PS101 Chapter Notes - Chapter 4: Hair Cell, Inattentional Blindness, Inner Ear
Document Summary
Percepion the selecion, organizaion, and interpretaion of sensory input. Sensaion is light waves being absorbed for example, whereas percepion is when you make something meaningful out of it. Threshold dividing point between energy levels that do and don"t have a detectable efect the weakest detecible simulus. Just noiceable diference (jnd) smallest diference in the amount of simulaion that a speciic sense can detect. Weber"s law the size of a jnd is a constant proporion of the size of the iniial simulus: the size for liting weights is approx. 1/30 this means that if you lit a 300-gram weight you will only noice it geing heavier at 310-grams. Fechner"s law the magnitude of a sensory experience is proporional to the # of jnds that the simulus causing the experience causing the experience is above the absolute threshold: example. Let"s say you have a lamp with 3 light bulbs in dark room.
