About the Authors

Gordon J. Troup

Affiliation School of Physics, Monash University, Victoria, 3800, Australia

Luciano Navarini

Affiliation illycaffé Spa, via Flavia 110, 34147, Trieste, Italy

Furio Suggi Liverani

Affiliation illycaffé Spa, via Flavia 110, 34147, Trieste, Italy

Simon C. Drew

sdrew@unimelb.edu.au

Affiliation Florey Department of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia

Competing Interests

LN and FSL are employees of illycaffè s.p.a, Italy. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: GJT FSL LN SCD. Performed the experiments: GJT FSL SCD. Analyzed the data: GJT SCD. Contributed reagents/materials/analysis tools: LN FSL SCD. Wrote the paper: LN SCD.