TY - JOUR
T1 - Regional gray matter density is associated with achievement motivation
T2 - Evidence from voxel-based morphometry
AU - Takeuchi, Hikaru
AU - Taki, Yasuyuki
AU - Nouchi, Rui
AU - Sekiguchi, Atsushi
AU - Kotozaki, Yuka
AU - Miyauchi, Carlos Makoto
AU - Yokoyama, Ryoichi
AU - Iizuka, Kunio
AU - Hashizume, Hiroshi
AU - Nakagawa, Seishu
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, the other assistants who helped with the experiments and the study, and the participants and all our other colleagues at IDAC, Tohoku University for their support. This study was supported by JST/RISTEX, JST/CREST, and a Grant-in-Aid for Young Scientists (B) (KAKENHI 23700306) from the Ministry of Education, Culture, Sports, Science, and Technology. The authors would like to thank Enago ( http://www.enago.jp ) for the English language review.
PY - 2014/1
Y1 - 2014/1
N2 - Achievement motivation can be defined as a recurrent need to improve one's past performance. Despite previous functional imaging studies on motivation-related functional activation, the relationship between regional gray matter (rGM) morphology and achievement motivation has never been investigated. We used voxel-based morphometry and a questionnaire (achievement motivation scale) to measure individual achievement motivation and investigated the association between rGM density (rGMD) and achievement motivation [self-fulfillment achievement motivation (SFAM) and competitive achievement motivation (CAM) across the brain in healthy young adults (age 21.0 ± 1.8 years, men (n = 94), women (n = 91)]. SFAM and rGMD significantly and negatively correlated in the orbitofrontal cortex (OFC). CAM and rGMD significantly and positively correlated in the right putamen, insula, and precuneus. These results suggest that the brain areas that play central roles in externally modulated motivation (OFC and putamen) also contribute to SFAM and CAM, respectively, but in different ways. Furthermore, the brain areas in which rGMD correlated with CAM are related to cognitive processes associated with distressing emotions and social cognition, and these cognitive processes may characterize CAM.
AB - Achievement motivation can be defined as a recurrent need to improve one's past performance. Despite previous functional imaging studies on motivation-related functional activation, the relationship between regional gray matter (rGM) morphology and achievement motivation has never been investigated. We used voxel-based morphometry and a questionnaire (achievement motivation scale) to measure individual achievement motivation and investigated the association between rGM density (rGMD) and achievement motivation [self-fulfillment achievement motivation (SFAM) and competitive achievement motivation (CAM) across the brain in healthy young adults (age 21.0 ± 1.8 years, men (n = 94), women (n = 91)]. SFAM and rGMD significantly and negatively correlated in the orbitofrontal cortex (OFC). CAM and rGMD significantly and positively correlated in the right putamen, insula, and precuneus. These results suggest that the brain areas that play central roles in externally modulated motivation (OFC and putamen) also contribute to SFAM and CAM, respectively, but in different ways. Furthermore, the brain areas in which rGMD correlated with CAM are related to cognitive processes associated with distressing emotions and social cognition, and these cognitive processes may characterize CAM.
KW - Achievement motivation
KW - Orbitofrontal cortex (OFC)
KW - Precuneus
KW - Putamen
KW - Regional gray matter density (rGMD)
KW - Voxel-based morphometry (VBM)
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U2 - 10.1007/s00429-012-0485-3
DO - 10.1007/s00429-012-0485-3
M3 - Article
C2 - 23212300
AN - SCOPUS:84892369426
SN - 1863-2653
VL - 219
SP - 71
EP - 83
JO - Brain Structure and Function
JF - Brain Structure and Function
IS - 1
ER -