View the My Take video and then answer the questions.

View the transcript (Opens in new window)

Question 1
Which pioneers of psychophysics identified a law that states that the amount a stimulus must change before we can detect that change is proportional to the magnitude of the original stimulus?
Question 2
Chenix is used to drinking filtered water, and keeps a filtration pitcher in his refrigerator. His wife hates the expense of the filters, so she begins to tell him that she changed the filter when she hadn’t to save money. In order for Chenix to recognize the change in flavor of the water, the taste change would have to surpass his blank threshold.
Question 3
The difference threshold, also called the just noticeable difference, is the minimum change in a stimulus that is needed in order for that change to be detected blank % of the time.
Question 4
Your Take! Under what circumstances do you think that your difference threshold for a given stimulus would temporarily increase or decrease?