About the Authors

Ilka Diester

Affiliation Primate NeuroCognition Laboratory, Department of Cognitive Neurology, Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany

Andreas Nieder

To whom correspondence should be addressed. E-mail: andreas.nieder@uni-tuebingen.de

Affiliation Primate NeuroCognition Laboratory, Department of Cognitive Neurology, Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ID and AN conceived and designed the experiments. ID performed the experiments and analyzed the data. AN contributed reagents/materials/analysis tools. ID and AN wrote the paper.