Omar stares at a line drawing of a cube in which every edge is visible. At first one square face seems to be at the front. After a few seconds the cube seems to turn inside out, and the other square face seems to be at the front.
Explain Omar's experience of the Necker cube.
66 exam-style questions on Oxford AQA IGCSE Psychology 1.2 Perception, covering 1.2.1 Sensation versus perception, 1.2.2 Monocular depth cues, 1.2.3 Binocular depth cues, 1.2.4 Gibson's direct theory of perception, 1.2.5 Motion parallax, 1.2.6 Explanations for visual illusions, 1.2.7 Examples of visual illusions, 1.2.8 Gregory's constructivist theory, 1.2.9 Factors affecting perception, and 1.2.10 Studies of factors affecting perception. Each one has a worked solution and a mark scheme showing where the marks go.