PSYA01H3 Chapter Notes - Chapter 4: Joshua Bell, Action Potential, Absolute Threshold
Document Summary
Psychological science chapter 4: sensation and perception. 4. 1 sensation and perception at a glance: context plays an extremely important role in what people sense and perceive. Includes recognizing sound as a human voice and understanding that certain colors and motions together make up the image of a human being walking towards you. For example, when you exit a dark movie theater, the sound and light you encounter initially seem intense, however you gradually adapt to it. For example, on a clear night, a candle flame can be detected at 30 miles away. One drop of perfume is all that is needed for detection in a three-room apartment. The minimum amount of pressure, sound, light, or chemical required for detection varies among individuals and across the life span. The family dog may startle, bark, and tear for. 1 the door before you can even detect a visitor"s approach.
