PMID- 20655361 OWN - NLM STAT- MEDLINE DCOM- 20101222 LR - 20191210 IS - 1872-7972 (Electronic) IS - 0304-3940 (Linking) VI - 482 IP - 3 DP - 2010 Oct 4 TI - Medial prefrontal cortex-dorsal anterior cingulate cortex connectivity during behavior selection without an objective correct answer. PG - 220-4 LID - 10.1016/j.neulet.2010.07.041 [doi] AB - Life choices (e.g., occupational choice) often include situations with two or more possible correct answers, thereby putting us in a situation of conflict. Recent reports have described that the evaluation of conflict might be crucially mediated by neural activity in the dorsal anterior cingulate cortex (dACC), although the reduction of conflict might rather be associated with neural activity in the medial prefrontal cortex (MPFC). What remains unclear is whether these regions mutually interact, thereby raising the question of their functional connectivity during conflict situations. Using psychophysiological interaction (PPI) analyses of functional magnetic resonance imaging (fMRI) data, this study shows that the dACC co-varied significantly higher with the MPFC during an occupational choice task with two possible correct answers when compared to the control task: a word-length task with one possible correct answer. These results suggest that the MPFC has a functional relation with dACC, especially in conflict situations where there is no objective correct answer. Taken together, this lends support to the assumption that the MPFC might be crucial in biasing the decision, thereby reducing conflict. CI - (c) 2010 Elsevier Ireland Ltd. All rights reserved. FAU - Nakao, Takashi AU - Nakao T AD - Japan Society for the Promotion of Science (JSPS), Japan. takana818@gmail.com FAU - Osumi, Takahiro AU - Osumi T FAU - Ohira, Hideki AU - Ohira H FAU - Kasuya, Yukinori AU - Kasuya Y FAU - Shinoda, Jun AU - Shinoda J FAU - Yamada, Jitsuhiro AU - Yamada J FAU - Northoff, Georg AU - Northoff G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100722 PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 SB - IM MH - Adult MH - Brain Mapping MH - Choice Behavior/*physiology MH - *Conflict, Psychological MH - Female MH - Gyrus Cinguli/*physiology MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Neural Pathways/*physiology MH - Prefrontal Cortex/*physiology MH - Young Adult EDAT- 2010/07/27 06:00 MHDA- 2010/12/24 06:00 CRDT- 2010/07/27 06:00 PHST- 2010/02/05 00:00 [received] PHST- 2010/06/07 00:00 [revised] PHST- 2010/07/17 00:00 [accepted] PHST- 2010/07/27 06:00 [entrez] PHST- 2010/07/27 06:00 [pubmed] PHST- 2010/12/24 06:00 [medline] AID - S0304-3940(10)00952-3 [pii] AID - 10.1016/j.neulet.2010.07.041 [doi] PST - ppublish SO - Neurosci Lett. 2010 Oct 4;482(3):220-4. doi: 10.1016/j.neulet.2010.07.041. Epub 2010 Jul 22.