Obligations in Japan: A three‐year longitudinal study of midlife adults

Han Na Lee, Jeewon Oh, Takeshi Nakagawa

Asian Journal of Social Psychology　Vol. 28　No. 3　2025/08/05　Research paper (scientific journal)

Effect of Self‐Quantification on Caregiver Burden and Depression Among Family Caregivers: A SWING‐Japan Study

Satoko Fujihara, Tomoko Wakui, Taishi Tsuji, Yoko Moriyama, Takeshi Nakagawa, Shuichi Obuchi, Shuichi Awata, Ichiro Kai

Psychogeriatrics　2025/07　Research paper (scientific journal)

Compared with people of the same age in the past, older people in Japan today are more functional and socially superior; however, their psychological well‐being is declining

Yukie Masui, Yasuyuki Gondo, Yuko Yoshida, Hiroki Inagaki, Takeshi Nakagawa, Saori Yasumoto, Madoka Ogawa, Kiyoaki Matsumoto, Can Wang, Kae Ito, Yasumichi Arai, Kazunori Ikebe, Kei Kamide, Takumi Hirata

Geriatrics & Gerontology International　2025/06/05　Research paper (scientific journal)

Development in Gerotranscendence in Community-Dwelling Older Adults in Japan: A Longitudinal Study Over a Nine-Year Period

Yukie Masui, Takeshi Nakagawa, Saori Yasumoto, Madoka Ogawa, Yoshiko Ishioka, Ayaka Kasuga, Noriko Hori, Hiroki Inagaki, Yuko Yoshida, Kae Ito, Midori Takayama, Yasumichi Arai, Kazunori Ikebe, Kei Kamide, Tatsuro Ishizaki, Yasuyuki Gondo

Journal of Adult Development　2025/06　Research paper (scientific journal)

Prevalence of high N-terminal prohormone of brain natriuretic peptide levels and associated factors among community-dwelling older adults aged over 75 years (The SONIC study): a cross-sectional study

Saya Terada, Kayo Godai, Mai Kabayama, Michiko Kido, Yuya Akagi, Hiroshi Akasaka, Yoichi Takami, Takeshi Nakagawa, Saori Yasumoto, Yasuyuki Gondo, Kazunori Ikebe, Yasumichi Arai, Yukie Masui, Takumi Hirata, Koichi Yamamoto, Kei Kamide

BMC Research Notes　Vol. 18　No. 1　2025/05/20　Research paper (scientific journal)

Stability and change in life satisfaction in Japan before and during the COVID‐19 pandemic

Takeshi Nakagawa, Taiji Noguchi, Ayane Komatsu, Xueying Jin, Sayaka Okahashi, Tami Saito

Applied Psychology: Health and Well-Being　Vol. 17　No. 2　2025/05　Research paper (scientific journal)

Multidimensional insights about healthy aging from the cohort study for community‐dwelling older adults: The SONIC study

Kei Kamide, Kazunori Ikebe, Yukie Masui, Takeshi Nakagawa, Mai Kabayama, Hiroshi Akasaka, Tomoaki Mameno, Yuki Murotani, Madoka Ogawa, Saori Yasumoto, Koichi Yamamoto, Takumi Hirata, Yasumichi Arai, Yasuyuki Gondo

Geriatrics & Gerontology International　2025/02/13　Research paper (scientific journal)

Association between salt intake and blood pressure among community-dwelling older adults based on their physical frailty status

Hiroko Yoshida, Mai Kabayama, Michiko Kido, Kayo Godai, Yuya Akagi, Yaya Li, Hiroshi Akasaka, Yoichi Takami, Saori Yasumoto, Madoka Ogawa, Takeshi Nakagawa, Kazunori Ikebe, Yasumichi Arai, Yukie Masui, Takumi Hirata, Yasuyuki Gondo, Koichi Yamamoto, Kei Kamide

Hypertension Research　2025/01/17　Research paper (scientific journal)

Masticatory performance indicates the development of psychological frailty: A 6-year prospective cohort study by the SONIC study group

Suzuna Akema, Tomoaki Mameno, Takeshi Nakagawa, Hiroki Inagaki, Kodai Hatta, Yuki Murotani, Yoshitaka Tsujioka, Hiromasa Hagino, Kotaro Higashi, Toshihito Takahashi, Masahiro Wada, Yasuyuki Gondo, Kei Kamide, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Soshiro Ogata, Kazunori Ikebe

Journal of Prosthodontic Research　2025/01　Research paper (scientific journal)

Mediating role of fruit and vegetable intake and social interaction between oral function and mental health in older adults aged ≥75 years: The SONIC study

Tomoaki Mameno, Paula Moynihan, Takeshi Nakagawa, Hiroki Inagaki, Suzuna Akema, Yuki Murotani, Satoko Takeuchi, Ayaka Kimura, Yoshie Okada, Yoshitaka Tsujioka, Kotaro Higashi, Hiromasa Hagino, Yusuke Mihara, Takayuki Kosaka, Masahiro Wada, Yoshinobu Maeda, Yasuyuki Gondo, Kei Kamide, Hiroshi Akasaka, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Kazunori Ikebe

Journal of Prosthodontic Research　2025/01　Research paper (scientific journal)

Participation factors in a self-quantification program for family caregivers of community-dwelling older adults with long-term care in Japan

Tomoko Wakui, Satoko Fujihara, Yoko Moriyama, Takeshi Nakagawa, Suguru Okubo, Shuichi Obuchi, Shuichi Awata, Ichiro Kai

BMC Research Notes　Vol. 17　No. 1　2024/12/26　Research paper (scientific journal)

Effects of multimorbidity and polypharmacy on physical function in community-dwelling older adults: A 3-year prospective cohort study from the SONIC

Yuko Yoshida, Tatsuro Ishizaki, Yukie Masui, Yuri Miura, Kiyoaki Matsumoto, Takeshi Nakagawa, Hiroki Inagaki, Kae Ito, Yasumichi Arai, Mai Kabayama, Kei Kamide, Hiromi Rakugi, Kazunori Ikebe, Yasuyuki Gondo

Archives of Gerontology and Geriatrics　Vol. 126　p. 105521-105521　2024/11　Research paper (scientific journal)

Association Between Cancer Screening Patterns and Carer Literacy in Individuals With Cognitive Decline: An Observational Study

Yujiro Kuroda, Aya Goto, Kazuaki Uchida, Taiki Sugimoto, Kosuke Fujita, Yoko Yokoyama, Takeshi Nakagawa, Tami Saito, Taiji Noguchi, Ayane Komatsu, Hidenori Arai, Takashi Sakurai

Cancer Medicine　Vol. 13　No. 20　2024/10/23　Research paper (scientific journal)

タブレット端末を用いた認知機能検査NCGG-FATの認知機能低下高齢者における使用可能性の検討

石田敦子, 岡橋さやか, 植田郁恵, 李相侖, 中川威, 大沢愛子, 斎藤民

ヒューマンインタフェース学会論文誌　Vol. 26　No. 3　p. 341-350　2024/08　Research paper (scientific journal)

Association between serum vitamin D levels and skeletal muscle indices in an older Japanese population: The SONIC study

Yuri Onishi, Hiroshi Akasaka, Kodai Hatta, Ken Terashima, Shino Yoshida, Yukiko Yasunobe, Taku Fujimoto, Masaaki Isaka, Kayo Godai, Michiko Kido, Mai Kabayama, Ken Sugimoto, Yukie Masui, Kiyoaki Matsumoto, Saori Yasumoto, Madoka Ogawa, Takeshi Nakagawa, Yasumichi Arai, Tatsuro Ishizaki, Yasuyuki Gondo, Kazunori Ikebe, Kei Kamide, Koichi Yamamoto

Geriatrics & Gerontology International　2024/08　Research paper (scientific journal)

Impact of Type 2 Diabetes and Glycated Hemoglobin Levels Within the Recommended Target Range on Mortality in Older Adults With Cognitive Impairment Receiving Care at a Memory Clinic: NCGG-STORIES

Taiki Sugimoto, Takashi Sakurai, Kazuaki Uchida, Yujiro Kuroda, Haruhiko Tokuda, Takuya Omura, Taiji Noguchi, Ayane Komatsu, Takeshi Nakagawa, Kosuke Fujita, Nanae Matsumoto, Rei Ono, Paul K. Crane, Tami Saito

Diabetes Care　2024/05/01　Research paper (scientific journal)

Let us move forward: Comment on “are generations a useful concept?”

Takeshi Nakagawa, Erika Kobayashi

Acta Psychologica　Vol. 246　p. 104286-104286　2024/04/22　Research paper (scientific journal)

Exploring the association between number of teeth, food intake, and cognitive function: A 9-year longitudinal study

Tomoaki Mameno, Paula Moynihan, Takeshi Nakagawa, Hiroki Inagaki, Suzuna Akema, Yuki Murotani, Satoko Takeuchi, Ayaka Kimura, Yoshie Okada, Yoshitaka Tsujioka, Kotaro Higashi, Hiromasa Hagino, Yusuke Mihara, Takayuki Kosaka, Toshihito Takahashi, Masahiro Wada, Yasuyuki Gondo, Kei Kamide, Hiroshi Akasaka, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Kazunori Ikebe

Journal of Dentistry　p. 104991-104991　2024/04　Research paper (scientific journal)

Effects of Mindfulness Training on Depression in Older Adults with Mild Cognitive Impairment: A Systematic Review

Izumi Kuratsubo, Takeshi Nakagawa

Japanese Journal of Clinical Geropsychology　Vol. 5　p. 9-23　2024/04　Research paper (scientific journal)

Behavioral and psychological symptoms of dementia and mortality risk among people with cognitive impairment: an 8-year longitudinal study from the NCGG-STORIES

Taiji Noguchi, Takeshi Nakagawa, Taiki Sugimoto, Ayane Komatsu, Yujiro Kuroda, Kazuaki Uchida, Rei Ono, Hidenori Arai, Takashi Sakurai, Tami Saito

Journal of Epidemiology　2024/03/23　Research paper (scientific journal)

Development of a short form of the Japanese version of the Caregiver Reaction Assessment (CRA‐J‐10) among informal caregivers of older adults

Taiji Noguchi, Takeshi Nakagawa, Xueying Jin, Ayane Komatsu, Shintaro Togashi, Mitsunori Miyashita, Tami Saito

Geriatrics & Gerontology International　2024/03　Research paper (scientific journal)

Relationship between mortality and vitality in patients with mild cognitive impairment/dementia: An 8‐year retrospective study

Yujiro Kuroda, Taiki Sugimoto, Kenichi Satoh, Takeshi Nakagawa, Tami Saito, Taiji Noguchi, Ayane Komatsu, Kazuaki Uchida, Kosuke Fujita, Rei Ono, Hidenori Arai, Takashi Sakurai

Geriatrics & Gerontology International　2024/03　Research paper (scientific journal)

Decision‐making involvement and onset of cognitive impairment in community‐dwelling older care recipients: a 2‐year longitudinal study

Ayane Komatsu, Takeshi Nakagawa, Taiji Noguchi, Xueying Jin, Sayaka Okahashi, Tami Saito

Psychogeriatrics　2024/03　Research paper (scientific journal)

Dyadic Art Appreciation and Self-Expression Program (NCGG-ART) for People with Dementia or Mild Cognitive Impairment and Their Family Caregivers: A Feasibility Study

Sayaka Okahashi, Taiji Noguchi, Masumi Ishihara, Aiko Osawa, Fumie Kinoshita, Ikue Ueda, Masaki Kamiya, Takeshi Nakagawa, Izumi Kondo, Takashi Sakurai, Hidenori Arai, Tami Saito

Journal of Alzheimer's Disease　p. 1-14　2024/01/17　Research paper (scientific journal)

Cohort Differences in Aging Self-Perceptions Among Japanese Older Adults

Takeshi Nakagawa, Daisuke Ito, Saori Yasumoto

Sage Open　Vol. 14　No. 1　p. 1-11　2024/01　Research paper (scientific journal)

Association between prior-night sleep and next-day fatigue in older adults: a daily diary study

Takeshi Nakagawa, Saori Yasumoto, Mai Kabayama, Ken’ichi Matsuda, Yasuyuki Gondo, Kei Kamide, Kazunori Ikebe

BMC Geriatrics　2023/12/07　Research paper (scientific journal)

Developing a predictive model for mortality in patients with cognitive impairment

Taiki Sugimoto, Takashi Sakurai, Taiji Noguchi, Ayane Komatsu, Takeshi Nakagawa, Ikue Ueda, Aiko Osawa, Sangyoon Lee, Hiroyuki Shimada, Yujiro Kuroda, Kosuke Fujita, Nanae Matsumoto, Kazuaki Uchida, Yoshinobu Kishino, Rei Ono, Hidenori Arai, Tami Saito

International Journal of Geriatric Psychiatry　Vol. 38　No. 11　2023/11/01　Research paper (scientific journal)

Cohort differences in trajectories of life satisfaction among Japanese older adults.

Takeshi Nakagawa, Erika Kobayashi

Psychology and Aging　Vol. 38　No. 7　p. 601-614　2023/11　Research paper (scientific journal)

Role of Interacting and Learning Experiences on Public Stigma Against Dementia: An Observational Cross-Sectional Study

Taiji Noguchi, Takeshi Nakagawa, Ayane Komatsu, Erhua Shang, Chiyoe Murata, Tami Saito

Dementia　2023/10/19　Research paper (scientific journal)

Strategies for fostering residents' positive attitude toward social participation of people with dementia: A cross‐sectional analysis

Tami Saito, Taiji Noguchi, Takeshi Nakagawa, Ayane Komatsu

Geriatrics & Gerontology International　2023/09/17　Research paper (scientific journal)

Development of a Short Version of the Dementia Stigma Assessment Scale

Taiji Noguchi, Takeshi Nakagawa, Ayane Komatsu, Erhua Shang, Chiyoe Murata, Tami Saito

Asia Pacific Journal of Public Health　Vol. 35　No. 6-7　p. 456-458　2023/07/11　Research paper (scientific journal)

Human-body Analogy Improves Mental Rotation Performance in People Aged 86 to 97 Years

Hiroyuki Muto, Yasuyuki Gondo, Hiroki Inagaki, Yukie Masui, Takeshi Nakagawa, Madoka Ogawa, Wataru Onoguchi, Yoshiko Ishioka, Keitaro Numata, Saori Yasumoto

Collabra: Psychology　Vol. 9　No. 1　2023/05/03　Research paper (scientific journal)

The Relationship Between Social Interaction and Anxiety Regarding COVID-19 in Japanese Older Adults

Hwang Choe, Yasuyuki Gondo, Ayaka Kasuga, Yukie Masui, Takeshi Nakagawa, Saori Yasumoto, Kazunori Ikebe, Kei Kamide, Mai Kabayama, Tatsuro Ishizaki

Gerontology and Geriatric Medicine　Vol. 9　p. 233372142311757-233372142311757　2023/05　Research paper (scientific journal)

Criterion validity of the health assessment questionnaire for the national screening program for older adults in Japan: The SONIC study

Noriko Hori, Tatsuro Ishizaki, Yukie Masui, Yuko Yoshida, Hiroki Inagaki, Kae Ito, Yoshiko L. Ishioka, Takeshi Nakagawa, Madoka Ogawa, Mai Kabayama, Kei Kamide, Kazunori Ikebe, Yasumichi Arai, Yasuyuki Gondo

Geriatrics & Gerontology International　2023/04/25　Research paper (scientific journal)

Underlying medical conditions and anti-SARS-CoV-2 spike IgG antibody titers after two doses of BNT162b2 vaccination: A cross-sectional study

Jiaqi Li, Takeshi Nakagawa, Masayo Kojima, Akihiko Nishikimi, Haruhiko Tokuda, Kunihiro Nishimura, Jun Umezawa, Shiori Tanaka, Manami Inoue, Norio Ohmagari, Koushi Yamaguchi, Kazuyoshi Takeda, Shohei Yamamoto, Maki Konishi, Kengo Miyo, Tetsuya Mizoue

PLOS ONE　Vol. 18　No. 4　p. e0283658-e0283658　2023/04/06　Research paper (scientific journal)

The association between experience of COVID-19-related discrimination and psychological distress among healthcare workers for six national medical research centers in Japan

Rachana Manandhar Shrestha, Yosuke Inoue, Shohei Yamamoto, Ami Fukunaga, Makiko Sampei, Ryo Okubo, Naho Morisaki, Norio Ohmagari, Takanori Funaki, Kazue Ishizuka, Koushi Yamaguchi, Yohei Sasaki, Kazuyoshi Takeda, Takeshi Miyama, Masayo Kojima, Takeshi Nakagawa, Kunihiro Nishimura, Soshiro Ogata, Jun Umezawa, Shiori Tanaka, Manami Inoue, Maki Konishi, Kengo Miyo, Tetsuya Mizoue

Social Psychiatry and Psychiatric Epidemiology　Vol. 58　No. 9　p. 1-9　2023/03　Research paper (scientific journal)

Early- to late-life environmental factors and late-life global cognition in septuagenarian and octogenarians: The SONIC study

Yoshiko Lily Ishioka, Yukie Masui, Takeshi Nakagawa, Madoka Ogawa, Hiroki Inagaki, Saori Yasumoto, Kazunori Ikebe, Kei Kamide, Yasumichi Arai, Tatsuro Ishizaki, Yasuyuki Gondo

Acta Psychologica　Vol. 233　p. 103844-103844　2023/03　Research paper (scientific journal)

Mortality Risks and Causes of Death by Dementia Types in a Japanese Cohort with Dementia: NCGG-Stories

Rei Ono, Takashi Sakurai, Taiki Sugimoto, Kazuaki Uchida, Takeshi Nakagawa, Taiji Noguchi, Ayane Komatsu, Hidenori Arai, Tami Saito

Journal of Alzheimer's Disease　Vol. 92　No. 2　p. 1-12　2023/02/06　Research paper (scientific journal)

Relationship between occlusal force and psychological frailty in Japanese community‐dwelling older adults: The Septuagenarians, Octogenarians, Nonagenarians Investigation with Centenarians study

Suzuna Akema, Tomoaki Mameno, Takeshi Nakagawa, Hiroki Inagaki, Motoyoshi Fukutake, Kodai Hatta, Yuki Murotani, Yoshitaka Tsujioka, Hiromasa Hagino, Kotaro Higashi, Toshihito Takahashi, Masahiro Wada, Yoshinobu Maeda, Yasuyuki Gondo, Kei Kamide, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Soshiro Ogata, Kazunori Ikebe

Journal of the American Geriatrics Society　Vol. 71　No. 6　p. 1819-1828　2023/01/23　Research paper (scientific journal)

Associations between salivary testosterone levels and cognitive function among 70‐year‐old Japanese elderly: A cross‐sectional analysis of the SONIC study

Kumi Hirokawa, Ayaka Kasuga, Kiyoaki Matsumoto, Yasuko Omori, Yukie Masui, Takeshi Nakagawa, Madoka Ogawa, Yoshiko Ishioka, Hiroki Inagaki, Kazunori Ikebe, Yasumichi Arai, Tatsuro Ishizaki, Kei Kamide, Yasuyuki Gondo

Geriatrics & Gerontology International　Vol. 22　No. 12　p. 1040-1046　2022/11/09　Research paper (scientific journal)

Humoral and cellular responses to the third COVID-19 BNT162b2 vaccine dose in research institute workers in Japan

Akihiko Nishikimi, Takeshi Nakagawa, Mitsuhiro Fujiwara, Ken Watanabe, Atsushi Watanabe, Ayane Komatsu, Mikako Yasuoka, Ryota Watanabe, Masahiro Naya, Hironori Oshima, Yuichi Kitagawa, Haruhiko Tokuda, Izumi Kondo, Shumpei Niida, Takashi Sakurai, Masayo Kojima, Hidenori Arai

Journal of Infection　Vol. 86　No. 2　2022/10　Research paper (scientific journal)

Factors associated with decision‐making involvement in community‐dwelling older care recipients

Ayane Komatsu, Takeshi Nakagawa, Taiji Noguchi, Tami Saito

Geriatrics & Gerontology International　2022/10　Research paper (scientific journal)

The role of social resources and trajectories of functional health following stroke

Takeshi Nakagawa, Taiji Noguchi, Ayane Komatsu, Tami Saito

Social Science & Medicine　p. 115322-115322　2022/10　Research paper (scientific journal)

Construct Validity of a New Health Assessment Questionnaire for the National Screening Program of Older Adults in Japan: The SONIC Study

Tatsuro Ishizaki, Yukie Masui, Takeshi Nakagawa, Yuko Yoshida, Yoshiko L. Ishioka, Noriko Hori, Hiroki Inagaki, Kae Ito, Madoka Ogawa, Mai Kabayama, Kei Kamide, Kazunori Ikebe, Yasumichi Arai, Yasuyuki Gondo

International Journal of Environmental Research and Public Health　Vol. 19　No. 16　p. 10330-10330　2022/08/19　Research paper (scientific journal)

Establishment of the Japanese version of the dementia stigma assessment scale

Taiji Noguchi, Erhua Shang, Takeshi Nakagawa, Ayane Komatsu, Chiyoe Murata, Tami Saito

Geriatrics & Gerontology International　Vol. 22　No. 9　p. 790-796　2022/08/04　Research paper (scientific journal)

Older Adults’ Resilience Against Impact of Lifestyle Changes During the COVID-19 Pandemic

Ayaka Kasuga, Saori Yasumoto, Takeshi Nakagawa, Yoshiko Ishioka, Akari Kikuchi, Hiroki Inagaki, Madoka Ogawa, Noriko Hori, Yukie Masui, Hwang Choe, Hiroyuki Muto, Mai Kabayama, Kayo Godai, Kazunori Ikebe, Kei Kamide, Tatsuro Ishizaki, Yasuyuki Gondo

Gerontology and Geriatric Medicine　Vol. 8　p. 233372142211162-233372142211162　2022/08/02　Research paper (scientific journal)

Immune responses to COVID-19 vaccine BNT162b2 in workers at a research institute in Japan: 6-month follow-up survey

Akihiko Nishikimi, Ken Watanabe, Atsushi Watanabe, Mikako Yasuoka, Ryota Watanabe, Mitsuhiro Fujiwara, Hironori Oshima, Takeshi Nakagawa, Yuichi Kitagawa, Haruhiko Tokuda, Yukihiko Washimi, Shumpei Niida, Masayo Kojima

Journal of Infection　Vol. 85　No. 2　p. 174-211　2022/05　Research paper (scientific journal)

Typology of Work–Family Balance Among Middle–Aged and Older Japanese Adults

Makiko Tomida, Yukiko Nishita, Chikako Tange, Takeshi Nakagawa, Rei Otsuka, Fujiko Ando, Hiroshi Shimokata

Frontiers in Psychology　Vol. 13　p. 751879-751879　2022/03/16　Research paper (scientific journal)

Art and cultural activity engagement and depressive symptom onset among older adults: A longitudinal study from the Japanese Gerontological Evaluation Study

Taiji Noguchi, Masumi Ishihara, Chiyoe Murata, Takeshi Nakagawa, Ayane Komatsu, Katsunori Kondo, Tami Saito

International Journal of Geriatric Psychiatry　Vol. 37　No. 3　2022/03　Research paper (scientific journal)

Hemoglobin Concentration is Associated with the Hippocampal Volume in Community-Dwelling Adults

Wei-Ling Chen, Yukiko Nishita, Akinori Nakamura, Takashi Kato, Takeshi Nakagawa, Shu Zhang, Hiroshi Shimokata, Rei Otsuka, Kuan-Pin Su, Hidenori Arai

Archives of Gerontology and Geriatrics　Vol. 101　p. 104668-104668　2022/02　Research paper (scientific journal)

Does positive affect predict mortality and morbidity? A 19-year longitudinal study of middle-aged and older Japanese adults

Takeshi Nakagawa, Yukiko Nishita, Chikako Tange, Makiko Tomida, Rei Otsuka, Fujiko Ando, Hiroshi Shimokata

Journal of Research in Personality　Vol. 97　p. 104204-104204　2022/02　Research paper (scientific journal)

Social functions and adverse outcome onset in older adults with mild long-term care needs: A two-year longitudinal study

Taiji Noguchi, Takeshi Nakagawa, Ayane Komatsu, Masumi Ishihara, Yumi Shindo, Takahiro Otani, Tami Saito

Archives of Gerontology and Geriatrics　p. 104631-104631　2022/01　Research paper (scientific journal)

Aging-in-place preferences and institutionalization among Japanese older adults: a 7-year longitudinal study

Takeshi Nakagawa, Taiji Noguchi, Ayane Komatsu, Masumi Ishihara, Tami Saito

BMC Geriatrics　Vol. 22　No. 1　2022/01　Research paper (scientific journal)

Association between intra-individual changes in social network diversity and global cognition in older adults: Does closeness to network members make a difference?

Tami Saito, Yukiko Nishita, Chikako Tange, Takeshi Nakagawa, Makiko Tomida, Rei Otsuka, Fujiko Ando, Hiroshi Shimokata, Hidenori Arai

Journal of Psychosomatic Research　Vol. 151　p. 110658-110658　2021/10　Research paper (scientific journal)

Successful Aging in East Asia: Comparison Among China, Korea, and Japan

Takeshi Nakagawa, Jinmyoung Cho, Dannii Y Yeung

The Journals of Gerontology: Series B　Vol. 76　No. Supplement1　p. S17-S26　2021/06/08　Research paper (scientific journal)

Relationship between fasting blood glucose levels in middle age and cognitive function in later life: The Aichi Workers’ Cohort Study

Masako Shimoda, Kayo Kaneko, Takeshi Nakagawa, Naoko Kawano, Rei Otsuka, Atsuhiko Ota, Hisao Naito, Masaaki Matsunaga, Naohiro Ichino, Hiroya Yamada, Chifa Chiang, Yoshihisa Hirakawa, Koji Tamakoshi, Atsuko Aoyama, Hiroshi Yatsuya

Journal of Epidemiology　Vol. 33　No. 2　p. 76-81　2021/05/22　Research paper (scientific journal)

Life Satisfaction during the Transition to Widowhood among Japanese Older Adults

Takeshi Nakagawa, Gizem Hülür

Gerontology　Vol. 67　No. 3　p. 338-349　2021/05/04　Research paper (scientific journal)

Social participation, social capital, and subjective well-being among older adults

Hwang Choe, Yasuyuki Gondo, Yukie Masui, Takeshi Nakagawa, Saori Yasumoto, Wataru Onoguchi, Kazunori Ikebe, Kei Kamide, Mai Kabayama, Tatsuro Ishizaki

Japanese Journal of Gerontology　Vol. 43　No. 1　p. 5-14　2021/04　Research paper (scientific journal)

Intraindividual variability in daily affect in young and older adults

Takeshi Nakagawa, Saori Yasumoto, Mai Kabayama, Ken'ichi Matsuda, Yasuyuki Gondo, Kei Kamide, Kazunori Ikebe

The Japanese Journal of Personality　Vol. 29　No. 3　p. 161-172　2021　Research paper (scientific journal)

Stability and change in well-being among middle-aged and older Japanese

Takeshi Nakagawa, Yukiko Nishita, Chikako Tange, Makiko Tomida, Kaori Kinoshita, Rei Otsuka, Fujiko Ando, Hiroshi Shimokata

International Journal of Behavioral Development　Vol. 45　No. 1　p. 78-88　2021/01/01　Research paper (scientific journal)

The Psychometric Properties of the Montreal Cognitive Assessment (MoCA)

Giovanni Sala, Hiroki Inagaki, Yoshiko Ishioka, Yukie Masui, Takeshi Nakagawa, Tatsuro Ishizaki, Yasumichi Arai, Kazunori Ikebe, Kei Kamide, Yasuyuki Gondo

Swiss Journal of Psychology　Vol. 79　No. 3-4　p. 155-161　2020/12/23　Research paper (scientific journal)

Social Integration and Terminal Decline in Life Satisfaction Among Older Japanese

Takeshi Nakagawa, Gizem Hülür

The Journals of Gerontology: Series B　Vol. 75　No. 10　p. 2122-2131　2020/11/13　Research paper (scientific journal)

Intraindividual change in affect in middle and old age

Takeshi Nakagawa

The Japanese Journal of Personality　Vol. 29　No. 2　p. 109-119　2020/09/30　Research paper (scientific journal)

Dietary diversity is associated with longitudinal changes in hippocampal volume among Japanese community dwellers

Rei Otsuka, Yukiko Nishita, Akinori Nakamura, Takashi Kato, Kaori Iwata, Chikako Tange, Makiko Tomida, Kaori Kinoshita, Takeshi Nakagawa, Fujiko Ando, Hiroshi Shimokata, Hidenori Arai

European Journal of Clinical Nutrition　Vol. 75　No. 6　p. 946-953　2020/09/02　Research paper (scientific journal)

The association of blood pressure with physical frailty and cognitive function in community-dwelling septuagenarians, octogenarians, and nonagenarians: the SONIC study

Mai Kabayama, Kei Kamide, Yasuyuki Gondo, Yukie Masui, Takeshi Nakagawa, Madoka Ogawa, Saori Yasumoto, Hirochika Ryuno, Yuya Akagi, Eri Kiyoshige, Kayo Godai, Ken Sugimoto, Hiroshi Akasaka, Yoichi Takami, Yasushi Takeya, Koichi Yamamoto, Kazunori Ikebe, Hiroki Inagaki, Peter Martin, Yasumichi Arai, Tatsuro Ishizaki, Hiromi Rakugi

Hypertension Research　Vol. 43　No. 12　p. 1421-1429　2020/07/08　Research paper (scientific journal)

Caregiving centenarians: Cross-national comparison in Caregiver-Burden between the United States and Japan

J. Cho, T. Nakagawa, P. Martin, Y. Gondo, L. W. Poon, N. Hirose

Aging & Mental Health　Vol. 24　No. 5　p. 774-783　2020/05/03　Research paper (scientific journal)

Human-body analogy improves mental rotation performance in people aged 86 to 97 years

Hiroyuki Muto, Yasuyuki Gondo, Hiroki Inagaki, Yukie Masui, Takeshi Nakagawa, Madoka Ogawa, Wataru Onoguchi, Yoshiko Lily Ishioka, Keitaro Numata, Saori Yasumoto

2020/04/01

Occlusal force predicted cognitive decline among 70- and 80-year-old Japanese: A 3-year prospective cohort study.

Kodai Hatta, Yasuyuki Gondo, Kei Kamide, Yukie Masui, Hiroki Inagaki, Takeshi Nakagawa, Ken-Ichi Matsuda, Chisato Inomata, Hajime Takeshita, Yusuke Mihara, Motoyoshi Fukutake, Masahiro Kitamura, Shinya Murakami, Mai Kabayama, Tatsuro Ishizaki, Yasumichi Arai, Ken Sugimoto, Hiromi Rakugi, Yoshinobu Maeda, Kazunori Ikebe

Journal of prosthodontic research　Vol. 64　No. 2　p. 175-181　2020/04　Research paper (scientific journal)

Age group differences in association between IADL decline and depressive symptoms in community-dwelling elderly.

Eri Kiyoshige, Mai Kabayama, Yasuyuki Gondo, Yukie Masui, Hiroki Inagaki, Madoka Ogawa, Takeshi Nakagawa, Saori Yasumoto, Hiroshi Akasaka, Ken Sugimoto, Kazunori Ikebe, Yasumichi Arai, Tatsuro Ishizaki, Hiromi Rakugi, Kei Kamide

BMC geriatrics　Vol. 19　No. 1　p. 309-309　2019/11/13　Research paper (scientific journal)

Serum albumin/globulin ratio is associated with cognitive function in community-dwelling older people: The Septuagenarians, Octogenarians, Nonagenarians Investigation with Centenarians study.

Satomi Maeda, Yasushi Takeya, Ryosuke Oguro, Hiroshi Akasaka, Hirochika Ryuno, Mai Kabayama, Serina Yokoyama, Motonori Nagasawa, Taku Fujimoto, Masao Takeda, Miyuki Onishi-Takeya, Norihisa Itoh, Yoichi Takami, Koichi Yamamoto, Ken Sugimoto, Hiroki Inagaki, Madoka Ogawa, Takeshi Nakagawa, Saori Yasumoto, Yukie Masui, Yasumichi Arai, Tatsuro Ishizaki, Kazunori Ikebe, Yasuyuki Gondo, Kei Kamide, Hiromi Rakugi

Geriatrics & gerontology international　Vol. 19　No. 10　p. 967-971　2019/10　Research paper (scientific journal)

Role of gait speed and grip strength in predicting 10-year cognitive decline among community-dwelling older people.

Ming-Yueh Chou, Yukiko Nishita, Takeshi Nakagawa, Chikako Tange, Makiko Tomida, Hiroshi Shimokata, Rei Otsuka, Liang-Kung Chen, Hidenori Arai

BMC geriatrics　Vol. 19　No. 1　p. 186-186　2019/07/05　Research paper (scientific journal)

Hardness of the habitual diet and its relationship with cognitive function among 70-year-old Japanese elderly: Findings from the SONIC Study.

Hitomi Okubo, Kentaro Murakami, Hiroki Inagaki, Yasuyuki Gondo, Kazunori Ikebe, Kei Kamide, Yukie Masui, Yasumichi Arai, Tatsuro Ishizaki, Satoshi Sasaki, Takeshi Nakagawa, Mai Kabayama, Ken Sugimoto, Hiromi Rakugi, Yoshinobu Maeda

Journal of oral rehabilitation　Vol. 46　No. 2　p. 151-160　2019/02　Research paper (scientific journal)

Change in depressive symptoms and associations with physical health in old age

Takeshi Nakagawa

Japanese Journal of Gerontology　Vol. 40　No. 4　p. 351-362　2019　Research paper (scientific journal)

Association between long-term care and chronic and lifestyle-related disease modified by social profiles in community-dwelling people aged 80 and 90; SONIC study

Eri Kiyoshige, Mai Kabayama, Yasuyuki Gondo, Yukie Masui, Hirochika Ryuno, Yasuka Sawayama, Takako Inoue, Yuya Akagi, Toshiaki Sekiguchi, Kentaro Tanaka, Takeshi Nakagawa, Saori Yasumoto, Madoka Ogawa, Hiroki Inagaki, Ryousuke Oguro, Ken Sugimoto, Hiroshi Akasaka, Koichi Yamamoto, Yasushi Takeya, Yoichi Takami, Norihisa Itoh, Masao Takeda, Motonori Nagasawa, Serina Yokoyama, Satomi Maeda, Kazunori Ikebe, Yasumichi Arai, Tatsuro Ishizaki, Hiromi Rakugi, Kei Kamide

Archives of Gerontology and Geriatrics　Vol. 81　p. 176-181　2019　Research paper (scientific journal)

The impact of leisure activities on older adults' cognitive function, physical function, and mental health.

Giovanni Sala, Daniela Jopp, Fernand Gobet, Madoka Ogawa, Yoshiko Ishioka, Yukie Masui, Hiroki Inagaki, Takeshi Nakagawa, Saori Yasumoto, Tatsuro Ishizaki, Yasumichi Arai, Kazunori Ikebe, Kei Kamide, Yasuyuki Gondo

PloS one　Vol. 14　No. 11　2019　Research paper (scientific journal)

Positive age stereotypes predict longevity among older adults

Takeshi Nakagawa, Saori Yasumoto

Japanese Journal of Gerontology　Vol. 41　No. 3　p. 270-277　2019　Research paper (scientific journal)

Longitudinal effect of gerotranscendence on the mental health of community-dwelling older adults : Focusing buffering effect of gerotranscendence for the negative effect of disease and bereavement events

Yukie Masui, Yasuyuki Gondo, Takeshi Nakagawa, Madoka Ogawa, Yoshiko Ishioka, Hiroki Inagaki, Yuchun Tsai, Saori Yasumoto, Takeshi Kurinobu, Wataru Onoguchi, Midori Takayama, Yasumichi Arai, Kazunori Ikebe, Kei Kamide, Tatsuro Ishizaki

Japanese Journal of Gerontology　Vol. 41　No. 3　p. 247-258　2019　Research paper (scientific journal)

Relationship between gerotranscendence and oral health-related quality of life.

Yusuke Mihara, Ken-Ichi Matsuda, Koudai Hatta, Yasuyuki Gondo, Yukie Masui, Takeshi Nakagawa, Kei Kamide, Tatsuro Ishizaki, Yasumichi Arai, Yoshinobu Maeda, Kazunori Ikebe

Journal of oral rehabilitation　Vol. 45　No. 10　p. 805-809　2018/10　Research paper (scientific journal)

Influence of lack of posterior occlusal support on cognitive decline among 80-year-old Japanese people in a 3-year prospective study.

Kodai Hatta, Kazunori Ikebe, Yasuyuki Gondo, Kei Kamide, Yukie Masui, Hiroki Inagaki, Takeshi Nakagawa, Ken-Ichi Matsuda, Taiji Ogawa, Chisato Inomata, Hajime Takeshita, Yusuke Mihara, Motoyoshi Fukutake, Masahiro Kitamura, Shinya Murakami, Mai Kabayama, Tatsuro Ishizaki, Yasumichi Arai, Ken Sugimoto, Hiromi Rakugi, Yoshinobu Maeda

Geriatrics & gerontology international　Vol. 18　No. 10　p. 1439-1446　2018/10　Research paper (scientific journal)

Emotional word use and longevity among Japanese business leaders

Takeshi Nakagawa, Shoko Yamane

Journal of Research in Personality　Vol. 75　p. 133-136　2018/08　Research paper (scientific journal)

Valuation of Life Among Old and Very Old Adults: Comparison Between Germany and Japan

Takeshi Nakagawa, Daniela S Jopp, Yasuyuki Gondo, Jonathan Lehrfeld, Christoph Rott, Frank Oswald

Innovation in Aging　Vol. 2　No. 2　2018/06/01　Research paper (scientific journal)

High plasma adiponectin levels are associated with frailty in a general old-old population: The Septuagenarians, Octogenarians, Nonagenarians Investigation with Centenarians study.

Motonori Nagasawa, Yoichi Takami, Hiroshi Akasaka, Mai Kabayama, Satomi Maeda, Serina Yokoyama, Taku Fujimoto, Yoichi Nozato, Yuki Imaizumi, Masao Takeda, Norihisa Itoh, Yasushi Takeya, Koichi Yamamoto, Ken Sugimoto, Takeshi Nakagawa, Yukie Masui, Yasumichi Arai, Tatsuro Ishizaki, Kazunori Ikebe, Yasuyuki Gondo, Kei Kamide, Hiromi Rakugi

Geriatrics & gerontology international　Vol. 18　No. 6　p. 839-846　2018/06　Research paper (scientific journal)

高齢期における主観的幸福感の安定性と変化ー9年間の縦断研究ー

中川 威

老年社会科学　Vol. 40　No. 1　p. 22-31　2018　Research paper (scientific journal)

Occlusal force is correlated with cognitive function directly as well as indirectly via food intake in community-dwelling older Japanese: From the SONIC study.

Kazunori Ikebe, Yasuyuki Gondo, Kei Kamide, Yukie Masui, Taturo Ishizaki, Yasumichi Arai, Hiroki Inagaki, Takeshi Nakagawa, Mai Kabayama, Hirochika Ryuno, Hitomi Okubo, Hajime Takeshita, Chisato Inomata, Yuko Kurushima, Yusuke Mihara, Kohdai Hatta, Motoyoshi Fukutake, Kaori Enoki, Taiji Ogawa, Ken-Ichi Matsuda, Ken Sugimoto, Ryosuke Oguro, Yoichi Takami, Norihisa Itoh, Yasushi Takeya, Koichi Yamamoto, Hiromi Rakugi, Shinya Murakami, Masahiro Kitamura, Yoshinobu Maeda

PloS one　Vol. 13　No. 1　2018　Research paper (scientific journal)

Age, Emotion Regulation, and Affect in Adulthood: The Mediating Role of Cognitive Reappraisal

Takeshi Nakagawa, Yasuyuki Gondo, Yoshiko Ishioka, Yukie Masui

JAPANESE PSYCHOLOGICAL RESEARCH　Vol. 59　No. 4　p. 301-308　2017/10　Research paper (scientific journal)

Association between dietary patterns and cognitive function among 70-year-old Japanese elderly: a cross-sectional analysis of the SONIC study

Hitomi Okubo, Hiroki Inagaki, Yasuyuki Gondo, Kei Kamide, Kazunori Ikebe, Yukie Masui, Yasumichi Arai, Tatsuro Ishizaki, Satoshi Sasaki, Takeshi Nakagawa, Mai Kabayama, Ken Sugimoto, Hiromi Rakugi, Yoshinobu Maeda

NUTRITION JOURNAL　Vol. 16　2017/09　Research paper (scientific journal)

Subjective well-being in centenarians: a comparison of Japan and the United States

Takeshi Nakagawa, Jinmyoung Cho, Yasuyuki Gondo, Peter Martin, Mary Ann Johnson, Leonard W. Poon, Nobuyoshi Hirose

Aging & Mental Health　Vol. 22　No. 10　p. 1-8　2017/07/06　Research paper (scientific journal)

Longitudinal association of hypertension and diabetes mellitus with cognitive functioning in a general 70-year-old population: the SONIC study

Hirochika Ryuno, Kei Kamide, Yasuyuki Gondo, Mai Kabayama, Ryosuke Oguro, Chikako Nakama, Serina Yokoyama, Motonori Nagasawa, Satomi Maeda-Hirao, Yuki Imaizumi, Miyuki Takeya, Hiroko Yamamoto, Masao Takeda, Yoichi Takami, Norihisa Itoh, Yasushi Takeya, Koichi Yamamoto, Ken Sugimoto, Takeshi Nakagawa, Saori Yasumoto, Kazunori Ikebe, Hiroki Inagaki, Yukie Masui, Michiyo Takayama, Yasumichi Arai, Tatsuro Ishizaki, Ryutaro Takahashi, Hiromi Rakugi

HYPERTENSION RESEARCH　Vol. 40　No. 7　p. 665-670　2017/07　Research paper (scientific journal)

Components of well-being in centenarians

Vol. 39　No. 3　p. 365-373　2017　Research paper (scientific journal)

Cross-sectional Studies on the Development of Emotion Regulation Across Adulthood: The Revised Emotion Regulation Scale

Nakagawa Takeshi, Gondo Yasuyuki, Masui Yukie, Ishioka Yoshiko

The Japanese Journal of Personality　Vol. 26　No. 3　p. 205-216　2017　Research paper (scientific journal)

Differences in the association between high blood pressure and cognitive functioning among the general Japanese population aged 70 and 80 years: The SONIC study

Hirochika Ryuno, Kei Kamide, Yasuyuki Gondo, Chikako Nakama, Ryosuke Oguro, Mai Kabayama, Tatsuo Kawai, Hiroshi Kusunoki, Serina Yokoyama, Yuki Imaizumi, Miyuki Takeya, Hiroko Yamamoto, Masao Takeda, Yoichi Takami, Norihisa Itoh, Koichi Yamamoto, Yasushi Takeya, Ken Sugimoto, Takeshi Nakagawa, Kazunori Ikebe, Hiroki Inagaki, Yukie Masui, Tatsuro Ishizaki, Michiyo Takayama, Yasumichi Arai, Ryutaro Takahashi, Hiromi Rakugi

HYPERTENSION RESEARCH　Vol. 39　No. 7　p. 557-563　2016/07　Research paper (scientific journal)

余暇活動と認知機能の関連－地域在住高齢者を対象として

小園麻里菜, 権藤恭之, 小川まどか, 石岡良子, 増井幸恵, 中川 威, 田渕 恵, 立平起子, 池邉一典, 神出 計, 新井康通, 石崎達郎, 髙橋龍太郎

老年社会科学　Vol. 38　No. 1　p. 32-44　2016　Research paper (scientific journal)

Generativity and Interaction Between the Old and Young: The Role of Perceived Respect and Perceived Rejection

Megumi Tabuchi, Takeshi Nakagawa, Asako Miura, Yasuyuki Gondo

GERONTOLOGIST　Vol. 55　No. 4　p. 537-547　2015/08　Research paper (scientific journal)

Association of personality traits with oral health-related quality of life independently of objective oral health status: A study of community-dwelling elderly Japanese

Hajime Takeshita, Kazunori Ikebe, Ryosuke Kagawa, Tadashi Okada, Yasuyuki Gondo, Takeshi Nakagawa, Yoshiko Ishioka, Chisato Inomata, Sayaka Tada, Ken-ichi Matsuda, Yuko Kurushima, Kaori Enoki, Kei Kamide, Yukie Masui, Ryutaro Takahashi, Yasumichi Arai, Yoshinobu Maeda

JOURNAL OF DENTISTRY　Vol. 43　No. 3　p. 342-349　2015/03　Research paper (scientific journal)

Occupational complexity and late-life memory and reasoning abilities

Yoshiko Ishioka, Yasuyuki Gondo, Yukie Masui, Takeshi Nakagawa, Megumi Tabuchi, Madoka Ogawa, Kei Kamide, Kazunori Ikebe, Yasumichi Arai, Tatsuro Ishizaki, Ryutaro Takahashi

The Japanese Journal of Psychology　Vol. 86　No. 3　p. 219-229　2015　Research paper (scientific journal)

[Development of a Japanese version of the Valuation of Life (VOL) scale].

Takeshi Nakagawa, Yasuyuki Gondo, Yukie Masui, Yoshiko Ishioka, Megumi Tabuchi, Kei Kamide, Kazunori Ikebe, Yasumichi Arai, Ryutaro Takahashi

Shinrigaku kenkyu : The Japanese journal of psychology　Vol. 84　No. 1　p. 37-46　2013/04　Research paper (scientific journal)

A New Concept of Successful Aging in the Oldest Old<BR> Development of Gerotranscendence and Its Influence on the Psychological Well-Being

Yasuyuki Gondo, Takeshi Nakagawa, Yukie Masui

Annual Review of Gerontology and Geriatrics　Vol. 33　No. 1　p. 109-132　2013/02/01　Research paper (scientific journal)

The causal relationship between generativity and behaviors in older adults : focusing on gender bias

Vol. 3　No. 1　p. 35-40　2013　Research paper (scientific journal)

日本版老年的超越質問紙改訂版の妥当性および信頼性の検討

増井幸恵, 中川 威, 権藤恭之, 小川まどか, 石岡良子, 立平起子, 池邉一典, 神出 計, 新井康通, 髙橋龍太郎

老年社会科学　Vol. 35　No. 1　p. 49-59　2013　Research paper (scientific journal)

A Cross-Sectional Study of the Development of Emotion Regulation in Middle and Older Age: Age, Physical Function, Emotional Regulation, and Mental Health

Takeshi Nakagawa, Yasuyuki Gondo, Yoshiko Ishioka, Megumi Tabuchi, Yukie Masui, Yoichi Kureta, Midori Takayama, Kimiko Tomizawa, Ryutarou Takahashi

The Japanese Journal of Personality　Vol. 22　No. 1　p. 13-22　2013　Research paper (scientific journal)

高齢者の世代性および世代性行動と心理的Well-beingの関係－若年者からのフィードバックに着目した検討－

田渕 恵, 中川 威, 石岡良子, 権藤恭之

世代間交流学会誌　Vol. 1　p. 19-24　2012　Research paper (scientific journal)

高齢者における短縮版 Generativity 尺度の作成と信頼性・妥当性の検討

田渕 恵, 中川 威, 権藤恭之, 小森昌彦

厚生の指標　Vol. 59　No. 3　p. 1-7　2012　Research paper (scientific journal)

The meaning of life narratives of the oldest old

Japanese journal of gerontology　Vol. 32　No. 4　p. 422-433　2011　Research paper (scientific journal)

心理的well-beingが高い虚弱超高齢者における老年的超越の特徴 : 新しく開発した日本版老年的超越質問紙を用いて

増井幸恵, 権藤恭之, 河合千恵子, 呉田陽一, 髙山 緑, 中川 威, 髙橋龍太郎, 藺牟田洋美

老年社会学　Vol. 32　No. 1　p. 33-47　2010　Research paper (scientific journal)