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PNB 2XB3 - Central Vision Questions and Answers | Latest Update 2024/2025 $9.99   Add to cart

Exam (elaborations)

PNB 2XB3 - Central Vision Questions and Answers | Latest Update 2024/2025

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  • Course
  • PNB 2XB3
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  • PNB 2XB3

For an on-center ganglion cell, what causes it to maximally fire? ~~> light in the center and darkness in the surround What is the spontaneous level of activity or baseline for a ganglion cell? ~~> when the entire field is in the dark color opponency ~~> the center and surround con...

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  • September 20, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • PNB 2XB3
  • PNB 2XB3
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1 | P a g e | © copyright 2024/2025 | Grade A+


PNB 2XB3 - Central Vision Questions
and Answers | Latest Update
2024/2025
For an on-center ganglion cell, what causes it to maximally fire?

✓ ~~> light in the center and darkness in the surround



What is the spontaneous level of activity or baseline for a ganglion cell?

✓ ~~> when the entire field is in the dark



color opponency

✓ ~~> the center and surround cones can be of different types

(red,green,blue...)



fixating the eyes on an object

✓ ~~> turning the eyes so that the image falls on the fovea of each eye



monocular vision portion of the visual field

✓ ~~> areas that only one eye can see



binocular visual field

✓ ~~> a region of the visual field seen by both eyes



a view in the left VISUAL FIELD is sent to which side of the occipital lobe?



Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+

✓ ~~> the right side



macula

✓ ~~> center of vision



explain the retinotopic/visuotopic map of the primary visual cortex

✓ ~~> the macula takes up a disproportionally large space in the cortex,

compared to the peripheral field



consists of the axons from both the nasal and temporal retina of one eye

✓ ~~> optic nerve



the nasal pathways decussate through the

✓ ~~> optic chiasm



what axons are in each optic tract?

✓ ~~> temporal retina axons of the ipsilateral eye, and the nasal retina

axons of the contralateral eye



contralaterality in the visual system can be seen starting in the

✓ ~~> optic tract



pretectum



Master01 | September, 2024/2025 | Latest update

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