Answer:
Gallup's results suggest that a prerequisite for the ability to recognize yourself in a mirror is the possession of a sense of self.
Step-by-step explanation:
Gordon G. Gallup (born 1941) is an American psychologist known for his research on self-recognition with animals. In the late 70s, Gallup proposed that there is self-recognition in mirrors. After his study with chimpanzees and orangutans, he realized that the first ones were able to recognize themselves in front of a mirror after they were exposed to it for several days. In addition, those socially exposed were prone to identify themselves in front of a mirror easier than those isolated due to the fact that, among others, the chimps could discriminate their own selves, something that was not meant to happen when they were raised isolated.