About the Authors

Fernando Guerrieri

Contributed equally to this work with: Fernando Guerrieri, Marco Schubert

Affiliation Centre de Recherches sur la Cognition Animale, CNRS, Université Paul-Sabatier (UMR 5169), Toulouse, France

Marco Schubert

Contributed equally to this work with: Fernando Guerrieri, Marco Schubert

Affiliation Centre de Recherches sur la Cognition Animale, CNRS, Université Paul-Sabatier (UMR 5169), Toulouse, France

Jean-Christophe Sandoz

Affiliation Centre de Recherches sur la Cognition Animale, CNRS, Université Paul-Sabatier (UMR 5169), Toulouse, France

Martin Giurfa

To whom correspondence should be addressed. E-mail: giurfa@cict.fr

Affiliation Centre de Recherches sur la Cognition Animale, CNRS, Université Paul-Sabatier (UMR 5169), Toulouse, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

MG and JCS conceived and designed the experiments. FG and MS performed the experiments. FG, MS, and JCS analyzed the data. MG, FG, MS, and JCS wrote the paper.