 Just as perception can be characterized in a variety of ways, the same goes for mental imagery. One way of characterizing perception is in terms of its phenomenology: perception would be a mental process that is characterized by a certain specific phenomenology. The problem is that phenomenology is not publicly observable and, as a result, it is not a good starting point for scientific study. The same considerations apply for mental imagery. But we can also characterize perception functionally or neuroanatomically and these ways of thinking about perception would be publicly observable and, as a result, would be a good starting point for the scientific study of perception. And this is exactly how perceptual psychology and the neuroscience of perception proceeds. Again, the same considerations apply for mental imagery.