Before revision: Examples of perceptual systems include: The human visual system The human auditory system A bat's sonar/echolocation system A man-made light intensity meter A man-made motion detector Research in the field of perceptual systems focuses on computational aspects of perception.
After revision: Examples of perceptual systems include: The human visual system The human auditory system A bat's sonar/echolocation system A man-made light meter A man-made motion detector Research in the field of perceptual systems focuses on computational aspects of perception.