About the Authors

Tim M. Gale

t.gale@herts.ac.uk

Affiliations Department of Research, Hertfordshire Partnership University NHS Foundation Trust, Hatfield, United Kingdom, Department of Psychology, University of Hertfordshire, Hatfield, United Kingdom

Christopher J. Hawley

Affiliation Department of Post-graduate Medicine, University of Hertfordshire, Hatfield, United Kingdom

John Butler

Affiliation School of Health, University of Central Lancaster, Preston, United Kingdom

Adrian Morton

Affiliation Reigate Psychology Service, Reigate, Surrey, United Kingdom

Ankush Singhal

Affiliation Psychological Medicine Service, The Royal Oldham Hospital, Oldham, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TMG CJH. Performed the experiments: TMG CJH JB AM AS. Analyzed the data: TMG. Wrote the paper: TMG CJH.