Podcast
Questions and Answers
Which of the following is true regarding the absolute threshold?
Which of the following is true regarding the absolute threshold?
If you can just notice the difference between 10 and 11-pound weights, which of the following weights could you differentiate from a 100-pound weight?
If you can just notice the difference between 10 and 11-pound weights, which of the following weights could you differentiate from a 100-pound weight?
There is no basis for prediction.
What is a decrease in sensory responsiveness accompanying an unchanging stimulus called?
What is a decrease in sensory responsiveness accompanying an unchanging stimulus called?
sensory adaptation
Which of the following is an example of sensory adaptation?
Which of the following is an example of sensory adaptation?
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What does Weber's Law state about just noticeable differences (jnd)?
What does Weber's Law state about just noticeable differences (jnd)?
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What is the term for the ability to detect a candle flame from a distance of 30 miles on a dark, clear night?
What is the term for the ability to detect a candle flame from a distance of 30 miles on a dark, clear night?
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In shopping for a new stereo, you discover that you cannot differentiate between the sounds of models X and Y. The difference between X and Y is below your ______.
In shopping for a new stereo, you discover that you cannot differentiate between the sounds of models X and Y. The difference between X and Y is below your ______.
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Sensation is to _____________ as perception is to __________.
Sensation is to _____________ as perception is to __________.
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Why does Jess run her fingertips over the cloth's surface when admiring its texture?
Why does Jess run her fingertips over the cloth's surface when admiring its texture?
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Superman's eyes used __________, while his brain used __________.
Superman's eyes used __________, while his brain used __________.
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What are the raw data of experience based on the activation of certain receptors located in the various sensory organs?
What are the raw data of experience based on the activation of certain receptors located in the various sensory organs?
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What is the point at which a person can detect a stimulus 50 percent of the time it is presented called?
What is the point at which a person can detect a stimulus 50 percent of the time it is presented called?
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The lowest stimulus intensity required for detection is the ________ and the smallest noticeable difference between a standard stimulus intensity and another stimulus value is the ________.
The lowest stimulus intensity required for detection is the ________ and the smallest noticeable difference between a standard stimulus intensity and another stimulus value is the ________.
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What are messages that can be sent to consumers, prompting them to buy a product without their being aware of receiving such messages called?
What are messages that can be sent to consumers, prompting them to buy a product without their being aware of receiving such messages called?
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Study Notes
Sensation and Perception Concepts
- Absolute Threshold: The minimum stimulation required to detect a stimulus 50% of the time; it varies somewhat.
- Difference Threshold (Just Noticeable Difference - jnd): The smallest detectable difference between two stimuli; it is a constant proportion as stated by Weber's Law.
- Sensory Adaptation: A decrease in sensitivity to a constant stimulus over time; example includes perceiving cold water warmer after initial exposure.
- Sensation vs. Perception: Sensation involves detecting stimuli, while perception is about recognizing and interpreting them.
Examples and Applications
- Example of Sensory Adaptation: Finding the water in a pool warmer after staying in for a while illustrates sensory adaptation.
- Weber's Law: jnd is always a constant proportion, which means that as stimulus intensity increases, so does the absolute difference required for a person to notice a change.
- Sensation as Raw Data: Sensations serve as the raw data gathered from sensory organs, which must be interpreted to create perceptions.
Thresholds in Sensory Experience
- Absolute Threshold vs. Difference Threshold: The absolute threshold refers to the point where a stimulus can be detected, while the difference threshold refers to the minimum difference needed to notice a change.
- Sensory Receptors: Sensations are influenced by the activation of specific receptors in sensory organs.
Important Sensory Phenomena
- Signal Detection: Refers to the ability to discern between information-bearing patterns (stimuli) and random noise; critical to understanding sensory processing.
- Perceptual Processing: Involves bottom-up processing (data-driven) and top-down processing (concept-driven) to interpret sensory information effectively.
Psychological and Marketing Perspectives
- Subliminal Messages: Believed to be unnoticed cues that can influence consumer behavior and decision-making.
- Sensations in Decision Making: Awareness of sensory input can affect choices and reactions, critical in areas like marketing and behavioral psychology.
Practical Considerations
- Real-World Applications: Understanding thresholds and sensory adaptation can inform practices in design, marketing, and ergonomics to enhance user experience and product interaction.
Studying That Suits You
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Description
Test your knowledge of sensation and perception with these flashcards. The quiz covers key concepts such as the absolute threshold and how stimuli are detected. Perfect for psychology students looking to reinforce their understanding of this crucial topic.
