Question 1

A light source with a wavelength of approximately 700 nm would be perceived as the color

Accepted Answer

A) dark red. 
B) orange. 
C) yellow. 
A) dark red. 
B) orange. 
C) yellow. A

Question 2

The field of view (i.e. ,that portion of the surrounding space that you can see when your eyes are in a given position in their sockets)

Accepted Answer

A) is greater for humans than it is for crocodiles. 
B) is greater for crocodiles than it is for humans. 
C) is about 360 degrees horizontally for humans. 
A) is greater for humans than it is for crocodiles. 
B) is greater for crocodiles than it is for humans. 
C) is about 360 degrees horizontally for humans. B

Question 3

Cone photoreceptor density is greatest

Accepted Answer

A) at the optic disk. 
B) in the fovea. 
C) about 8 mm from the fovea. 
A) at the optic disk. 
B) in the fovea. 
C) about 8 mm from the fovea. B

Question 4

Describe the path of a single photon,from the time it is reflected to the eye,to the moment of transduction.What structures does it pass through,and how is its path altered at each step?

Accepted Answer

A photon would first pass through the co

Question 5

The optic disk is also known as the

Accepted Answer

A) choroid. 
B) pigment epithelium. 
C) blind spot. 
A) choroid. 
B) pigment epithelium. 
C) blind spot.

Question 6

______________ transduce light into neural signals.

Accepted Answer

A) Photoreceptors 
B) Bipolar cells 
C) Retinal ganglion cells 
A) Photoreceptors 
B) Bipolar cells 
C) Retinal ganglion cells

Question 7

The purpose of intraocular pressure is

Accepted Answer

A) to keep the lens and cornea separated. 
B) to enhance the vivid colors of the iris. 
C) to maintain the spherical shape of the eye. 
A) to keep the lens and cornea separated. 
B) to enhance the vivid colors of the iris. 
C) to maintain the spherical shape of the eye.

Question 8

The size of the receptive field for each RGC is

Accepted Answer

A) 100:1. 
B) differs depending upon its position in the retina. 
C) 1000:1. 
A) 100:1. 
B) differs depending upon its position in the retina. 
C) 1000:1.

Question 9

The area of the retina that contains no photoreceptors is the

Accepted Answer

A) fovea. 
B) macula. 
C) optic disk. 
A) fovea. 
B) macula. 
C) optic disk.

Question 10

Myopia is due to while presbyopia is due to .

Accepted Answer

A) an optic axis that is too short;an optic axis that is too long 
B) an optic axis that is too long;an optic axis that is too short 
C) an optic axis that is too short;a lens that is no longer elastic enough to focus near objects 
A) an optic axis that is too short;an optic axis that is too long 
B) an optic axis that is too long;an optic axis that is too short 
C) an optic axis that is too short;a lens that is no longer elastic enough to focus near objects

Question 11

Why is there often a trade-off between acuity and sensitivity in the responses of retinal ganglion cells? Put another way,why do retinal ganglion cells that exhibit high acuity also tend to have relatively low sensitivity to light,and vice versa?

Accepted Answer

The trade-off between acuity and sensiti

Question 12

Photopigment regeneration

Accepted Answer

A) takes longer for cones than for rods. 
B) takes longer for rods than for cones. 
C) takes the same amount of time regardless of photoreceptor type. 
A) takes longer for cones than for rods. 
B) takes longer for rods than for cones. 
C) takes the same amount of time regardless of photoreceptor type.

Question 13

The optic axis includes

Accepted Answer

A) the fovea. 
B) the optic disk. 
C) the zonule fibers. 
A) the fovea. 
B) the optic disk. 
C) the zonule fibers.

Question 14

Compared to animals with eyes on the sides of their heads (such as crocodiles),animals with eyes in front (such as humans)

Accepted Answer

A) are better able to detect the presence of prey. 
B) have a wider range of high-resolution depth perception. 
C) have a much more extensive field of view. 
A) are better able to detect the presence of prey. 
B) have a wider range of high-resolution depth perception. 
C) have a much more extensive field of view.

Question 15

Your text describes the receptive field as it pertains to vision,but it also applies to other senses.Explain how you would map the receptive field for a neuron connected to touch receptors in an animal's back.(Assume you have already inserted an electrode that is registering the neuron's activity. )

Accepted Answer

To map this receptive field,the research

Question 16

The makes up the colored part of the eye while the makes up the white of the eye.

Accepted Answer

A) lens;pupil 
B) cornea;sclera 
C) iris;sclera 
A) lens;pupil 
B) cornea;sclera 
C) iris;sclera

Question 17

Accommodation is the term used for the

Accepted Answer

A) ability of the cornea to refract light. 
B) changing of the size of the pupil under different light conditions. 
C) changing of the shape of the lens to focus light on the retina. 
A) ability of the cornea to refract light. 
B) changing of the size of the pupil under different light conditions. 
C) changing of the shape of the lens to focus light on the retina.

Question 18

Which of the following receive signals from horizontal cells?

Accepted Answer

A) photoreceptors 
B) bipolar cells 
C) amacrine cells 
A) photoreceptors 
B) bipolar cells 
C) amacrine cells

Question 19

Light is described as having a wave-particle duality.Explain one aspect of vision for which you must refer to light as a particle and a different aspect of vision for which you must refer to light as a wave.

Accepted Answer

The process of photoisomerization as it

Question 20

A strong lens

Accepted Answer

A) has a relatively long focal length. 
B) has a relatively short focal length. 
C) has a relatively small angle of refraction. 
A) has a relatively long focal length. 
B) has a relatively short focal length. 
C) has a relatively small angle of refraction.

A light source with a wavelength of approximately 700 nm would be perceived as the color

The field of view (i.e. ,that portion of the surrounding space that you can see when your eyes are in a given position in their sockets)

Cone photoreceptor density is greatest

Describe the path of a single photon,from the time it is reflected to the eye,to the moment of transduction.What structures does it pass through,and how is its path altered at each step?

The optic disk is also known as the

______________ transduce light into neural signals.

The purpose of intraocular pressure is

The size of the receptive field for each RGC is

The area of the retina that contains no photoreceptors is the

Myopia is due to while presbyopia is due to .

Why is there often a trade-off between acuity and sensitivity in the responses of retinal ganglion cells? Put another way,why do retinal ganglion cells that exhibit high acuity also tend to have relatively low sensitivity to light,and vice versa?

Photopigment regeneration

The optic axis includes

Compared to animals with eyes on the sides of their heads (such as crocodiles),animals with eyes in front (such as humans)

Your text describes the receptive field as it pertains to vision,but it also applies to other senses.Explain how you would map the receptive field for a neuron connected to touch receptors in an animal's back.(Assume you have already inserted an electrode that is registering the neuron's activity. )

The makes up the colored part of the eye while the makes up the white of the eye.

Accommodation is the term used for the

Which of the following receive signals from horizontal cells?

Light is described as having a wave-particle duality.Explain one aspect of vision for which you must refer to light as a particle and a different aspect of vision for which you must refer to light as a wave.

A strong lens

Foundations

The Visual Brain

Recognizing Visual Objects

Perceiving Color

Perceiving Depth

Perceiving Motion and Perception for Action

Attention and Awareness

Sound and the Ears

The Auditory Brain and Perceiving Auditory Scenes

Perceiving Speech and Music

The Body Senses

The Chemical Senses:

Filters

Exam 2: Light and the Eyes

A light source with a wavelength of approximately 700 nm would be perceived as the color

The field of view (i.e. ,that portion of the surrounding space that you can see when your eyes are in a given position in their sockets)

Cone photoreceptor density is greatest

Describe the path of a single photon,from the time it is reflected to the eye,to the moment of transduction.What structures does it pass through,and how is its path altered at each step?

The optic disk is also known as the

______________ transduce light into neural signals.

The purpose of intraocular pressure is

The size of the receptive field for each RGC is

The area of the retina that contains no photoreceptors is the

Myopia is due to while presbyopia is due to .

Why is there often a trade-off between acuity and sensitivity in the responses of retinal ganglion cells? Put another way,why do retinal ganglion cells that exhibit high acuity also tend to have relatively low sensitivity to light,and vice versa?

Photopigment regeneration

The optic axis includes

Compared to animals with eyes on the sides of their heads (such as crocodiles),animals with eyes in front (such as humans)

The makes up the colored part of the eye while the makes up the white of the eye.

Accommodation is the term used for the

Which of the following receive signals from horizontal cells?

Light is described as having a wave-particle duality.Explain one aspect of vision for which you must refer to light as a particle and a different aspect of vision for which you must refer to light as a wave.

A strong lens

Foundations

The Visual Brain

Recognizing Visual Objects

Perceiving Color

Perceiving Depth

Perceiving Motion and Perception for Action

Attention and Awareness

Sound and the Ears

The Auditory Brain and Perceiving Auditory Scenes

Perceiving Speech and Music

The Body Senses

The Chemical Senses:

Filters