Amygdala and cingulate structure is associated with stereotype on sex-role

Hikaru Takeuchi; Yasuyuki Taki; Atsushi Sekiguchi; Rui Nouchi; Yuka Kotozaki; Seishu Nakagawa; Carlos Makoto Miyauchi; Kunio Iizuka; Ryoichi Yokoyama; Takamitsu Shinada; Yuki Yamamoto; Sugiko Hanawa; Tsuyoshi Araki; Hiroshi Hashizume; Keiko Kunitoki; Yuko Sassa; Ryuta Kawashima

doi:10.1038/srep14220

Amygdala and cingulate structure is associated with stereotype on sex-role

Hikaru Takeuchi, Yasuyuki Taki, Atsushi Sekiguchi, Rui Nouchi, Yuka Kotozaki, Seishu Nakagawa, Carlos Makoto Miyauchi, Kunio Iizuka, Ryoichi Yokoyama, Takamitsu Shinada, Yuki Yamamoto, Sugiko Hanawa, Tsuyoshi Araki, Hiroshi Hashizume, Keiko Kunitoki, Yuko Sassa, Ryuta Kawashima

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Sex-role egalitarianism (SRE) is the belief that the sex of an individual should not influence the perception of his or her rights, abilities, obligations, and opportunities. Thus, low SRE reflects a more conservative stereotypical view on sex-role. Here we investigated anatomical correlates of individual differences in SRE in the present study. We used voxel-based morphometry, a questionnaire to determine an individual's SRE and associated psychological measures, and determined the association of SRE with gray matter structures and their cognitive nature in healthy individuals (375 men and 306 women; age, 20.6±1.8 years). We demonstrated that higher SRE was associated with smaller regional gray matter density (rGMD) in the anterior part of the posterior cingulate cortex (PCC) and higher rGMD in the right amygdala. Post-hoc analyses revealed psychological measures characterized by contentious interpersonal orientations, such as contentious achievement motivation, were associated with lower SRE and higher rGMD in the anterior part of PCC. Depressive tendencies were associated with lower SRE and higher rGMD in the right amygdala. These findings suggest that variations in stereotype on sex role have roots in the limbic brain structures linked to contentious interpersonal orientation (cingulate) and negative mood (amygdala).

Original language	English
Article number	14220
Journal	Scientific reports
Volume	5
DOIs	https://doi.org/10.1038/srep14220
Publication status	Published - 2015 Sept 30
Externally published	Yes

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Takeuchi, H., Taki, Y., Sekiguchi, A., Nouchi, R., Kotozaki, Y., Nakagawa, S., Miyauchi, C. M., Iizuka, K., Yokoyama, R., Shinada, T., Yamamoto, Y., Hanawa, S., Araki, T., Hashizume, H., Kunitoki, K., Sassa, Y., & Kawashima, R. (2015). Amygdala and cingulate structure is associated with stereotype on sex-role. Scientific reports, 5, Article 14220. https://doi.org/10.1038/srep14220

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title = "Amygdala and cingulate structure is associated with stereotype on sex-role",

abstract = "Sex-role egalitarianism (SRE) is the belief that the sex of an individual should not influence the perception of his or her rights, abilities, obligations, and opportunities. Thus, low SRE reflects a more conservative stereotypical view on sex-role. Here we investigated anatomical correlates of individual differences in SRE in the present study. We used voxel-based morphometry, a questionnaire to determine an individual's SRE and associated psychological measures, and determined the association of SRE with gray matter structures and their cognitive nature in healthy individuals (375 men and 306 women; age, 20.6±1.8 years). We demonstrated that higher SRE was associated with smaller regional gray matter density (rGMD) in the anterior part of the posterior cingulate cortex (PCC) and higher rGMD in the right amygdala. Post-hoc analyses revealed psychological measures characterized by contentious interpersonal orientations, such as contentious achievement motivation, were associated with lower SRE and higher rGMD in the anterior part of PCC. Depressive tendencies were associated with lower SRE and higher rGMD in the right amygdala. These findings suggest that variations in stereotype on sex role have roots in the limbic brain structures linked to contentious interpersonal orientation (cingulate) and negative mood (amygdala).",

author = "Hikaru Takeuchi and Yasuyuki Taki and Atsushi Sekiguchi and Rui Nouchi and Yuka Kotozaki and Seishu Nakagawa and Miyauchi, {Carlos Makoto} and Kunio Iizuka and Ryoichi Yokoyama and Takamitsu Shinada and Yuki Yamamoto and Sugiko Hanawa and Tsuyoshi Araki and Hiroshi Hashizume and Keiko Kunitoki and Yuko Sassa and Ryuta Kawashima",

note = "Funding Information: We thank Yuki Yamada for operating the MRI scanner, Haruka Nouchi for conducting the psychological tests, all other assistants for helping with the experiments and the study, and the study participants and all our other colleagues at IDAC, Tohoku University for their support. This study was supported by JST/ RISTEX, JST/CREST, a Grant-in-Aid for Young Scientists (B) (KAKENHI 23700306) and a Grant-in-Aid for Young Scientists (A) (KAKENHI 25700012) from the Ministry of Education, Culture, Sports, Science, and Technology. Publisher Copyright: {\textcopyright} 2015 Scientific Reports.",

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day = "30",

doi = "10.1038/srep14220",

language = "English",

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T1 - Amygdala and cingulate structure is associated with stereotype on sex-role

AU - Takeuchi, Hikaru

AU - Taki, Yasuyuki

AU - Sekiguchi, Atsushi

AU - Nouchi, Rui

AU - Kotozaki, Yuka

AU - Nakagawa, Seishu

AU - Miyauchi, Carlos Makoto

AU - Iizuka, Kunio

AU - Yokoyama, Ryoichi

AU - Shinada, Takamitsu

AU - Yamamoto, Yuki

AU - Hanawa, Sugiko

AU - Araki, Tsuyoshi

AU - Hashizume, Hiroshi

AU - Kunitoki, Keiko

AU - Sassa, Yuko

AU - Kawashima, Ryuta

N1 - Funding Information: We thank Yuki Yamada for operating the MRI scanner, Haruka Nouchi for conducting the psychological tests, all other assistants for helping with the experiments and the study, and the study participants and all our other colleagues at IDAC, Tohoku University for their support. This study was supported by JST/ RISTEX, JST/CREST, a Grant-in-Aid for Young Scientists (B) (KAKENHI 23700306) and a Grant-in-Aid for Young Scientists (A) (KAKENHI 25700012) from the Ministry of Education, Culture, Sports, Science, and Technology. Publisher Copyright: © 2015 Scientific Reports.

PY - 2015/9/30

Y1 - 2015/9/30

N2 - Sex-role egalitarianism (SRE) is the belief that the sex of an individual should not influence the perception of his or her rights, abilities, obligations, and opportunities. Thus, low SRE reflects a more conservative stereotypical view on sex-role. Here we investigated anatomical correlates of individual differences in SRE in the present study. We used voxel-based morphometry, a questionnaire to determine an individual's SRE and associated psychological measures, and determined the association of SRE with gray matter structures and their cognitive nature in healthy individuals (375 men and 306 women; age, 20.6±1.8 years). We demonstrated that higher SRE was associated with smaller regional gray matter density (rGMD) in the anterior part of the posterior cingulate cortex (PCC) and higher rGMD in the right amygdala. Post-hoc analyses revealed psychological measures characterized by contentious interpersonal orientations, such as contentious achievement motivation, were associated with lower SRE and higher rGMD in the anterior part of PCC. Depressive tendencies were associated with lower SRE and higher rGMD in the right amygdala. These findings suggest that variations in stereotype on sex role have roots in the limbic brain structures linked to contentious interpersonal orientation (cingulate) and negative mood (amygdala).

AB - Sex-role egalitarianism (SRE) is the belief that the sex of an individual should not influence the perception of his or her rights, abilities, obligations, and opportunities. Thus, low SRE reflects a more conservative stereotypical view on sex-role. Here we investigated anatomical correlates of individual differences in SRE in the present study. We used voxel-based morphometry, a questionnaire to determine an individual's SRE and associated psychological measures, and determined the association of SRE with gray matter structures and their cognitive nature in healthy individuals (375 men and 306 women; age, 20.6±1.8 years). We demonstrated that higher SRE was associated with smaller regional gray matter density (rGMD) in the anterior part of the posterior cingulate cortex (PCC) and higher rGMD in the right amygdala. Post-hoc analyses revealed psychological measures characterized by contentious interpersonal orientations, such as contentious achievement motivation, were associated with lower SRE and higher rGMD in the anterior part of PCC. Depressive tendencies were associated with lower SRE and higher rGMD in the right amygdala. These findings suggest that variations in stereotype on sex role have roots in the limbic brain structures linked to contentious interpersonal orientation (cingulate) and negative mood (amygdala).

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DO - 10.1038/srep14220

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VL - 5

JO - Scientific reports

JF - Scientific reports

M1 - 14220

ER -

Amygdala and cingulate structure is associated with stereotype on sex-role

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