Oblique contours sloping at 30° with respect to the horizontal were presented alone, in
combination to form chevrons, or with a vertical line to form arrowhead or Y patterns; they …

Abstract In Experiment I, Ss compared the lengths of lines that varied in absolute and
relative orientation. Their reaction times showed a constant error pattern of which the familiar …

Many experiments have demonstrated that judgments of the visual vertical can be
influenced by nonvertical visual frameworks that surround a test line (see, for example …

The angular function of the rod-and-frame illusion has been attributed to the effects of the
major, virtual axes of the frame. Only one of two possible interpretations of this hypothesis …

Attempted to show that the recognition of a visual-spatial display is achieved by assigning a
structural description to that display. In 2 studies, with a total of 20 right-handed adults, Ss …

Method. The rod and square were identical with those used by Witkin and Asch.'The rod was
39 in. long and 1 in. wide. Each side of the square was 40 in. long and 1 in. wide. The third …

The hypothesis investigated is that the perceived tridimensional orientation of an object is
determined, in monocular vision, by tendencies to make the perceived object as simple as …

In order to compare the recognition of objective (defined in three dimensions) and projective
(on the frontal-parallel plane) shapes, subjects were asked to identify angles (either …

The perception of a three-dimensional (3-D) surface shape can be inferred from a 2-D image
of two intersecting curves. Three experiments are reported in which we examined a possible …

Three experiments investigated anisotropic perception of visual angle outdoors. In
Experiment 1, scales for vertical and horizontal visual angles ranging from 20° to 80° were …