PS-OCT imaging (IMAGE) Optica Caption Fig. 1. (A) Brightfield photograph of the sample and selected ROI for PS-OCT imaging. (B) PSOCT Average Intensity measured in dB. (C) PS-OCT Retardance ranging from 0 to π. (D) PS-OCT Retardance Angle ranging from −π to π. (E) dMRI image of the brainstem and tractography, where the color coding indicates red for left-right, green for front-back, and blue for up-down directions. Credit Isabella Aguilera-Cuenca, University of Arizona Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.