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Reprinted from Nature, Vol. 300, No. 5892, pp. 523-525, 9 December 1982 Macmillan Journals Ltd., 1982
 

Summary: Reprinted from Nature, Vol. 300, No. 5892, pp. 523-525, 9 December 1982
Macmillan Journals Ltd., 1982
Phenomenal coherence
of moving visual patterns
Edward H. Adelson* & J. Anthony Movshon
Department of Psychology, New York University, New York,
New York 10003, USA
When a moving grating is viewed through an aper-
ture, only motion orthogonal to its bars i s
visible, as motion parallel to the bars causes n o
change in the stimulus. Because there is a family
of physical motions of various directions and
speeds that appear identical, the motion of t h e
grating is ambiguous. In contrast, when t w o
crossed moving gratings are superimposed, t h e
resulting plaid pattern usually moves unambig-
uously and predictably. In certain cases, however,
two gratings do not combine into a s i n g l e
coherent percept, but appear to slide across o n e
another. We have studied the conditions under

  

Source: Adelson, Edward - Computer Science and Artificial Intelligence Laboratory, Department of Brain and Cognitive Science, Massachusetts Institute of Technology (MIT)
Movshon, Joseph Anthony - Center for Neural Science, New York University

 

Collections: Biology and Medicine