Program Features	Animations	Illustrations	Inter-Activities	Scans and Images
Main Menu	Embryo Development	Hypothalamic Nuclear Zones	Drag/Drop Quiz	MRI Scan of Tumor
Master Index	Saltatory Conduction	Neural Tube	Tower of Hanoi Puzzle	PET Scan of Depressed Patient
Navigation Buttons	Patellar Reflex	Medial View of Major Lobes	Spectral Sensitivities	Phineas Gage Death Mask
Text and Bookmarks	Pavlov's Dog	Cerebellar Peduncle	Opponent Process Theory	Histology Equipment
Glossary	Associative Learning	Hypothalamo- Pituitary Connections	Brightness Contrast Effect	Histological Section

Negative color after effect. This phenomenon demonstrates the opponent process theory of color vision. Place your pointer on the central dot . Stare at the dot and the pointer for 60 seconds, then click your mouse while still staring at the dot and pointer.