Single neural code for blur in subjects with different interocular optical blur orientation.

ABSTRACT: The ability of the visual system to compensate for differences in blur orientation between eyes is not well understood. We measured the orientation of the internal blur code in both eyes of the same subject monocularly by presenting pairs of images blurred with real ocular point spread functions (PSFs) of similar blur magnitude but varying in orientations. Subjects assigned a level of confidence to their selection of the best perceived image in each pair. Using a classification-images-inspired paradigm and applying a reverse correlation technique, a classification map was obtained from the weighted averages of the PSFs, representing the internal blur code. Positive and negative neural PSFs were obtained from the classification map, representing the neural blur for best and worse perceived

SUBMITTER: Radhakrishnan A 

PROVIDER: S-EPMC4484355 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature