L'optimisme, ce n'est pas le refus de voir ce qui ne va pas, c'est le désir de ne pas s'y attarder. // Donne moi le courage de changer les choses que je peux changer, la sérénité d'accepter celles que je ne peux pas changer, et la sagesse de distinguer entre les deux. (Marc Aurèle) // Don't raise your voice; improve your argument. (Desmond Tutu) // Be the change you want to see in the world. (Gandhi)

6.11.21

The Weber s Law


Weber states that, "the minimum increase of stimulus which will produce a perceptible increase of sensation is proportional to the pre-existent stimulus," while Fechner's law is an inference from Weber's law (with additional assumptions) which states that the intensity of our sensation increases as the logarithm of an increase in energy rather than as rapidly as the increase

An illustration of the Weber–Fechner law. 
On each side, the lower square contains 10 more dots than the upper one. 
However the perception is different
On the left side, the difference between upper and lower square is clearly visible. 
 On the right side, the two squares look almost the same.

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