Shinji Yamagata
Overview
Explore the profile of Shinji Yamagata including associated specialties, affiliations and a list of published articles.
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Articles
21
Citations
297
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0
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Recent Articles
1.
Takahashi Y, Yamagata S, Ritchie S, Barker E, Ando J
J Affect Disord
. 2021 May;
291:261-269.
PMID: 34052749
Background: The comorbidity of depression and anxiety is associated with an increased risk of prolonged adverse mental health status. However, little is currently known about their genetic and environmental influences...
2.
Takahashi Y, Zheng A, Yamagata S, Ando J
Sci Rep
. 2021 Feb;
11(1):3205.
PMID: 33547339
Using a genetically informative design (about 2000 twin pairs), we investigated the phenotypic and genetic and environmental architecture of a broad construct of conscientiousness (including conscientiousness per se, effortful control,...
3.
Ando J, Fujisawa K, Hiraishi K, Shikishima C, Kawamoto T, Nozaki M, et al.
Twin Res Hum Genet
. 2020 Jan;
22(6):591-596.
PMID: 31937382
The Keio Twin Research Center (KoTReC) was established in 2009 at Keio University to combine two longitudinal cohort projects - the Keio Twin Study (KTS) for adolescence and adulthood and...
4.
Takahashi Y, Pingault J, Yamagata S, Ando J
Psychol Med
. 2019 Jun;
50(8):1381-1389.
PMID: 31179952
Background: The phenotypic and aetiological architecture of depression symptomatology has been mostly studied in Western samples. In this study, we conducted a genetically informed factor analysis to elucidate both the...
5.
Sasaki S, Ozaki K, Yamagata S, Takahashi Y, Shikishima C, Kornacki T, et al.
Arch Sex Behav
. 2016 Aug;
45(7):1681-95.
PMID: 27507021
The present study examined: (1) gender and age differences of mean gender identity disorder (GID) trait scores in Japanese twins; (2) the validity of the prenatal hormone transfer theory, which...
6.
Shikishima C, Hiraishi K, Yamagata S, Ando J, Okada M
Front Psychol
. 2015 Dec;
6:1712.
PMID: 26617546
Why does decision making differ among individuals? People sometimes make seemingly inconsistent decisions with lower expected (monetary) utility even when objective information of probabilities and reward are provided. It is...
7.
Kovas Y, Garon-Carrier G, Boivin M, Petrill S, Plomin R, Malykh S, et al.
Pers Individ Dif
. 2015 Jun;
80:51-63.
PMID: 26052174
Little is known about why people differ in their levels of academic motivation. This study explored the etiology of individual differences in enjoyment and self-perceived ability for several school subjects...
8.
Hiraishi K, Shikishima C, Yamagata S, Ando J
Front Psychol
. 2015 May;
6:373.
PMID: 25954213
Prosociality is one of the most distinctive features of human beings but there are individual differences in cooperative behavior. Employing the twin method, we examined the heritability of cooperativeness and...
9.
Yamagata S, Takahashi Y, Ozaki K, Fujisawa K, Nonaka K, Ando J
Dev Sci
. 2013 Feb;
16(2):249-259.
PMID: 23432834
This twin study examined the bidirectional relationship between maternal parenting behaviors and children's peer problems that were not confounded by genetic and family environmental factors. Mothers of 259 monozygotic twin...
10.
Ando J, Fujisawa K, Shikishima C, Hiraishi K, Nozaki M, Yamagata S, et al.
Twin Res Hum Genet
. 2013 Feb;
16(1):202-16.
PMID: 23394192
The Keio Twin Research Center has conducted two longitudinal twin cohort projects and has collected three independent and anonymous twin data sets for studies of phenotypes related to psychological, socio-economic,...