Physiology Concept

Demonstrations in Physiology

Motorized rotator unit with white base holding a white disk showing a bird outline and red shape. Eight interchangeable white disks with various black geometric patterns (radial lines, dots, spokes, spirals) are displayed in front.
Safety

Persistence of Vision

Demonstrates persistence of vision and the stroboscopic effect using rotating patterned disks illuminated by a strobe light. Students observe how discrete images merge into continuous motion or appear frozen, illustrating …
Orange origami paper square with fold creases on dark background, appearing bright and saturated

Color Perception

Demonstrates that color perception depends on surrounding context, not just wavelength. The same orange paper appears bright orange against black but brown against white, showing that the brain interprets color …
Color reference photograph: checkered mug with Life Savers candy rolls on a floral background
Safety

Land Effect

Two projectors overlay a black-and-white image with a red-filtered image of the same scene. Students perceive blues, greens, and other colors that are physically absent, demonstrating that color vision depends …
Anamorphic photo of a Rubik's cube on paper with pencil-drawn shadow lines, appearing as a realistic 3D cube when viewed from the correct angle

Optical Illusions

Three illusions demonstrate how the brain constructs 3D perception from 2D images: an anamorphic Rubik's cube, a hidden photograph revealed by rotation, and a hollow-face dragon that appears convex. Highlights …