Concept of visual sensation.
A direct-realist account of visual sensation is outlined. The explanatory notion of elements in visual sensation (atomic sensations) is reinterpreted, and the suggested interpretation is formally justified by constructing a Boolean algebra for visual sensations. The related notion of sensory levels (visual field vs visual world) is discussed.
D003118:Color Perception; D003210:Concept Formation; D006801:Humans; D008433:Mathematics; D009903:Optical Illusions; D010364:Pattern Recognition, Visual; D014796:Visual Perception