About the Authors

Daniel R. Saunders

daniel_saunders@meei.harvard.edu

Affiliation Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, Massachusetts, United States of America

Peter J. Bex

Affiliation Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, Massachusetts, United States of America

Dylan J. Rose

Affiliation Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, Massachusetts, United States of America

Russell L. Woods

Affiliation Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, Massachusetts, United States of America

Competing Interests

The information acquisition method described in this paper for scoring natural language responses relative to a normative dataset is part of a patent application, naming DRS, PJB and RLW, that was submitted by the Schepens Eye Research Institute. The patent application titled “Measuring Information Acquisition Using Free Recall”, Application No.: 61/700,111, was filed September 12, 2012 as a provisional application and as a full application on September 12, 2013. This patent application does not alter our adherence to the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: DRS RLW PJB. Performed the experiments: DJR DRS. Analyzed the data: DRS RLW DJR. Wrote the paper: DRS RLW PJB DJR.