The system of constraints that governs the projections and transformations of... bodies in space must long ago have become internalized as a powerful, though largely unconscious, part of our perceptual machinery.


R.N. Shepard (1978). "The mental image." American Psychologist 33, 125-137. Shepard, 1978, p. 136.


The system of constraints that governs the projections and transformations of... bodies in space must long ago have become internalized as a...

The system of constraints that governs the projections and transformations of... bodies in space must long ago have become internalized as a...

The system of constraints that governs the projections and transformations of... bodies in space must long ago have become internalized as a...

The system of constraints that governs the projections and transformations of... bodies in space must long ago have become internalized as a...