 Other control groups were to wear the device with normal vision, or wear a dummy device with no vision.At the end of the experiment, the monkeys were to be euthanized, and the visual, auditory and motor areas in their brains would be studied.According to PETA's president Ingrid Newkirk, based on papers found in the lab by the ALF, the UCR researchers wrote that performing the study by artificially blinding the monkeys was necessary because there were insufficient numbers of blind human infants within driving distance of Riverside.