About the Authors

Ross D. Whitehead, Daniel Re, Dengke Xiao, David I. Perrett
School of Psychology, Perception Lab, University of St Andrews, St Andrews, Fife, Scotland

Gozde Ozakinci
School of Medicine, University of St Andrews, St Andrews, Fife, Scotland

Corresponding Authors

Competing Interests

The authors have read the journal's policy and have the following conflicts: This research was supported by the corporation Unilever Research and Development USA (http://www.unileverusa.com/innovation/innovationinunilever/research-dev/). The authors have no further relevant declarations relating to employment, consultancy, patents, products in developments or marketed products. These sources of funding do not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RDW DR DX DIP. Performed the experiments: RDW DR. Analyzed the data: RDW DR DIP. Contributed reagents/materials/analysis tools: DX. Wrote the paper: RDW DR GO DIP.