Exam 8: Perceiving Motion

 Mira gently pushes on her eye with her finger. Because her eye muscles push against the force of her finger, which keeps the image in the same location, she perceives the visual scene _____.

Describe the major components and principle of the corollary discharge theory. (b) Describe two behavioral demonstrations that support the corollary discharge theory and specify how the theory predicts the result.

 Newsome, Britten, and Movshon found that as the coherence between the dots' direction of movement increased, _____.

 The patient L.M. (studied by Zihl, et al.) had cortical lesions that affected her motion perception. What was her condition called

 Percy is injected with a drug that paralyzes his eye muscles. When he is instructed to try to move his eye when looking a stationary scene, his brain is able to send a signal to his eye muscles but he is unable to move his eyes. As a result, he perceives _____.

 Brian looks at the moon and some clouds at night. He perceives the moon moving through the clouds. This is an example of _____.

 Discuss three types of illusory motion and provide an example of each.

 Which of the following stimuli is most likely to show the greatest representational momentum

 Freyd (1983) presented two pictures sequentially that implied motion, such as a person jumping off a low wall. In the "same" condition, the second picture was identical to the first; in the "time-forward" condition, the second picture was the jumper closer to the ground; and in the "time-backward condition, the jumper was further from the ground. The observer's task was to respond whether or not the two pictures were the "same" or "different." The response time was longest for _____.

 The vertigo case of R.W. not only provided evidence for the corollary discharge theory, it revealed the importance of the _____ in producing CDS.

 _____ is a technique that has been used to temporarily disturb brain area functioning in humans.

 Larsen et al. (2006) used fMRI to study the responses of the brain to real and apparent motion and found that _____.

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

What does Gibson mean by the "optic array" (b) Specify how changes in the optic array affect movement perception.

 Movies are to _____ as the waterfall illusion is to _____.

 What is the aperture problem How does the visual system "solve" this problem?

 The perceptual grouping of lights in biological motion has been shown physiologically to occur in the _____ area of the cortex.

 Describe the findings of Kourtzi and Kanwisher's (2000) fMRI study of implied motion.

 The _____ is demonstrated when you look through a circle you make with your fingers, and move a pencil either horizontally or diagonally behind your fingers.

 Which type of signal is sent from the brain to the eye muscles