About the Authors
- Thomas Kantermann
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Contributed equally to this work with: Thomas Kantermann, Sebastian Forstner
Affiliation Centre for Behaviour and Neurosciences, University of Groningen, Groningen, The Netherlands
- Sebastian Forstner
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Contributed equally to this work with: Thomas Kantermann, Sebastian Forstner
Affiliation County Hospital Schrobenhausen, Schrobenhausen, Germany
- Martin Halle
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Affiliation Department for Prevention and Sports Medicine, Technical University Munich, Munich, Germany
- Luc Schlangen
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Affiliation Philips Lighting, Eindhoven, The Netherlands
- Till Roenneberg
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Affiliation Institute for Medical Psychology, Ludwig-Maximilians-University Munich, Munich, Germany
- Arno Schmidt-Trucksäss
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* E-mail: Arno.Schmidt-Trucksaess@unibas.ch
Affiliation Institute of Exercise and Health Sciences, University of Basel, Basel, Switzerland
Competing Interests
Co-author Luc Schlangen is employed by Philips Lighting, Eindhoven. Two experimental lights (HF3309 PL-L 36 W Philips EnergyLights, with a correlated color temperature of 5000 K) were used in this study. There are no further patents, products in development or marketed products to declare. This does not alter the authors‘ adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: TK SF LS TR AST. Performed the experiments: SF AST. Analyzed the data: TK SF TR AST. Contributed reagents/materials/analysis tools: MH AST. Wrote the paper: TK SF LS MH TR AST.