An introduction to the physiological and psychological basis of perception across the different sensory modalities in humans and lower animals, with an emphasis on vision. Exploring visual perception such as shape and objects, scenes, colour, space, and motion as well as auditory perception of simple and complex sounds, and location. Further topics may include touch, including perception of temperature, pain and body posture, the chemical senses, and cross-modal influences of the senses on one another. In-class demonstrations may supplement the lectures.