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Fechner's law

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Fechner's law
a natural law relating the frequency of discharge from a nerve receptor to the strength of the stimulus. This law states that the response, or sensation, is linearly related to the logarithm of the stimulus.
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Fechner's law is in accordance with this principle, asserting that each increase in stimulus intensity requires a larger increment for the perception of a JND (Cook, 1967).
Extracting meaning from sound: nomic mappings, everyday listening, ... by Coward, Sean W.; Stevens, Catherine J. / The Psychological Record
Dally, parents and clinicians (and teachers, therapists and grandparents) unknowingly apply Weber's Ratio, Fechner's Law and Steven's Magnitude Estimation and decide whether what they see is worth one, two or three eyebrow raises.
On noticing a noticeable difference. (editor's desk) by Rader, Rick / The Exceptional Parent
 
 
 
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