About the Authors

Xi Yu

Affiliation Division of Speech and Hearing Sciences, the University of Hong Kong, Hong Kong SAR

Yanchao Bi

Affiliation National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China

Zaizhu Han

Affiliation National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China

Sam-Po Law

splaw@hku.hk

Affiliation Division of Speech and Hearing Sciences, the University of Hong Kong, Hong Kong SAR

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YB ZH SPL. Performed the experiments: XY. Analyzed the data: XY. Wrote the paper: XY SPL.