In the Experiment of Kellman and Spelke (1983), the Presence

Multiple Choice

In the experiment of Kellman and Spelke (1983) , the presence or absence of congruent movement of the two rod pieces significantly changed the results, suggesting that:

A) Motion can provide a cue for object unity.
B) Motion can provide cues for edge detection.
C) Movement can provide cues for subjective contours.
D) Movement can provide cues for viewpoint invariance.