kynnystason
Kynnystason is a term used in discussions of threshold phenomena within certain scientific and scholarly communities. It refers to the minimum level of input, stimulation, or activity that is necessary for a system to register a detectable change, whether that change is perceptual by a human observer or operational by a machine. The concept is used across fields such as systems theory, cognitive science, and human–computer interaction to compare sensitivity and responsiveness between different setups.
The word appears to be a neologism built from roots meaning threshold in Nordic languages, combined with
In practical use, kynnystason is often discussed in terms of relative measurement rather than absolute values.
See also: threshold concept, perceptual threshold, signal-to-noise ratio, activation threshold.