Topic: implanted LED array

Local stimulation in high-level cortical visual areas perturbs the contents of visual perception. Understanding how the contents of perception are altered by cortical stimulation is necessary for characterizing visual hallucinations in mental disorders and developing visual prosthetics. Anecdotal verbal reports by human patients constitute the main body of evidence in this area of research. The absence of speaking ability in nonhuman primates severely limits the systematic and high-throughput study of stimulation-induced perceptual events. Here we introduce a novel methodology, perceptography