Weber's Law

Question 1

What is the difference threshold or the just-noticeable difference?

Answer 1

Refers to the minimum difference between two stimuli before one can perceive the difference.

Question 2

What is Weber’s law?

Answer 2

The just-noticeable difference is best explained as the ratio between the change in stimulus vs. it’s original value. Which is Constant.

(The difference in 2 stimuli intensity) / (the original stimuli intensity)

Question 3

What is signal detection theory?

Answer 3

Perception of a stimuli can also be affected by non-sensory factors. Such as experiences, motives and exc.