About the Authors

Fernando J. Sepulveda

Contributed equally to this work with: Fernando J. Sepulveda, Jorge Parodi

Affiliation Laboratory of Neurophysiology, Department of Physiology, University of Concepción, Concepción, Chile

Jorge Parodi

Contributed equally to this work with: Fernando J. Sepulveda, Jorge Parodi

Affiliation Laboratory of Neurophysiology, Department of Physiology, University of Concepción, Concepción, Chile

Robert W. Peoples

Affiliation Department of Biomedical Sciences, Marquette University, Milwaukee, Wisconsin, United States of America

Carlos Opazo

Affiliation Laboratory of Neurobiometals, Department of Physiology, University of Concepción, Concepción, Chile

Luis G. Aguayo

laguayo@udec.cl

Affiliations Laboratory of Neurophysiology, Department of Physiology, University of Concepción, Concepción, Chile, Centro de Investigación Avanzada en Educación, University of Concepción, Concepción, Chile

Competing Interests

A patent application is pending and L.G.A, C.O. and J.P. might opt to receive royalties from licenses that the University of Concepción negotiates. 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: FJS JP CO LGA. Performed the experiments: FJS JP RWP LGA. Analyzed the data: FJS JP. Wrote the paper: FJS JP CO LGA.