For stimuli such as electric shocks,where the jnd's become smaller with higher intensities,the psychophysical relationship is best expressed by
A) Weber's law.
B) Fechner's law.
C) Stevens' (power) law.
D) the psychophysical law.

Question

Quizplus · Accepted Answer

Stevens' (power) law states that the perceived intensity of a stimulus is proportional to its physical intensity raised to an exponent. This law is applicable for stimuli where the jnd's become smaller with higher intensities, such as electric shocks. Weber's law is applicable for stimuli where the jnd's remain constant regardless of the intensity of the stimulus, while Fechner's law assumes a logarithmic relationship between the physical intensity of a stimulus and its perceived intensity. The psychophysical law is a general term that refers to any mathematical relationship between the physical properties of a stimulus and the psychological experience it produces.

For Stimuli Such as Electric Shocks,where the Jnd's Become Smaller