just noticeable difference

noun

1. psychol another name for difference threshold jnd

Example Sentences

A much-discussed unit of measurement in smell studies is the J.N.D. — the Just Noticeable Difference, or the degree to which chemicals have to differ from one another in order for us to tell them apart.

From New York Times

"Even in a group size of 40, one speaker can raise the group sound level . . . near the just noticeable difference," according to the results.

From Reuters

Food technologists define shelf life not by how long it takes for food to become inedible, but how long it takes for a trained sensory panel to detect a “just noticeable difference” between newly manufactured and stored cans.

From Slate

"Roughly speaking, human eyes can tell apart two colors only if their wavelengths differ at least by a certain amount—the 'just noticeable difference,'" Tria said.

From Scientific American