About the Authors
- Yutaka Sakai
- Brain Science Institute, Tamagawa University, Machida, Tokyo, Japan
- Tomoki Fukai
- Laboratory for Neural Circuit Theory, Brain Science Institute, RIKEN, Wako, Saitama, Japan
The authors have declared that no competing interests exist.
Conceived and designed the experiments: YS. Performed the experiments: YS. Wrote the paper: TF.