Is a unified model of contrast and constancy possible? Reply to Gilchrist

A simple test of the “anchoring account” of simultaneous contrast

“…In two recent critiques (Maniatis, 2014a(Maniatis, , 2014b I argued that a series of claims addressing the role of perceptual organization in lightness estimation and collected under the rubric of ''anchoring theory'' are too vague, shifting, and mutually contradictory to be testable. Explanations developed for certain effects often clash with those proposed for others and with various principles expressed at various times.…”