ziad, Elsharkawy, Aisha, Endries, Aman Yesuf, Eskandarieh, Sharareh, Eyawo, Oghenowede, Farzadfar, Farshad, Fatima, Batool, Fentahun, Netsanet, Fernandes, Eduarda, Filip, Irina, Fischer, Florian, Folayan, Morenike Oluwatoyin, Foroutan, Masoud, Fukumoto, Takeshi, Fullman, Nancy, Garcia-Basteiro, Alberto L, Gayesa, Reta Tsegaye, Gebremedhin, Ketema Bizuwork, Gebremeskel, Gebreamlak Gebremedhn Gebremedhn, Gebreyohannes, Kelali Kalaye, Gedefaw, Getnet Azeze, Gelaw, Belayneh K, Gesesew, Hailay Abrha, Geta, Birhanu, Gezae, Kebede Embaye, Ghadiri, Keyghobad, Ghashghaee, Ahmad, Ginindza, Themba T G, Gugnani, Harish Chander, Guimarães, Rafael Alves, Haile, Michael Tamene, Hailu, Gessessew Bugssa, Haj-Mirzaian, Arvin, Haj-Mirzaian, Arya, Hamidi, Samer, Handanagic, Senad, Handiso, Demelash Woldeyohannes, Hanfore, Lolemo Kelbiso, Hasanzadeh, Amir, Hassankhani, Hadi, Hassen, Hamid Yimam, Hay, Simon I, Henok, Andualem, Hoang, Chi Linh, Hosgood, H Dean, Hosseinzadeh, Mehdi, Hsairi, Mohamed, Ibitoye, Segun Emmanuel, Idrisov, Bulat, Ikuta, Kevin S, Ilesanmi, Olayinka Stephen, Irvani, Seyed Sina Naghibi, Iwu, Chinwe Juliana, Jacobsen, Kathryn H, James, Spencer L, Jenabi, Ensiyeh, Jha, Ravi Prakash, Jonas, Jost B, Jorjoran Shushtari, Zahra, Kabir, Ali, Kabir, Zubair, Kadel, Rajendra, Kasaeian, Amir, Kassa, Belete, Kassa, Getachew Mullu, Kassa, Tesfaye Dessale, Kayode, Gbenga A, Kebede, Mihiretu M, Kefale, Adane Teshome, Kengne, Andre Pascal, Khader, Yousef Saleh, Khafaie, Morteza Abdullatif, Khalid, Nauman, Khan, Ejaz Ahmad, Khan, Gulfaraz, Khan, Junaid, Khang, Young-Ho, Khatab, Khaled, Khazaei, Salman, Khoja, Abdullah T, Kiadaliri, Aliasghar A, Kim, Yun Jin, Kisa, Adnan, Kisa, Sezer, Kochhar, Sonali, Komaki, Hamidreza, Koul, Parvaiz A, Koyanagi, Ai, Kuate Defo, Barthelemy, Kumar, G Anil, Kumar, Manasi, Kuupiel, Desmond, Lal, Dharmesh Kumar, Lee, Jane Jean-Hee, Lenjebo, Tsegaye Lolaso, Leshargie, Cheru Tesema, Macarayan, Erlyn Rachelle King, Maddison, Emilie R, Magdy Abd El Razek, Hassan, Magis-Rodriguez, Carlos, Mahasha, Phetole Walter, Majdan, Marek, Majeed, Azeem, Malekzadeh, Reza, Manafi, Navid, Mapoma, Chabila Christopher, Martins-Melo, Francisco Rogerlândio, Masaka, Anthony, Mayenga, Emmanuel Ngassa Laurent, Mehta, Varshil, Meles, Gebrekiros Gebremichael, Meles, Hagazi Gebre, Melese, Addisu, Melku, Mulugeta, Memiah, Peter T N, Memish, Ziad A, Mena, Alemayehu Toma, Mendoza, Walter, Mengistu, Desalegn Tadese, Mengistu, Getnet, Meretoja, Tuomo J, Mestrovic, Tomislav, Miller, Ted R, Moazen, Babak, Mohajer, Bahram, Mohamadi-Bolbanabad, Amjad, Mohammad, Karzan Abdulmuhsin, Mohammad, Yousef, Mohammad Darwesh, Aso, Mohammad Gholi Mezerji, Naser, Mohammadi, Moslem, Mohammadibakhsh, Roghayeh, Mohammadoo-Khorasani, Milad, Mohammed, Jemal Abdu, Mohammed, Shafiu, Mohebi, Farnam, Mokdad, Ali H, Moodley, Yoshan, Moossavi, Maryam, Moradi, Ghobad, Moradi-Lakeh, Maziar, Moschos, Marilita M, Mossie, Tilahun Belete, Mousavi, Seyyed Meysam, Muchie, Kindie Fentahun, Muluneh, Atalay Goshu, Muriithi, Moses K, Mustafa, Ghulam, Muthupandian, Saravanan, Nagarajan, Ahamarshan Jayaraman, Naik, Gurudatta, Najafi, Farid, Nazari, Javad, Ndwandwe, Duduzile Edith, Nguyen, Cuong Tat, Nguyen, Huong Lan Thi, Nguyen, Son Hoang, Nguyen, Trang Huyen, Ningrum, Dina Nur Anggraini, Nixon, Molly R, Nnaji, Chukwudi A, Noroozi, Mehdi, Noubiap, Jean Jacques, Nourollahpour Shiadeh, Malihe, Obsa, Mohammed Suleiman, Odame, Emmanuel Ankrah, Ofori-Asenso, Richard, Ogbo, Felix Akpojene, Okoro, Anselm, Oladimeji, Olanrewaju, Olagunju, Andrew T, Olagunju, Tinuke O, Olum, Solomon, Oppong Asante, Kwaku Oppong Asante, Oren, Eyal, Otstavnov, Stanislav S, PA, Mahesh, Padubidri, Jagadish Rao, Pakhale, Smita, Pakpour, Amir H, Patel, Sangram Kishor, Paulos, Kebreab, Pepito, Veincent Christian Filipino, Peprah, Emmanuel K, Piroozi, Bakhtiar, Pourshams, Akram, Qorbani, Mostafa, Rabiee, Mohammad, Rabiee, Navid, Radfar, Amir, Rafay, Anwar, Rafiei, Alireza, Rahim, Fakher, Rahimi-Movaghar, Afarin, Rahimi-Movaghar, Vafa, Rahman, Sajjad ur, Ranabhat, Chhabi Lal, Rawaf, Salman, Reis, Cesar, Renjith, Vishnu, Reta, Melese Abate, Rezai, Mohammad Sadegh, Rios González, Carlos Miguel, Roro, Elias Merdassa, Rostami, Ali, Rubino, Salvatore, Saeedi Moghaddam, Sahar, Safari, Saeed, Sagar, Rajesh, Sahraian, Mohammad Ali, Salem, Marwa R Rashad, Salimi, Yahya, Salomon, Joshua A, Sambala, Evanson Zondani, Samy, Abdallah M, Sartorius, Benn, Satpathy, Maheswar, Sawhney, Monika, Sayyah, Mehdi, Schutte, Aletta Elisabeth, Sepanlou, Sadaf G, Seyedmousavi, Seyedmojtaba, Shabaninejad, Hosein, Shaheen, Amira A, Shaikh, Masood Ali, Shallo, Seifadin Ahmed, Shamsizadeh, Morteza, Sharifi, Hamid, Shibuya, Kenji, Shin, Jae Il, Shirkoohi, Reza, Silva, Diego Augusto Santos, Silveira, Dayane Gabriele Alves, Singh, Jasvinder A, Sisay, Malede Mequanent M, Sisay, Mekonnen, Sisay, Solomon, Smith, Amanda E, Sokhan, Anton, Somayaji, Ranjani, Soshnikov, Sergey, Stein, Dan J, Sufiyan, Mu'awiyyah Babale, Sunguya, Bruno F, Sykes, Bryan L, Tadesse, Birkneh Tilahun, Tadesse, Degena Bahrey, Tamirat, Koku Sisay, Taveira, Nuno, Tekelemedhin, Shishay Wahdey, Temesgen, Habtamu Denekew, Tesfay, Fisaha Haile, Teshale, Manaye Yihune, Thapa, Subash, Tlaye, Kenean Getaneh, Topp, Stephanie M, Tovani-Palone, Marcos Roberto, Tran, Bach Xuan, Tran, Khanh Bao, Ullah, Irfan, Unnikrishnan, Bhaskaran, Uthman, Olalekan A, Veisani, Yousef, Vladimirov, Sergey Konstantinovitch, Wada, Fiseha Wadilo, Waheed, Yasir, Weldegwergs, Kidu Gidey, Weldesamuel, Girmay Teklay T, Westerman, Ronny, Wijeratne, Tissa, Wolde, Haileab Fekadu, Wondafrash, Dawit Zewdu, Wonde, Tewodros Eshete, Wondmagegn, Berhanu Yazew, Yeshanew, Addisu Gize, Yilma, Mekdes Tigistu, Yimer, Ebrahim M, Yonemoto, Naohiro, Yotebieng, Marcel, Youm, Yoosik, Yu, Chuanhua, Zaidi, Zoubida, Zarghi, Afshin, Zenebe, Zerihun Menlkalew, Zewale, Taye Abuhay, Ziapour, Arash, Zodpey, Sanjay, Naghavi, Mohsen, Vollset, Stein Emil, Wang, Haidong, Lim, Stephen S, Kyu, Hmwe Hmwe, and Murray, Christopher J L

Published
2019
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18. A Prospective Sociocentric Study of 2 Entire Traditional Korean Villages: The Korean Social Life, Health, and Aging Project (KSHAP)

Author

Baek, Jiwon, primary, Baldina, Ekaterina, additional, Sung, Kiho, additional, Lee, Sung-Ha, additional, Christakis, Nicholas A, additional, Bearman, Peter, additional, Kim, Hyeon Chang, additional, Chu, Sang Hui, additional, Lee, Eun, additional, Park, Yeong-Ran, additional, Chey, Jeanyung, additional, Choi, Youn-Hee, additional, Lee, Dohoon, additional, and Youm, Yoosik, additional

Published
2023
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20. A Prospective Sociocentric Study of 2 Entire Traditional Korean Villages: The Korean Social Life, Health, and Aging Project (KSHAP).

Author

Baek, Jiwon, Baldina, Ekaterina, Sung, Kiho, Lee, Sung-Ha, Christakis, Nicholas A, Bearman, Peter, Kim, Hyeon Chang, Chu, Sang Hui, Lee, Eun, Park, Yeong-Ran, Chey, Jeanyung, Choi, Youn-Hee, Lee, Dohoon, and Youm, Yoosik

Subjects
CULTURE, BIOMARKERS, RURAL conditions, SOCIAL networks, HEALTH status indicators, MAGNETIC resonance imaging, SURVEYS, QUALITY of life, AGING, RESEARCH funding, HAIR, SOCIAL skills, LONGITUDINAL method
Abstract

The Korean Social Life, Health, and Aging Project (KSHAP) was a multidisciplinary prospective study conducted in South Korea that measured various health biomarkers from blood, hair, and brain magnetic resonance imaging, and we examined their associations with sociocentric (global) social network data of older adults in 2 entire villages (or cohorts). Cohort K included participants aged 60 years or older, and cohort L included participants aged 65 years or older. We performed a baseline survey involving 814 of the 860 individuals (94.7% response rate) in cohort K in 2012 and 947 of the 1,043 individuals (90.8% response rate) in cohort L in 2017. We gathered longitudinal data for 5 waves in cohort K from 2011 to 2019 and 2 waves in cohort L from 2017 to 2022. Here, we describe for the first time the follow-up design of the KSHAP, the changes in social networks, and various biomarkers over a number of years. The data for cohort K are publicly available via the Korean Social Science Data Archive as well as the project website, and the data for cohort L will be shared soon. [ABSTRACT FROM AUTHOR]

Published
2024
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37. Psychological well‐being and salivary markers of inflammation: The moderating effect of age.

Author

Lee, Sung‐Ha, Chey, Jeanyung, Ahn, Woo‐Young, Woo, Choong‐Wan, Youm, Yoosik, Kim, Hairin, Oh, Naeun, Park, Hyeyoung, Gim, Suhwan, Lee, Eunjin, and Choi, Incheol

Subjects
PSYCHOLOGICAL well-being, OLDER people, MIDDLE-aged persons, MATURATION (Psychology), AGE, PSYCHOLOGICAL factors
Abstract

Increasing evidence suggests a significant impact of higher psychological well‐being (PWB) on health outcomes; however, such associations have been studied exclusively in middle‐aged to older adults. This study examined the aging effect on PWB measures as well as the moderating effect of age on the link between PWB and inflammation, using salivary markers by comparing the younger adults (n = 127; Mage = 22.98 years) versus older adults (n = 75; Mage = 75.60 years). Older adults showed significantly lower levels of PWB, particularly regarding purpose in life and personal growth. Moreover, higher purpose in life was associated with lower salivary IL‐1ß and IL‐6 (b = 0.83, p <.001; b = 0.81, p <.01) only in the older adult group but not in younger adults. These findings highlight the potential buffering effect of the sense of living well on physiological pathways in later life. [ABSTRACT FROM AUTHOR]

Published
2023
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46. Supplementary Information from Neural and social correlates of attitudinal brokerage: using the complete social networks of two entire villages

Author

Youm, Yoosik, Junsol Kim, Seyul Kwak, and Jeanyung Chey

Abstract

To avoid polarization and maintain small-worldness in society, people who act as attitudinal brokers are critical. These people maintain social ties with people who have dissimilar and even incompatible attitudes. Based on resting-state functional magnetic resonance imaging (n = 139) and the complete social networks from two Korean villages (n = 1508), we investigated the individual-level neural capacity and social-level structural opportunity for attitudinal brokerage regarding gender role attitudes. First, using a connectome-based predictive model, we successfully identified the brain functional connectivity that predicts attitudinal diversity of respondents' social network members. Brain regions that contributed most to the prediction included mentalizing regions known to be recruited in reading and understanding others’ belief states. This result was corroborated by leave-one-out cross-validation, fivefold cross-validation and external validation where the brain connectivity identified in one village was used to predict the attitudinal diversity in another independent village. Second, the association between functional connectivity and attitudinal diversity of social network members was contingent on a specific position in a social network, namely, the structural brokerage position where people have ties with two people who are not otherwise connected.

Published
2021
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