Exam 8: Perceiving Motion

In addition to describing movement detection in terms of the environment, researchers have proposed different ways to detect movement from a physiological perspective. The Reichardt detector is one solution. Which of the following is the greatest weakness of the Reichardt detector?

Real-motion neurons found in the monkey cortex fire when _____ moves, but do not fire when _____ moves.

Kourtzi and Kanwisher (2000) used fMRI's to show that "implied motion" stimuli cause

The aperture problem is solved by the pooling of responses of a number of V1 neurons. Physiological evidence suggests that this pooling occurs in the ____, a nucleus in the _____stream.

In an apparent motion demonstration, two pictures are used. In one picture a fist is located behind a board; in the other, the fist is located in front of the board at the same height. When rapidly alternating between these pictures, what apparent motion would result?

As Dore runs through the park, the flow signals that he is moving and not the environment. Gibson calls this