PSY 102 Lecture Notes - Lecture 4: Necker Cube, Nanometre, Color Vision
30 Oct 2017
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Necker cube shows that sensation and perception are different. What is sensed by our eyes is just an arrangement of two-dimensional lines but we perceive it as a three-dimensional shape. What we sense does not change overtime but we perceive. Stimulus (physical energy) is raw data" about the outside world. Received by specialized cells called receptor" cells. Brain making sense of the raw data that is being received influenced by knowledge of the world. Focusing on some things while largely ignoring other things. We make choices about which parts of the environment to process more deeply. Method for studying attention developed in the 1950s: Some monitoring info besides what we are attending to must take place. Experiments how that we still monitor things that we appear to be ignoring. A light source emits electromagnetic radiation that travels as a wave. Waves can differ in amplitude and wavelength. 1 nanometer = 1 billions of a meter.
