A key question that they addressed was how we organize what we see. All sensory systems have both absolute and difference thresholds, which refer to the minimum amount of stimulus energy or the minimum amount of difference in stimulus energy required to be detected about 50% of the time, respectively. Sensation is input about the physical world obtained by our sensory receptors, and perception is the process by which the brain selects, organizes, and interprets these sensations. receiving sensory information by the sense organ, conversion of sensory energy into neural impulse, sending sensory info to the relevant areas of the brain, giving meaning to sensory information so that it can be understood. The fifth law, the law of common fate asserts we things moving in same direction have a tendency to be seen as belonging together. One way to think of this concept is that sensation is a physical process, whereas perception is psychological. Nearly half of the people who watched the video didnt notice the gorilla at all, despite the fact that he was clearly visible for nine seconds.
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