Question 1

A subliminal message is one that is presented

Accepted Answer

A subliminal message is presented below one's absolute threshold for conscious awareness. It is typically presented in a way that the individual receiving the message is not consciously aware of it.

Question 2

Priming refers to the activation of certain

Accepted Answer

Priming refers to the activation of associations, which are mental connections between concepts or ideas. Priming can lead to the activation or retrieval of related information, making it more accessible in our minds. This can occur through various stimuli or experiences, such as words, images, or events. Once these associations are primed, they can affect our thoughts, feelings, and behaviors.

Question 3

A perceptual set is a

Accepted Answer

A perceptual set is a mental predisposition that influences what we perceive. It can be shaped by our experiences, expectations, motivations, emotions, and cultural background. It can lead us to selectively attend to certain aspects of the environment, interpret ambiguous stimuli in a certain way, or make snap judgments based on past knowledge. Therefore, a perceptual set can affect how we see, hear, touch, taste, and smell things, and can sometimes lead to perceptual errors or illusions.

Question 4

Giulio's bag of marbles is twice as heavy as Jim's. If it takes 5 extra marbles to make Jim's bag feel heavier, it will take 10 extra marbles to make Giulio's bag feel heavier. This best illustrates

Accepted Answer

This scenario demonstrates Weber's law, which states that the just-noticeable difference between two stimuli is a constant proportion of the original stimulus. In this case, the proportion between the amount of extra marbles needed to make Jim's bag feel heavier versus Giulio's bag feel heavier is the same, indicating that the weight difference between their bags is constant proportionally.

Question 5

Which theory emphasizes that personal expectations and motivations influence the level of absolute thresholds?

Accepted Answer

Signal detection theory emphasizes that personal expectations and motivations influence the level of absolute thresholds. It suggests that an individual's ability to detect a stimulus depends on not only the strength of the stimulus but also their psychological state and experience.

Question 6

Which of the following strategies best illustrates the use of subliminal stimulation?

Accepted Answer

Subliminal stimulation involves presenting a stimulus below the threshold of conscious awareness in order to influence behavior or perception. In option A, the verbal warning against shoplifting is presented at a level that is imperceptible to most people, making it a good example of subliminal stimulation. Options B, C, and D all involve stimuli that are clearly perceptible and therefore do not fit the definition of subliminal stimulation.

Question 7

Subliminally presented stimuli

Accepted Answer

Subliminally presented stimuli can sometimes be consciously perceived. While subliminal stimuli are below the absolute threshold for conscious awareness, factors such as attention and individual differences can sometimes allow for conscious perception of subliminal stimuli.

Question 8

Lonely, anxious people at speed-dating events respond with a ________ threshold, and thus tend to be ________ in reaching out to potential dates.

Accepted Answer

The answer of Lonely, anxious people at speed-dating events respond...

Question 9

Jennifer can tune her guitar more effectively than Maria because Jennifer is better at detecting whether specific strings are playing too sharp or too flat. With respect to tone sensitivity, Maria apparently has a ________ threshold than does Jennifer.

Accepted Answer

The answer of Jennifer can tune her guitar more effectively...

Question 10

Experiments evaluating the impact of subliminal self-help recordings for improving memory indicated that they

Accepted Answer

Experiments evaluating the impact of subliminal self-help recordings for improving memory have found that they did not help more than a placebo, indicating that any reported improvements were likely due to a placebo effect rather than a genuine impact of the recordings. The other options are not supported by research on subliminal self-help recordings for memory improvement.

Question 11

Sensory adaptation refers to

Accepted Answer

Sensory adaptation refers to diminishing sensitivity to an unchanging stimulus. This occurs when our sensory receptors become less responsive to constant stimulation.

Question 12

The constant quivering movements of our eyes enable us to

Accepted Answer

The constant quivering movements, known as microsaccades, help prevent sensory adaptation by ensuring that the photoreceptors in the retina are continuously stimulated by new visual information.

Question 13

In experiments, an image is quickly flashed and then replaced by a masking stimulus that inhibits conscious perception of the original image. In these experiments, the researchers are studying the effects of

Accepted Answer

Priming is a phenomenon in which exposure to a stimulus affects a person's response to a subsequent stimulus. In the case of these experiments, the original image that is flashed very quickly serves as a priming stimulus, while the masking stimulus that follows inhibits conscious perception of the original image. Researchers study the effects of priming by measuring the degree to which the original image influences subsequent behaviors, such as responding more quickly or accurately to a related stimulus. Accommodation and tinnitus are not related to this type of experiment, while blindsight refers to a phenomenon where individuals display some level of visual awareness despite damage to certain parts of the visual cortex, which is not relevant to this scenario.

Question 14

The principle that two stimuli must differ by a constant minimum proportion for their difference to be perceived is known as

Accepted Answer

Weber's law states that the difference threshold, or the minimum difference between two stimuli that can be detected, is proportional to the magnitude of the stimuli. This means that for heavier weights or brighter lights, the difference threshold will be larger than for lighter weights or dimmer lights. This principle is also known as the just noticeable difference (JND).

Question 15

After learning that her new college roommate had experienced several episodes of depression during her high school years, Erin incorrectly perceived her roommate's laughter as artificial and phony. This best illustrates the impact of

Accepted Answer

Perceptual set refers to a mental predisposition to perceive something in a particular way. Erin's prior knowledge about her roommate's history with depression may have influenced her perception of her roommate's behavior, causing her to perceive her laughter as phony.

Question 16

Which theory would suggest that watching a horror movie late at night could lower your absolute threshold for sound as you subsequently tried to fall asleep?

Accepted Answer

The signal detection theory suggests that individuals have a threshold for detecting a stimulus, which can be affected by factors such as motivation, expectations, and fatigue. Watching a horror movie late at night could potentially activate this theory by increasing an individual's arousal and causing them to be more aware of potential noises, thus lowering their absolute threshold for sound while trying to fall asleep.

Question 17

After a photo of nude man or woman was flashed and immediately masked before being perceived, people's attention was unconsciously drawn to images in a way that reflected their

Accepted Answer

The study suggests that people's attention was influenced by their sexual orientation, as the images were processed unconsciously and drew attention based on individual preferences related to sexual orientation.

Question 18

After listening to your high-volume car stereo for 15 minutes, you fail to realize how loudly the music is blasting. This best illustrates

Accepted Answer

Sensory adaptation refers to the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. When you listen to high-volume music for a prolonged period, your sensory receptors adapt to the constant stimulation and start to desensitize to the intensity of the music, leading to a decreased perception of the loudness. This is why you may not realize how loud the music is after listening for a while.

Question 19

The minimum difference between two stimuli required for detection 50 percent of the time is called

Accepted Answer

The just noticeable difference (JND) is the smallest difference between two stimuli that can be detected 50% of the time. The absolute threshold refers to the minimum intensity of a stimulus required for it to be detected. Accommodation refers to the ability of the eye to focus on objects at different distances, and perceptual set refers to the tendency for expectations and prior experiences to influence our perceptions.

Question 20

People's response to subliminal priming indicates that

Accepted Answer

People's response to subliminal priming indicates that they are capable of processing information without any conscious awareness of doing so. This means that subliminal stimuli can have an effect on people's behavior and thoughts without their conscious knowledge or understanding.

Quiz 17: Basic Principles of Sensation and Perception