A Coherence-Criterion in Perception

An empirical validation of the concept of coherence.

“…This study combined with a previous one (Rodwan, 1962) which showed that when no correct decision was made Os' responses could still be predicted better than chance demonstrates beyond any reasonable doubt that coherence criteria exist. Another result, which has been equally demonstrated, is that the difference between form and size criteria is in the sign of the weight for the height.…”

“…The concept of coherence in perception (Hake, 1957;Hake, Rodwan, & Weintraub, in press;Rodwan, 1962) asserts that the perceptual system "makes sense" out of the stimulus variation. That is to say, the concept implies that the perceptual system satisfies criteria" .…”

“…The second case, when accuracy is destroyed, has not been tested adequately. Rodwan (1962) has shown that when duration of viewing varies and when judgments vary O's responses can be predicted even when accuracy is zero; the one drawback was that no overall test was performed on enough Os to be able to generalize the results. Rodwan used 100 plane figures as his stimulus set and had Os assign them into one of four categories: large squares, large rectangles, small squares, and small rectangles.…”