About the Authors

Lesley J. Rogers


Affiliation Centre for Neuroscience and Animal Behaviour, University of New England, Armidale, Australia

Giorgio Vallortigara

Affiliation Centre for Mind/Brain Sciences, University of Trento, Rovereto, Italy

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GV LR. Performed the experiments: GV LR. Analyzed the data: GV LR. Wrote the paper: GV LR.