PupilEXT: Flexible Open-Source Platform for High-Resolution Pupillometry in Vision Research.

ABSTRACT: The human pupil behavior has gained increased attention due to the discovery of the intrinsically photosensitive retinal ganglion cells and the afferent pupil control path's role as a biomarker for cognitive processes. Diameter changes in the range of 10^-2 mm are of interest, requiring reliable and characterized measurement equipment to accurately detect neurocognitive effects on the pupil. Mostly commercial solutions are used as measurement devices in pupillometry which is associated with high investments. Moreover, commercial systems rely on closed software, restricting conclusions about the used pupil-tracking algorithms. Here, we developed an open-source pupillometry platform consisting of hardware and software competitive with high-end commercial stereo eye-tracking systems

SUBMITTER: Zandi B 

PROVIDER: S-EPMC8249868 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature