@article{6fa2adb96c78474cae698a21f06cd819,
title = "Originality of divergent thinking is associated with working memory–related brain activity: Evidence from a large sample study: Originality and brain activity",
abstract = "The originality of creativity measured by divergent thinking (CMDT) is a unique variable that is positively correlated with psychometric intelligence and other psychological measures. Here, we aimed to determine the associations of CMDT originality/fluency scores and brain activity associated with working memory (WM) and simple cognitive processes during the N-back paradigm in a cohort of 1221 young adults. We observed that originality/fluency scores were associated with greater brain activity during the 0-back simple cognitive task and 2-back WM task in key nodes of the ventral attention system in the right hemisphere. Further, subjects with higher originality/fluency scores showed lower task-induced deactivations in areas of the default mode network, especially during the 2-back task. Psychological analyses revealed the associations of originality/fluency scores with both psychometric intelligence and systemizing. We also observed the effects of interaction between sex and originality/fluency scores on functional activity during the 0-back task in posterior parts of the default mode network together with other areas as well as simple processing speed. These results indicate that the originality of CMDT is associated with (a) greater activation of the ventral attention system, which is involved in reorienting attention and (b) reduced task-induced deactivation of the default mode network, which is indicative of alterations in attentional reallocation, and (c) cognitive correlates of originality of CMDT and revealed sex differences in these associations.",
keywords = "Brain activity, Creativity, Divergent thinking, N-back task, Originality, Working memory",
author = "Hikaru Takeuchi and Yasuyuki Taki and Rui Nouchi and Ryoichi Yokoyama and Yuka Kotozaki and Seishu Nakagawa and Atsushi Sekiguchi and Kunio Iizuka and Sugiko Hanawa and Tsuyoshi Araki and Miyauchi, {Carlos Makoto} and Kohei Sakaki and Yuko Sassa and Takayuki Nozawa and Shigeyuki Ikeda and Susumu Yokota and Daniele Magistro 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, 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 . The authors would like to thank Enago ( www.enago.jp ) for the English language review. 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, 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. The authors would like to thank Enago (www.enago.jp) for the English language review. Publisher Copyright: {\textcopyright} 2020 The Author(s)",
year = "2020",
month = aug,
day = "1",
doi = "10.1016/j.neuroimage.2020.116825",
language = "English",
volume = "216",
journal = "NeuroImage",
issn = "1053-8119",
publisher = "Academic Press Inc.",
}