Visual form perception: Task demands and congruence among spatial solutions

Multidimensional scaling techn iques were used to examine the nature of pattern discrimination in the presence of visual noise. These results were compared to a spatial analysis of similarity judgments and of discrimination latencies. The latter two spaces were highly congruent in three dimensions. The noise data were similar to a s previous spatial analysis of discrimination-in-noise, but not congruent with the similarity and latency spaces.