CHAPTER 5 VISION

Question 1

Define Law of specific nerve energies

Answer 1

You would define this term as a particular nerve that establishes a special kind of energy unique to that nerve

Question 2

If someone electrically stimulated the auditory receptors in your ear, what would you perceive?

Answer 2

Because of the term law of specific nerve energies, you would perceive it as sound.

Question 3

If it were possible to flip your entire brain upside down, without breaking any of the connections to sense organs or muscles, what would happen to your perceptions of what you see, hear, and so forth?

Answer 3

Your perception would not change. The way visual or auditory information is coded in the brain does not depend on the physical location within the brain.

Question 4

Define what is the process that occurs as soon as light goes through the eye

Answer 4

The first step is that the light enters through an opening called the pupil, which is the center of the iris. It is focused by the lens which is adjustable and the cornea which is not. This information is projected to the retina. The retina has visual receptors

Question 5

Draw the sequence of events when light enters

Question 6

Define what each of the process do

Question 7

Explain the terms and their importance in the process

Question 8

What is inside the Retina

Answer 8

rods and cones

Question 9

Define all the layers of the retina

Answer 9

The layers include photoreceptors, bipolar cells, horizontal, ganglion, amacrine, axons of ganglion cells

Question 10

What is the importance of the photoreceptors and what do they do

Answer 10

The importance of the photoreceptors is that they basically include rods and cones. Rods are very important because they are able to inform us about the brightness, while cones inform us about the color perception.

Question 11

Define the importance of bipolar cells and what information do they hold?

Question 12

What is the importance of horizontal cells and what do they do? Why is there only a few compared to bipolar

Question 13

Define Amacrine cells and its importance, why is there only a few amounts compared to ganglion

Question 14

Define and explain the importance of Ganglion cells

Question 15

Draw in detail the inside of the retina

Question 16

Explain in detail what the whole retina layers look like and what they do in one paragraph

Question 17

What is the definition of a receptive field

Question 18

define fovea

Answer 18

The fovea is a tiny area in our brain that helps us have a detailed vision of what we are seeing. They have a specific type of ganglion cells called the midget ganglion cells.

Question 19

what is the important of the fovea

Question 20

how is the fovea structured

Question 21

What is the ganglion cell there called

Answer 21

the midget ganglion cell

Question 22

what are the connection in the fovea

Answer 22

each cone in the fovea has a direct route to the brain

Question 23

Draw the inside of the fovea