About the Authors

Markku Kilpeläinen

markku.kilpelainen@helsinki.fi

Affiliation Department of Behavioural Sciences, University of Helsinki, Helsinki, Finland

Lauri Nurminen

Affiliation Brain Research Unit, Low Temperature Laboratory, Aalto University School of Science and Technology, Espoo, Finland

Kristian Donner

Affiliation Department of Biosciences, University of Helsinki, Helsinki, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MK KD. Performed the experiments: MK LN. Analyzed the data: MK. Wrote the paper: MK KD LN.