Schwellenstufe
Schwellenstufe is a German term used in science and engineering to denote a threshold level or transitional stage at which a system begins to respond or changes its regime. The word comes from Schwelle (threshold) and Stufe (stage or level). There is no single universal definition; the exact meaning depends on context and criteria used to declare a response.
In sensory physiology and psychophysics, the Schwellenstufe refers to the stimulus intensity at which a perception
Because the concept depends on chosen criteria, the Schwellenstufe is typically determined experimentally or by predefined