Which of the following statements about the retina's operation across different levels of ambient light is true?
For a given level of ambient light, an on-center ganglion cell respond's proportionately to a small spot of light over an intensity range of about one log unit.
Via adaptational mechanisms, on-center ganglion cells can dynamically encode brightness levels in their on-center over a range of 6 log units of ambient light levels.
Ganglion cells generally do not report absolute light intensities, but rather encode relative intensity differences between center and surround.
Interactions within the outer plexiform layer play an important role in modulating the photic sensitivity of ganglion cells.
All of the above
All of the above
Textbook Reference: Contribution of Retinal Circuits to Light Adaptation, pp. 253-255

Question

09-12-2022
Biology

Answered

Which of the following statements about the retina's operation across different levels of ambient light is true?
For a given level of ambient light, an on-center ganglion cell respond's proportionately to a small spot of light over an intensity range of about one log unit.
Via adaptational mechanisms, on-center ganglion cells can dynamically encode brightness levels in their on-center over a range of 6 log units of ambient light levels.
Ganglion cells generally do not report absolute light intensities, but rather encode relative intensity differences between center and surround.
Interactions within the outer plexiform layer play an important role in modulating the photic sensitivity of ganglion cells.
All of the above
All of the above
Textbook Reference: Contribution of Retinal Circuits to Light Adaptation, pp. 253-255

Answer :

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456Putri 456Putri · Answer 1 · 2022-12-15T21:16:52-05:00

The operating statement for the retina at various light levels above is E. All of the above

The eye is the sense of sight that provides us with visual information. The eye sees an object through light that is captured by the cornea which is then received by the retina.

In the retina there are nerve cells that are sensitive to light. Retinal stem cells function to see dim light, rod cells see bright light and color. Retinal ganglion cells will cover messages from rod cells and cone cells and then send information to the brain via the optic nerve. The brain will respond to the impulses given and translate them into images.

The retina has operations at various light levels which are as follows:

For a given level of ambient light, the central ganglion cells respond proportionally to a small point of light over a range of about one log unit intensity. Through an adaptation mechanism, the ganglion cells in the center can dynamically encode the brightness level in the center in the range of 6 log units of ambient light level. Ganglion cells generally do not report absolute light intensity, but instead encode the difference in relative intensity between center and surroundings. Interactions in the outer plexiform layer play an important role in modulating the photic sensitivity of ganglion cells.

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