In reference to this figure, we tend to see an illusory contour of a triangle created by the figure.What is true about this figure?
A)There appears to be a series of blue contours, which are not actually present.
B)There appears to be a white triangle, which is brighter than the white background.
C)The white figure appears to move, even though that is not possible.
D)The blue figures appear to be concave, even though they are convex.

Question

In reference to this figure, we tend to see an illusory contour of a triangle created by the figure.What is true about this figure? 
A)There appears to be a series of blue contours, which are not actually present. 
B)There appears to be a white triangle, which is brighter than the white background. 
C)The white figure appears to move, even though that is not possible. 
D)The blue figures appear to be concave, even though they are convex.

Quizplus · Accepted Answer

The figure creates an illusory contour of a triangle that appears to be brighter than the white background, indicating that the white triangle is brighter than its surroundings. This is due to the perception of contrast and the brain's tendency to fill in missing information. The other choices are not applicable to this figure.

In Reference to This Figure, We Tend to See an Illusory