PSYB51H3 Lecture Notes - Lecture 1: Absolute Threshold, Magnetic Resonance Imaging, Stellar Magnetic Field
Document Summary
If you"re talking about what you can feel, what you can smell, what you can taste and see, then real is simply electrical signals interpreted by your brain. This is the world that you know. morpheus, the matrix. Plato"s the allegory of the cave : he proposed we are all prisoners in a cave with the sole source of light behind our back. And everything we see is the shadows of movement behind our back. Our conception of reality is critically dependent on information gather through our senses. Bees can see ultraviolet range of light. Dogs have sophisticated sense of smell and wide range of sounds. A child named ben underwood who lost his eyesight was able to learn how to use echolocation to communicate. Plato: our understanding of reality is restricted to things we can perceive. Heraclitus (540-480bce): you can never step into the same rive twice .
