Question 1

The components in the sense organs that respond to energy are called _______.
A)sensor cells
B)receptor cells
C)transducers
D)effector cells

Accepted Answer

The components in the sense organs that respond to energy are called receptor cells. They are specialized cells that detect and respond to various types of stimuli such as light, sound, touch, taste, and smell. Sensor cells do not specifically respond to energy, transducers convert one form of energy to another, and effector cells are responsible for carrying out responses initiated by other cells (such as muscle cells contracting in response to a stimulus from neurons).

Question 2

If a subject in a perception study were listening to sounds and asked to assign a number that is proportional to each sound's intensity,the method being used to measure the psychophysical function is ________.
A)cross-modality matching
B)category judgment
C)magnitude estimation
D)Weber's Law

Accepted Answer

Magnitude estimation involves directly assigning numerical values to the perceived intensity of a stimulus, which is exactly what is being asked of the subjects in the scenario described. Cross-modality matching involves matching the intensity of stimuli from different modalities, category judgment involves classifying stimuli into different categories, and Weber's Law describes the relationship between the perceived intensity of a stimulus and the background intensity. None of these methods are applicable to the scenario described.

Question 3

"Sensation is to _______ as perception is to _______."
A)psychological;physical
B)gathering;understanding
C)understanding;gathering
D)interpreting;detecting

Accepted Answer

B

Question 4

The wavelength of the light to reach your eyes determines what __________ you see.
A)brightness
B)hue
C)saturation
D)fine detail

Accepted Answer

The wavelength of light determines what hue or color we see. Brightness is determined by the intensity of the light, saturation is the amount of color present, and fine detail is determined by the resolution of the image.

Question 5

Weber's Law is I/I = K;and values for K are: .02 for weight;.08 for brightness;and .03 for length.If a line is 30" long,what is the minimum change in length before one would notice a difference between the two?
A).9"
B).6"
C).3"
D)none of the above

Accepted Answer

The answer of Weber's Law is I/I = K;and values...

Question 6

Our ________ enable us to make sense of the sensations that we are continually experiencing.
A)sensory organs
B)motor abilities
C)perceptual abilities
D)sensory abilities

Accepted Answer

The answer of Our ________ enable us to make sense...

Question 7

The process whereby we receive information from the environment through our receptors is _______.
A)encoding
B)perception
C)sensation
D)transduction

Accepted Answer

Sensation refers to the process of receiving information from the environment through our receptors, such as eyes, ears, skin, etc.

Question 8

Dr.Delmar wants to determine how loud a certain noise must be in order for it to be heard from a distance of 50 feet.Her question involves the concept of:
A)relative magnitude.
B)difference threshold.
C)absolute threshold.
D)just noticeable difference (jnd).

Accepted Answer

The concept of absolute threshold refers to the minimum level of stimulus needed to detect a particular stimulus 50% of the time. In this case, Dr. Delmar wants to know the minimum loudness required to be heard from a distance of 50 feet, which is an example of absolute threshold.

Question 9

The point at which a person can detect a stimulus 50 percent of the time it is presented is called the __________.
A)absolute threshold
B)difference threshold
C)range threshold
D)noticeable threshold

Accepted Answer

The point at which a person can detect a stimulus 50 percent of the time it is presented is called the absolute threshold. This is the minimum amount of stimulation necessary for a person to perceive a particular stimulus.

Question 10

When Ann went to her doctor,he gave her a hearing test.During the test,the doctor struck several tuning forks,each of which vibrated at a distinct pitch,and asked her to choose two tones that sounded almost the same in pitch.The doctor was testing Ann's __________.
A)auditory convergence
B)refractory threshold
C)absolute threshold
D)difference threshold

Accepted Answer

The doctor's test involving choosing two tones that sounded almost the same in pitch is measuring Ann's ability to distinguish differences between sounds, which is the definition of difference threshold. The other options are not applicable to this scenario.

Question 11

The idea that large fibers in the sensory nerves can prevent impulses from reaching the brain and thus prevent the sensation of pain is part of the __________ theory of pain.
A)gate-control
B)primary process
C)free nerve ending
D)volley

Accepted Answer

The gate-control theory of pain proposes that signals from large fibers in sensory nerves can close a "gate" in the spinal cord, preventing pain signals from reaching the brain. This can explain how other sensory input, such as massage or heat, can reduce the sensation of pain. The other answer choices are not relevant to this theory.

Question 12

Sensation is _______.
A)the organization of stimuli to create meaningful patterns
B)the stimulation of the senses
C)the presence of sensory cell activity in the absence of external stimulation
D)the result of activity in the efferent nervous system

Accepted Answer

Sensation is the stimulation of the senses, which occurs when sensory information is detected by sensory receptors.

Question 13

The term "just noticeable difference" is loosely synonymous with __________.
A)separation threshold
B)difference threshold
C)response threshold
D)absolute threshold

Accepted Answer

The term "just noticeable difference" refers to the smallest amount of difference between two stimuli that a person can detect. Therefore, it is commonly known as the difference threshold. It is not the same as the absolute threshold, which is the minimum amount of stimulation required for a person to detect a stimulus. The response threshold refers to the point at which a person will respond to a stimulus, and the separation threshold is not a recognized term in psychology.

Question 14

Which of the following is NOT a measure of threshold?
A)absolute threshold
B)difference threshold
C)just noticeable difference
D)separation threshold

Accepted Answer

Absolute threshold, difference threshold, and just noticeable difference all relate to the minimum level of stimulation needed to detect a sensory input. Separation threshold is not a measure of threshold and is not related to sensory processing.

Question 15

If a subject in a perception study were listening to sounds and asked to assign one of a provided set of numbers to match to each sound's intensity,the method being used to measure the psychophysical function is _________.
A)cross-modality matching
B)category judgment
C)magnitude estimation
D)Weber's Law

Accepted Answer

The answer of If a subject in a perception study...

Question 16

Detecting "environmental stimulation" is one way to define ______.
A)perception
B)feeling
C)sensation
D)awareness

Accepted Answer

Sensation refers to the process of detecting environmental stimulation through sensory organs such as eyes, ears, nose, tongue, and skin. Perception, on the other hand, refers to the way sensory information is interpreted, organized, and experienced by the brain. Feeling and awareness are related to but not synonymous with sensation and perception.

Question 17

The smallest change in stimulation that can be detected 50 percent of the time is called the __________.
A)separation threshold
B)difference threshold
C)response threshold
D)absolute threshold

Accepted Answer

The difference threshold is also known as the just noticeable difference (JND) and represents the minimum amount that two stimuli must differ for an individual to be able to notice the difference 50 percent of the time. The absolute threshold, on the other hand, is the minimum amount of stimulation necessary for an individual to detect a stimulus at least 50 percent of the time. Separation threshold and response threshold are not commonly used terms in the field of sensation and perception.

Question 18

Which of the following statements is true?
A)Only the difference threshold varies from person to person.
B)Only the absolute threshold is constant for all people.
C)Both the difference threshold and the absolute threshold are constant for all people at all times.
D)Both the absolute threshold and the difference threshold vary from person to person over time.

Accepted Answer

The absolute threshold and the difference threshold both vary from person to person and can also vary over time for any given person. The absolute threshold is affected by factors such as fatigue, attention, and expectations, while the difference threshold is affected by factors such as the stimulus intensity and the sensory modality. Therefore, both thresholds can vary among individuals and in different situations.

Question 19

According to Weber's Law,how many grams would have to be added to a 150 gram weight to get a just noticeable difference?
A)1 g
B)3 g
C)8.5 g
D)25 g

Accepted Answer

According to Weber's Law, the just noticeable difference in weight is proportional to the initial weight. The proportionality constant (also known as Weber fraction) depends on the specific sense being tested. For the sense of weight, Weber fraction is typically around 0.02 to 0.05. This means that to get a just noticeable difference, we need to add a weight that is 2-5% of the initial weight. In this case, 2% of 150 g is 3 g, which is the closest answer choice. Therefore, B is the best choice.

Question 20

The minimum intensity of physical stimulation required to produce any sensations at all in a person is the ____________.
A)absolute threshold
B)difference threshold
C)minimum threshold
D)noticeable threshold

Accepted Answer

The minimum intensity of physical stimulation required to produce any sensations at all in a person is known as the absolute threshold. Option A mentions absolute threshold, so it is the correct answer. Option B refers to the smallest difference between two stimuli that is detectable, which is the difference threshold. Option C and D are not accurate terms in psychology.

Quiz 3: C: Sensation and Perception

The components in the sense organs that respond to energy are called _______.

If a subject in a perception study were listening to sounds and asked to assign a number that is proportional to each sound's intensity,the method being used to measure the psychophysical function is ________.

"Sensation is to _ as perception is to _."

The wavelength of the light to reach your eyes determines what __________ you see.

Weber's Law is I/I = K;and values for K are: .02 for weight;.08 for brightness;and .03 for length.If a line is 30" long,what is the minimum change in length before one would notice a difference between the two?

Our ________ enable us to make sense of the sensations that we are continually experiencing.

The process whereby we receive information from the environment through our receptors is _______.

Dr.Delmar wants to determine how loud a certain noise must be in order for it to be heard from a distance of 50 feet.Her question involves the concept of:

The point at which a person can detect a stimulus 50 percent of the time it is presented is called the __________.

When Ann went to her doctor,he gave her a hearing test.During the test,the doctor struck several tuning forks,each of which vibrated at a distinct pitch,and asked her to choose two tones that sounded almost the same in pitch.The doctor was testing Ann's __________.

The idea that large fibers in the sensory nerves can prevent impulses from reaching the brain and thus prevent the sensation of pain is part of the __________ theory of pain.

Sensation is _______.

The term "just noticeable difference" is loosely synonymous with __________.

Which of the following is NOT a measure of threshold?

If a subject in a perception study were listening to sounds and asked to assign one of a provided set of numbers to match to each sound's intensity,the method being used to measure the psychophysical function is _________.

Detecting "environmental stimulation" is one way to define ______.

The smallest change in stimulation that can be detected 50 percent of the time is called the __________.

Which of the following statements is true?

According to Weber's Law,how many grams would have to be added to a 150 gram weight to get a just noticeable difference?

The minimum intensity of physical stimulation required to produce any sensations at all in a person is the ____________.