Podcast
Questions and Answers
Which of the following concepts refers to the diminished sensitivity to a stimulus that occurs due to constant exposure to that stimulus?
Which of the following concepts refers to the diminished sensitivity to a stimulus that occurs due to constant exposure to that stimulus?
Which of the following is the process of detecting environmental stimuli and converting them into signals that can be detected by the nervous system?
Which of the following is the process of detecting environmental stimuli and converting them into signals that can be detected by the nervous system?
Which of the following is the best definition for absolute threshold?
Which of the following is the best definition for absolute threshold?
Which of the following best illustrates the most predictable effect of schemas on perception?
Which of the following best illustrates the most predictable effect of schemas on perception?
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Orville is talking with his friends at a cafeteria table when suddenly he is distracted by hearing his name at a neighboring table. Orville's shift of attention most clearly illustrates which psychological concept?
Orville is talking with his friends at a cafeteria table when suddenly he is distracted by hearing his name at a neighboring table. Orville's shift of attention most clearly illustrates which psychological concept?
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Helena did not recognize her English teacher when she unexpectedly saw him while traveling in Paris, even though she knew him well back in the classroom. The fact that Helena can recognize her teacher back home more easily than in Paris best demonstrates what concept?
Helena did not recognize her English teacher when she unexpectedly saw him while traveling in Paris, even though she knew him well back in the classroom. The fact that Helena can recognize her teacher back home more easily than in Paris best demonstrates what concept?
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Which of the following is the correct order of the eye-to-brain pathway of vision?
Which of the following is the correct order of the eye-to-brain pathway of vision?
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Which of the following scenarios best illustrates the opponent-process theory of color vision?
Which of the following scenarios best illustrates the opponent-process theory of color vision?
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Which of the following scenarios is the best example of synesthesia?
Which of the following scenarios is the best example of synesthesia?
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Kimmie stood on the sidewalk rather than crossing the street because she saw that the approaching car was quite close to her. Which of the following concepts is best illustrated in this example?
Kimmie stood on the sidewalk rather than crossing the street because she saw that the approaching car was quite close to her. Which of the following concepts is best illustrated in this example?
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Which of the following examples best illustrates the concept of interposition?
Which of the following examples best illustrates the concept of interposition?
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Bryan perceived a duck instead of other animals when viewing an ambiguous image because he watched a documentary about ducks the previous night. Which of the following best explains why Bryan perceived a duck?
Bryan perceived a duck instead of other animals when viewing an ambiguous image because he watched a documentary about ducks the previous night. Which of the following best explains why Bryan perceived a duck?
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Denise has damaged her auditory nerve and now has difficulty understanding what people are saying. Which of the following descriptions explains how that damage impairs her hearing?
Denise has damaged her auditory nerve and now has difficulty understanding what people are saying. Which of the following descriptions explains how that damage impairs her hearing?
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Tracey was in pain from an ear infection, which her doctor said was in her inner ear. Which of the following is the most likely location of the infection?
Tracey was in pain from an ear infection, which her doctor said was in her inner ear. Which of the following is the most likely location of the infection?
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Marlene had an infection that led to deafness in her left ear. Which of the following will be the most likely impact of losing her hearing in her left ear?
Marlene had an infection that led to deafness in her left ear. Which of the following will be the most likely impact of losing her hearing in her left ear?
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In a study on taste, what would researchers need to do to test participants' ability to distinguish umami from similar sensations?
In a study on taste, what would researchers need to do to test participants' ability to distinguish umami from similar sensations?
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Dr. Ramen recruited 100 adults to participate in her study. The taste buds of each participant were measured, and the participants tasted a number of foods. She found there was a relationship between the size of a participant's taste buds and the number of foods that a participant could taste. What research method did Dr. Ramen use, and what was she most likely studying?
Dr. Ramen recruited 100 adults to participate in her study. The taste buds of each participant were measured, and the participants tasted a number of foods. She found there was a relationship between the size of a participant's taste buds and the number of foods that a participant could taste. What research method did Dr. Ramen use, and what was she most likely studying?
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A researcher wants to study the human sense of taste over a lifespan. The researcher has a group of participants taste foods that are salty, bitter, sweet, sour, and umami. Which study would best allow the researcher to test the sensation of taste as people age, and what is the likely outcome?
A researcher wants to study the human sense of taste over a lifespan. The researcher has a group of participants taste foods that are salty, bitter, sweet, sour, and umami. Which study would best allow the researcher to test the sensation of taste as people age, and what is the likely outcome?
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Human tactile sense is actually a mix of which of the following distinct skin senses?
Human tactile sense is actually a mix of which of the following distinct skin senses?
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According to the gate control theory of pain, which of the following contains a neurological gate that controls the transmission of pain messages to the brain?
According to the gate control theory of pain, which of the following contains a neurological gate that controls the transmission of pain messages to the brain?
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Which of the following anatomical structures is involved in the vestibular sense?
Which of the following anatomical structures is involved in the vestibular sense?
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Study Notes
Sensory Processes and Perception
- Sensory Adaptation: Refers to the reduced sensitivity to a constant stimulus, allowing individuals to focus on changes in their environment rather than constant factors.
- Sensation vs. Perception: Sensation is the initial detection of environmental stimuli, converting signals for the nervous system, while perception involves interpreting those signals.
Visual Perception
- Absolute Threshold: The minimum intensity of a stimulus detectable 50% of the time by an individual, crucial in determining sensitivity.
- Schemas and Perception: Schemas influence how we interpret stimuli. For instance, recognizing familiar objects or concepts can shape perception, such as a five-pointed star obscured by another shape.
- Opponent-Process Theory: In this theory of color vision, prolonged exposure to one color results in an afterimage of its opposing color, demonstrating how color perception can be influenced by previous visual stimuli.
Attention and Cognitive Processing
- Cocktail Party Phenomenon: Refers to the ability to focus attention on a specific conversation (e.g., hearing one's name) despite background noise, highlighting selective attention in social environments.
- Perceptual Set: This concept involves how expectations and previous experiences shape our perception of stimuli, leading to differences in recognition, such as a familiar face seen in an unfamiliar context.
Sound and Auditory Processing
- Auditory Nerve Damage: Damage in this area leads to difficulties in sound transmission to the brain, impacting understanding and auditory perception.
- Inner Ear Infections: Often located in the cochlea, which is linked to issues with hearing and processing sounds.
- Directional Hearing: Losing hearing in one ear impairs the ability to localize sound sources, emphasizing the importance of binaural hearing for spatial awareness.
Taste and Taste Sensitivity
- Umami Sensation: Researchers can test taste sensitivity, especially umami, using distinct taste sources (like broth) while comparing responses to neutral stimuli.
- Supertasters: Individuals with a higher number of taste buds may have increased sensitivity to flavors, affirming the correlational relationship between taste bud density and taste perception.
Aging and Sensory Perception
- Taste Sensitivity Over Time: A longitudinal study shows age-related declines in taste sensitivity and the number of taste buds, suggesting a physiological change as people grow older.
Tactile and Pain Perception
- Tactile Sense Components: The tactile sense comprises various skin sensations, including pressure, warmth, cold, and pain, highlighting the complexity of tactile perception.
- Gate Control Theory of Pain: This theory posits that the spinal cord contains neurological gates managing the flow of pain signals to the brain, influencing how we perceive and respond to pain.
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