Question 1

The saturation (colorfulness) of a visual stimulus is related to the _______________ of the light.

Accepted Answer

The answer of The saturation (colorfulness) of a visual stimulus...

Question 2

The amount of light that gets into the eye is controlled by muscles in the _______________.

Accepted Answer

The iris is the part of the eye that contains muscles which adjust the size of the pupil, thereby controlling the amount of light that enters the eye.

Question 3

The complexity of light is related to our perception of _______________.

Accepted Answer

Saturation refers to the intensity or purity of a color, which is related to the complexity of light. A more complex light wave can result in less saturated colors.

Question 4

The ability to focus on some parts of the environment and block out others is referred to as _______________.

Accepted Answer

Selective attention refers to the ability to focus on certain aspects of the environment while ignoring others. Sensory deprivation occurs when there is a lack of exposure to sensory stimuli, while sensory overload occurs when there is an excessive amount of sensory information present. Inattentional blindness occurs when an individual fails to perceive an unexpected stimulus that is in plain sight, due to their attention being focused elsewhere.

Question 5

During a break from his job as a waiter, Bernardo begins to read Hamlet, and is so engrossed in the play that he fails to notice the clattering of dishes all around him. This is an example of _______________.

Accepted Answer

Bernardo's selective attention to the play is causing him to ignore the sensory stimuli of clattering dishes around him.

Question 6

Which of the following physical characteristics of light is related to hue?

Accepted Answer

Hue is related to the wavelength of light. Different wavelengths of light are perceived as different colors.

Question 7

Which of the following physical characteristics of light is related to saturation?

Accepted Answer

Saturation in the context of light and color refers to the purity of the color, which is determined by the complexity of the light wave. A single wavelength of light corresponds to a pure color, or high saturation. As more wavelengths are mixed in, the purity decreases, leading to lower saturation. Thus, complexity of the light wave is directly related to saturation.

Question 8

The wavelength of a light wave refers to:

Accepted Answer

The wavelength of a light wave refers to the distance between two consecutive crests or troughs of the wave. It is measured in units of length, such as meters or nanometers.

Question 9

One difference between rods and cones is that:

Accepted Answer

Rods are more sensitive to light than cones. Cones are responsible for color vision and are most densely packed in the central portion of the retina (fovea), while rods are more evenly distributed throughout the retina and are responsible for vision in low light conditions.

Question 10

Which of the following physical characteristics of light is related to brightness?

Accepted Answer

Intensity is related to the amount of light energy per unit area, which determines how bright or dim the light appears. Purity refers to the color of the light and complexity refers to the presence of multiple wavelengths in the light.

Question 11

Freddy is looking for his girlfriend in a large crowd of people. Because he is so focused on finding her, he fails to notice when a man in a clown costume walks by, despite looking directly at him. This is an example of:

Accepted Answer

This scenario fits the definition of inattentional blindness, which is the failure to perceive a fully-visible, but unexpected stimulus when attention is focused elsewhere. In this case, Freddy's attention is focused on finding his girlfriend, causing him to overlook the man in the clown costume.

Question 12

Failure to consciously perceive something you are looking at because you are not attending to it is called:

Accepted Answer

Inattentional blindness refers to the phenomenon in which people fail to consciously perceive something they are looking at because they are not attending to it. It occurs when attention is focused on one stimulus, causing people to miss other stimuli in the visual field.

Question 13

The _______________ protects the eye and bends incoming light rays toward a lens located behind it.

Accepted Answer

The cornea is a clear, dome-shaped structure that covers the front of the eye. It protects the eye and bends incoming light rays toward a lens located behind it. The pupil is the small, dark window in the center of the iris through which light passes, and the retina is the inner lining at the back of the eye that contains specialized nerve cells that convert light into signals that are sent to the brain. Therefore, the answer is C - cornea.

Question 14

The wavelength of light is related to our perception of _______________.

Accepted Answer

The wavelength of light is directly related to the color or hue that we perceive.

Question 15

The colored part of the eye is called the _______________.

Accepted Answer

The colored part of the eye is the iris. The pupil is the black hole in the center of the iris, while the cornea is the clear outer layer of the eye and the retina is the light-sensitive layer at the back of the eye.

Question 16

When you enter a dim room, the _______________ widens to let more light into the eye.

Accepted Answer

The pupil is the part of the eye that widens or constricts to control the amount of light that enters the eye. In dim light, the pupil will widen to let in more light, which is why it appears larger in low light conditions.

Question 17

The color or hue that we perceive is related to the _______________.

Accepted Answer

The color or hue we perceive is related to the wavelength of light. Different wavelengths of light correspond to different colors in the visible spectrum.

Question 18

When Brett walks out of the theater into the glare of the sun, his _______________ gets smaller to let less light in.

Accepted Answer

The pupil is the part of the eye that contracts or expands depending on the amount of light in the environment. When there is a lot of light, the pupil gets smaller to let less light in.

Question 19

Which of the following statements is true about white light?

Accepted Answer

White light is considered completely unsaturated because it contains all wavelengths of the visible spectrum at equal intensity, meaning it does not favor any particular hue.

Question 20

The intensity of light is related to our perception of _______________.

Accepted Answer

The intensity of light determines the brightness of the light, which is our perception of how much light is present. Hue refers to the color of the light, saturation refers to the purity of the color, and threshold refers to the minimum amount of light required for us to perceive it.

Quiz 6: Sensation and Perception