Fig. 4: Measurement reliability of crowding distance and map size.

a Test-retest correlation of λ. Each dot is one observer, with one value of λ measured from each of two test sessions on different days. b Correlation in map surface area across two researchers. Two researchers independently delineated the boundaries of the four retinotopic maps in each hemisphere of each observer. The surface areas plotted are bilateral (summed across L and R) and are limited to 10 deg of eccentricity. See makeFig4.m in GitHub repository.