About the Authors

Colleen E. Crangle

crangle@converspeech.com

Affiliations School of Computing and Communications, Lancaster University, Lancaster, United Kingdom, Converspeech LLC, Palo Alto, California, United States of America

Marcos Perreau-Guimaraes

Affiliation Suppes Brain Lab, Center for the Study of Language and Information, Stanford University, Stanford, California, United States of America

Patrick Suppes

Affiliation Suppes Brain Lab, Center for the Study of Language and Information, Stanford University, Stanford, California, United States of America

Competing Interests

One of the authors (Crangle) is employed by a commercial company, Converspeech LLC. 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: PS. Performed the experiments: PS. Analyzed the data: CC PS. Contributed reagents/materials/analysis tools: MP. Wrote the paper: CC.