About the Authors

Edith Roussel

Affiliation Research Center on Animal Cognition (UMR5169), Centre National de la Recherche Scientifique (CNRS) - University Paul-Sabatier, Toulouse, France

Julie Carcaud

Affiliation Research Center on Animal Cognition (UMR5169), Centre National de la Recherche Scientifique (CNRS) - University Paul-Sabatier, Toulouse, France

Jean-Christophe Sandoz

Affiliation Research Center on Animal Cognition (UMR5169), Centre National de la Recherche Scientifique (CNRS) - University Paul-Sabatier, Toulouse, France

Martin Giurfa

giurfa@cict.fr

Affiliation Research Center on Animal Cognition (UMR5169), Centre National de la Recherche Scientifique (CNRS) - University Paul-Sabatier, Toulouse, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JCS MG. Performed the experiments: ER JC. Analyzed the data: ER. Wrote the paper: ER MG.