About the Authors

Caroline J. Falconer

Affiliation Clinical Educational & Health Psychology, University College London, London, United Kingdom

Mel Slater

Affiliations Department of Computer Science, University College London, London, United Kingdom, Institució Catalana de Recerca i Estudis Avançats, University of Barcelona, Barcelona, Spain

Aitor Rovira

Affiliation Department of Computer Science, University College London, London, United Kingdom

John A. King

Affiliation Clinical Educational & Health Psychology, University College London, London, United Kingdom

Paul Gilbert

Affiliation Mental Health Research Unit, University of Derby, Derby, United Kingdom

Angus Antley

Affiliation Department of Computer Science, University College London, London, United Kingdom

Chris R. Brewin

c.brewin@ucl.ac.uk

Affiliation Clinical Educational & Health Psychology, University College London, London, United Kingdom

Competing Interests

Mel Slater is no longer a PLOS ONE Editorial Board member. Nevertheless the authors can confirm that his previous position does not alter their adherence to PLOS ONE Editorial policies and criteria.

Author Contributions

Conceived and designed the experiments: CF MS AR JK PG AA CB. Performed the experiments: CF AR. Analyzed the data: CF MS CB. Contributed reagents/materials/analysis tools: AR AA. Wrote the paper: CF MS AR JK PG CB. Approved the final version of the manuscript for submission: CF MS AR JK PG AA CB.