In the nineteenth century, a psychophysicist named Ernst Weber found that:
A) the amount of change that is necessary for a stimulus to be noticed is systematically related to the intensity of the original stimulus itself.
B) for each stimulus there is an equal but opposite reaction.
C) the ratio between stimulus and response is a fixed proportion.
D) Solomon's law was valid.

Question

Quizplus · Accepted Answer

Weber discovered the concept known as Weber's Law, which states that the just noticeable difference (JND) or the minimum amount of change needed for a sensory stimulus to be perceived is a constant proportion of the original stimulus. This means that the perceivable change depends on the relative rather than the absolute difference.

In the Nineteenth Century, a Psychophysicist Named Ernst Weber Found