Difference+Threshold

toc = = = Definition: = A measure of the smallest increase or decrease in a physical stimulus that is required to produce a difference in sensation that is noticeable 50% of the time. Gen Psych, CH 3, pp. 71



= Examples: = for example, I would ask you to put your hand out and in it i placed a pile of sand. then, I add tiny amount of sand to your hand and ask you to tell me when you notice any change in the overall weight. as soon as you can detect any change in the weight, that difference between the weight of the sand befor i added that last bit of sand and the amount of sand after i added it, is the difference threshold.

= Analogies: = An analogy would be the changing of a person over there life time and seeing the noticeable changes over there life span.

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