Juan's Psychology Professor Is Discussing Color Processing

Multiple Choice

Juan's psychology professor is discussing color processing.The professor shows a solid green square on the projector and asks students to stare at the green square for 30 seconds.When the 30 seconds have passed,the professor then shows a blank white screen.Juan sees a red square that is not actually on the screen.What has the professor demonstrated?

A) opposite colors
B) afterimages
C) transduction
D) intensity