Head mounted DMD based projection system for natural and prosthetic visual stimulation in freely moving rats.

ABSTRACT: Novel technologies are constantly under development for vision restoration in blind patients. Many of these emerging technologies are based on the projection of high intensity light patterns at specific wavelengths, raising the need for the development of specialized projection systems. Here we present and characterize a novel projection system that meets the requirements for artificial retinal stimulation in rats and enables the recording of cortical responses. The system is based on a customized miniature Digital Mirror Device (DMD) for pattern projection, in both visible (525 nm) and NIR (915 nm) wavelengths, and a lens periscope for relaying the pattern directly onto the animal's retina. Thorough system characterization and the investigation of the effect of various parameters on obtai

SUBMITTER: Arens-Arad T 

PROVIDER: S-EPMC5059752 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature