A researcher presents a blindfolded subject with a sweet liquid and then adds a drop of sweetener to the liquid and has the subject taste it. This process continues until the subject tells the researcher that the liquid tastes "sweeter." Regarding the sense of taste, this researcher is seeking the __________ threshold.
A)absolute
B)subliminal
C)phosphene
D)difference

Question

Quizplus · Accepted Answer

The researcher is seeking the "difference" threshold, which refers to the minimum difference in stimulation that a person can detect 50% of the time. In this case, it's the smallest change in sweetness level that the subject can perceive.

A Researcher Presents a Blindfolded Subject with a Sweet Liquid