Using Knowledge: Top-Down Processing • 61
● FIGURE 3.22 The Forest Has Eyes by Bev Doolittle (1984). Can you fi nd 13 faces in this
picture? E-mail the author at [email protected] for the solution. (Source: “The Forest Has
Eyes” © 1984 Bev Doolittle, courtesy of The Greenwich Workshop, Inc.)
● FIGURE 3.20 Perception of a
number refl ects the law of similarity,
because dots of the same color are
grouped together.
● FIGURE 3.21 This scene illustrates a number of Gestalt principles. See text
for details.
Bruce Goldstein
become perceptually organized into “objects.” Consider, for example, the pattern in
● Figure 3.23. When the blue area just over the mountain is perceived as a bird’s head
facing to the right, the small white cloud becomes the bird’s eye and so becomes per-
ceptually grouped with the head.
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