知觉心理学知觉过程Lecture7perception2.pdf

4 Perception Casey O’Callaghan Perception drives discussion in philosophy and the cognitive sciences because it forms our most intimate sort of acquaintance with the world. In perception, the world appears before us as available to our thoughts and susceptible to our deeds. What we perceive shapes our thinking and guides our action. The variety and the flux are impressive. Philosophical work on perception traditionally concerns whether perceptual e acquaintance with things in the world is compatible with the possibility of c n e illusions and hallucinations. Given that you cannot tell definitively if you i c S e are hallucinating, how are you acquainted with things like tomatoes, barns, v i t collisions, colors, sounds, and odors? i n g o The contemporary cognitive science of perception attempts to understand C f perceiving in naturalistic terms. Cognitive science aims to explain the pro- o k o cesses and mechanisms by which perceiving takes place in organisms under- o b d stood as biological systems. The objective is to describe and explain how a n a H e creature accomplishes the feat of perceiving given constraints imposed by its g d 0 i 1 physiology, environment, and goals. How, for instance, do your body and r b 9 m 4 brain, which are made of cells and neural tissue, ground your awareness of 1 a 5 C 9 e 3 the sights and sounds of a tomato being squashed? h 1 T 1 , 8