1. Research Center for Child Mental Development, Chiba University, Chiba, Japan.
2. United Graduate School of Child Development, Osaka University, Suita, Japan.
3. Department of Radiology, Chiba University Hospital, Chiba, Japan.
4. Institute for Quantum Medical Science, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan.
5. Department of Cognitive Behavioral Physiology, Graduate School of Medicine, Chiba University, Chiba, Japan.