About the Authors

Giancarlo La Camera

Affiliation Laboratory of Neuropsychology, National Institute of Mental Health, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America

Barry J. Richmond

bjr@ln.nimh.nih.gov

Affiliation Laboratory of Neuropsychology, National Institute of Mental Health, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GLC BJR. Performed the experiments: GLC BJR. Analyzed the data: GLC BJR. Contributed reagents/materials/analysis tools: GLC BJR. Wrote the paper: GLC BJR.