lecture 12

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What happens to light from objects in the extreme periphery of the visual field at points A and F?

It is detected in both eyes

It is reflected back towards the object

It is blocked by the nose and detected only in the ipsilateral eye (correct)

It is absorbed by the nasal cavity

Where does the superior colliculus contain a complete visual representation?

Both eyes equally

Ipsilateral eye

Contralateral eye (correct)

Nasal hemiretina

How do RGCs from the nasal hemiretina project in terms of direction?

In an orderly manner to the contralateral side of the brain (correct)

They do not project

To the ipsilateral side of the brain

In a random manner

Where do axons from RGCs that are activated by light from the same object converge?

On the same neurons in the superior colliculus Signup and view all the answers

What can drive neurons at point B in the superior colliculus?

Inputs from both eyes Signup and view all the answers

At which locations in the superior colliculus do cells respond to light input only from the contralateral hemiretina?

Points A and F Signup and view all the answers

What happens when light from objects in the extreme periphery of the visual field reaches points A and F?

It is detected only in one eye Signup and view all the answers

What happens to light input from objects in the extreme periphery of the visual field reaching points A and F?

It is blocked by the nose and detected only in the ipsilateral eye. Signup and view all the answers

Where do axons from RGCs in either eye that are activated by light from the same object converge?

Superior colliculus Signup and view all the answers

What type of representation of the visual field does the superior colliculus contain?

Complete contralateral visual representation Signup and view all the answers

At what locations in the superior colliculus do cells respond only to light input from the contralateral hemiretina?

A and F Signup and view all the answers

Which area of the brain receives orderly projections from nasal hemiretina's RGCs?

Contralateral side of the brain Signup and view all the answers

What happens when neurons at point B in the superior colliculus are recorded?

Cells respond to light input from both eyes. Signup and view all the answers

Where do RGCs from the temporal hemiretina project in terms of direction?

Ipsilateral side of the brain Signup and view all the answers

What drives neurons at point B in the superior colliculus?

Light from objects located in the extreme periphery of the visual field. Signup and view all the answers

What happens if neurons at points A or F in the superior colliculus receive light input?

They respond to light input only from the contralateral eye. Signup and view all the answers

What can drive neurons at point B in the superior colliculus?

Light input from objects in extreme periphery of the visual field. Signup and view all the answers

From which locations in the visual field is light blocked by the nose, preventing detection by the contralateral eye?

Peripheral vision Signup and view all the answers

What is the main role of the superior colliculus in relation to visual processing?

Contains a complete visual representation of the contralateral visual field Signup and view all the answers

Which statement accurately describes the pathway followed by RGCs from the nasal hemiretina?

Project to the contralateral side of the brain Signup and view all the answers

At what point in the brain can neurons receive input from both eyes for light originating from the same object?

At point B in the superior colliculus Signup and view all the answers

What happens at locations A and F in the superior colliculus regarding light input?

Cells respond solely to input from the nasal hemiretina Signup and view all the answers

Which location receives input from objects in the extreme periphery that is detected only in one eye?

Nasal hemiretina Signup and view all the answers

What can drive neurons at point B in the superior colliculus?

Input from both eyes responding to light from the same object Signup and view all the answers

Which type of retinal ganglion cells project to the ipsilateral side of the brain?

Temporal hemiretina retinal ganglion cells Signup and view all the answers

Which type of retinal ganglion cells project to the contralateral side of the brain?

Nasal hemiretina retinal ganglion cells Signup and view all the answers

What is the purpose of the orderly point-to-point neuronal projections from the visual brain area to the visual brain area?

To maintain the orderly location of the retinal ganglion cells in the retina Signup and view all the answers

What is the purpose of the visuotopic map in the superior colliculus?

To create a complete representation of the visual field Signup and view all the answers

What happens to light input from objects in the extreme periphery of the visual field reaching points A and F in the superior colliculus?

The light is blocked by the nose Signup and view all the answers

Where do axons from retinal ganglion cells that are activated by light from the same object converge?

In the superior colliculus Signup and view all the answers

What type of retinal ganglion cells respond to light input only from the contralateral hemiretina?

Nasal hemiretina retinal ganglion cells Signup and view all the answers

What can drive neurons at point B in the superior colliculus?

Light input from the contralateral hemiretina Signup and view all the answers

Which area of the brain receives orderly projections from the nasal hemiretina's retinal ganglion cells?

Contralateral side of the brain Signup and view all the answers

What is responsible for maintaining the orderly location of the retinal ganglion cells in the retina?

Orderly point-to-point neuronal projections Signup and view all the answers

What is the purpose of the visuotopic map in the superior colliculus?

To produce an orderly representation of the visual field Signup and view all the answers

lecture 12

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Questions and Answers

What happens to light from objects in the extreme periphery of the visual field at points A and F?

Where does the superior colliculus contain a complete visual representation?

How do RGCs from the nasal hemiretina project in terms of direction?

Where do axons from RGCs that are activated by light from the same object converge?

What can drive neurons at point B in the superior colliculus?

At which locations in the superior colliculus do cells respond to light input only from the contralateral hemiretina?

What happens when light from objects in the extreme periphery of the visual field reaches points A and F?

What happens to light input from objects in the extreme periphery of the visual field reaching points A and F?

Where do axons from RGCs in either eye that are activated by light from the same object converge?

What type of representation of the visual field does the superior colliculus contain?

At what locations in the superior colliculus do cells respond only to light input from the contralateral hemiretina?

Which area of the brain receives orderly projections from nasal hemiretina's RGCs?

What happens when neurons at point B in the superior colliculus are recorded?

Where do RGCs from the temporal hemiretina project in terms of direction?

What drives neurons at point B in the superior colliculus?

What happens if neurons at points A or F in the superior colliculus receive light input?

What can drive neurons at point B in the superior colliculus?

From which locations in the visual field is light blocked by the nose, preventing detection by the contralateral eye?

What is the main role of the superior colliculus in relation to visual processing?

Which statement accurately describes the pathway followed by RGCs from the nasal hemiretina?

At what point in the brain can neurons receive input from both eyes for light originating from the same object?

What happens at locations A and F in the superior colliculus regarding light input?

Which location receives input from objects in the extreme periphery that is detected only in one eye?

What can drive neurons at point B in the superior colliculus?

Which type of retinal ganglion cells project to the ipsilateral side of the brain?

Which type of retinal ganglion cells project to the contralateral side of the brain?

What is the purpose of the orderly point-to-point neuronal projections from the visual brain area to the visual brain area?

What is the purpose of the visuotopic map in the superior colliculus?

What happens to light input from objects in the extreme periphery of the visual field reaching points A and F in the superior colliculus?

Where do axons from retinal ganglion cells that are activated by light from the same object converge?

What type of retinal ganglion cells respond to light input only from the contralateral hemiretina?

What can drive neurons at point B in the superior colliculus?

Which area of the brain receives orderly projections from the nasal hemiretina's retinal ganglion cells?

What is responsible for maintaining the orderly location of the retinal ganglion cells in the retina?

What is the purpose of the visuotopic map in the superior colliculus?

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