A number of intrepid experimenters had themselves injected with drugs that caused a temporary paralysis of the eye muscles. Just as the so-called canceling-out theory would predict, whenever they tried to move their eyes, the world __________.
A) appeared to jump around
B) moved in a direction opposite to their attempted eye movements
C) stayed stationary
D) revolved in a counterclockwise fashion

Question

Quizplus · Accepted Answer

According to the canceling-out theory, when the eye muscles are temporarily paralyzed, any attempt to move the eyes would result in a sensation of the world jumping around. Therefore, option A is the best choice. Option B is incorrect because there is no evidence to suggest that the world moves in a direction opposite to attempted eye movements. Option C is incorrect because the canceling-out theory predicts that there would be a sensation of movement. Option D is incorrect because there is no evidence to suggest that the world would revolve in a counterclockwise fashion.

A Number of Intrepid Experimenters Had Themselves Injected with Drugs