Question

in gustav fechners psychophysics experiments, he found that not all senses have the same sensitivity to changes in stimulus intensity. for example, for our vision, when he doubled the intensity of light being shown to a participant, the person believed the light intensity had increased but to a lesser extent than a doubling. this is referred to as
illusory estimation
response expansion
response compression
magnitude dissonance

Explanation:

In psychophysics, response compression occurs when the perceived change in a stimulus (like light intensity) is less than the actual physical change. Here, doubling the light intensity (physical change) led to a less - than - doubling perceived change, which fits the concept of response compression. Illusory estimation is more about false perception in a different sense (not related to stimulus - response scaling). Response expansion would be when the perceived change is more than the physical change. Magnitude dissonance is not a standard term in this context related to Fechner's work on stimulus - response relationships.

Answer:

response compression