ReviewQuestionsWeek8

ReviewQuestionsWeek8 - BIPN 142 Review Questions - Week 8...

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1 BIPN 142 Review Questions - Week 8 (by Jannon Fuchs, to accompany Neuroscience , Purves et al ., Fourth Edition, Sinauer) Chapter 20: Eye Movements and Sensory Motor Integration 1. What do you suppose your visual perception would be like without any eye movements to achieve foveation, prevent stabilized retinal images, and carry out smooth pursuit and vergence movements? 2. What three cranial nerves innervate the extraocular muscles? Which brainstem nuclei contain their cell bodies of origin? What do these cranial nerves do in addition to controlling eye movements? 3. Usually you do not see the blood vessels in your retina. Why not? 4. What is meant by the statement that saccades are ballistic? 5. How do neurons in the oculomotor nuclei signal amplitude versus position of an eye movement? 6. You are about to drink some coffee when an insect lands on the rim of your cup. What three reflexive visual responses do you make? (Hint: think of the near reflex triad.) 7. Where are the horizontal and vertical gaze centers? How do they help the superior colliculus
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ReviewQuestionsWeek8 - BIPN 142 Review Questions - Week 8...

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