This study aims to develop a Japanese version of the remote associates test required to decompose semantic chunks for use not only in behavioral studies but also in brain researches. Further, this study attempted to reveal the relationship between the process of solving insight problems and brain activities. Results of the behavioral data show that the solution time was significantly longer in the chunked than in the non-chunked condition. The imaging data identified the following brain activities. First, the right and left cingulate gyri, related to conflict monitoring, were more activated during the process of searching for a target in the chunked than in the non-chunked condition. Second, the left posterior cingulate gyrus was more activated when the participants could find a target by overcoming constraints as semantic chunks related to emotional process.