1. Department of Functional Brain Imaging; Institute of Development, Aging and Cancer (IDAC), Tohoku University; Sendai 980-8575 Japan
2. Department of Cognitive and Behavioral Sciences, Graduate School of Human and Environmental Studies; Kyoto University; Kyoto 606-8501 Japan
3. Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Science (FRIS), Tohoku University; Sendai 980-8578 Japan
4. Smart Ageing International Research Center (SAIRAC), Institute of Development, Aging and Cancer (IDAC), Tohoku University; Sendai 980-8575 Japan
5. Human and Social Response Research Division, International Research Institute of Disaster Science (IRIDeS), Tohoku University; Sendai 980-8575 Japan