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Questions and Answers
What are the key concepts of the Information Processing Model outlined in the text?
What are the key concepts of the Information Processing Model outlined in the text?
Who are credited with developing the Information Processing Model?
Who are credited with developing the Information Processing Model?
What does the term 'Input' refer to as it relates to perception?
What does the term 'Input' refer to as it relates to perception?
What is the primary focus of cognitive psychology in this context?
What is the primary focus of cognitive psychology in this context?
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Which of the following is NOT explicitly stated in the document as a topic that will be covered in the course?
Which of the following is NOT explicitly stated in the document as a topic that will be covered in the course?
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What was the main result of Sperling's (1960) replication of the standard perceptual span experiment?
What was the main result of Sperling's (1960) replication of the standard perceptual span experiment?
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What did Sperling's subjects report regarding their experience with the stimuli in his experiment?
What did Sperling's subjects report regarding their experience with the stimuli in his experiment?
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What does the term "whole report" refer to in Sperling's experiment?
What does the term "whole report" refer to in Sperling's experiment?
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What was the key question addressed in Sperling's partial report experiment?
What was the key question addressed in Sperling's partial report experiment?
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What was the novel contribution of Sperling's research based on the content provided?
What was the novel contribution of Sperling's research based on the content provided?
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What is the process of interpreting and understanding sensory information called?
What is the process of interpreting and understanding sensory information called?
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What are the two types of photoreceptors in the eye, and what are their respective functions?
What are the two types of photoreceptors in the eye, and what are their respective functions?
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What is the pathway of visual information processing from the eye to the brain?
What is the pathway of visual information processing from the eye to the brain?
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What is a saccade?
What is a saccade?
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What is the approximate duration of a typical saccade?
What is the approximate duration of a typical saccade?
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What is the approximate duration of a typical fixation?
What is the approximate duration of a typical fixation?
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What is the meaning of "perceptual span (span of apprehension)"?
What is the meaning of "perceptual span (span of apprehension)"?
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What was George Sperling's contribution to our understanding of perception?
What was George Sperling's contribution to our understanding of perception?
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What is the "Inverse Projection Problem" in the context of designing a perceiving machine?
What is the "Inverse Projection Problem" in the context of designing a perceiving machine?
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What point is made regarding the use of autonomous vehicle crash statistics?
What point is made regarding the use of autonomous vehicle crash statistics?
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Which of these is NOT listed as a challenge in designing a perceiving machine?
Which of these is NOT listed as a challenge in designing a perceiving machine?
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What is the primary message conveyed in the text about perception?
What is the primary message conveyed in the text about perception?
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What is the likely implication of the statement "Seeming ease leads to trivializing" as it relates to the topic of perception?
What is the likely implication of the statement "Seeming ease leads to trivializing" as it relates to the topic of perception?
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Which of the following is NOT a Gestalt Principle of Perceptual Organization?
Which of the following is NOT a Gestalt Principle of Perceptual Organization?
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What does Helmholtz's Unconscious Inference suggest?
What does Helmholtz's Unconscious Inference suggest?
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What does the 'Oblique Effect' suggest about our perception?
What does the 'Oblique Effect' suggest about our perception?
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Which of the following is NOT a regularity of the environment mentioned in the text?
Which of the following is NOT a regularity of the environment mentioned in the text?
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Palmer (1975) studied the influence of context on perception. What did his research demonstrate?
Palmer (1975) studied the influence of context on perception. What did his research demonstrate?
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What is the 'prior probability' in Bayesian Inference?
What is the 'prior probability' in Bayesian Inference?
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Why does movement facilitate perception?
Why does movement facilitate perception?
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Which of the following concepts emphasizes the role of prior knowledge in perception?
Which of the following concepts emphasizes the role of prior knowledge in perception?
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Which of the following is an example of a 'Scene Schema' as described in the text?
Which of the following is an example of a 'Scene Schema' as described in the text?
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What is the key difference between 'Direct Perception' and 'Constructive Perception'?
What is the key difference between 'Direct Perception' and 'Constructive Perception'?
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What did Sperling find in his partial report experiment regarding the number of items reported?
What did Sperling find in his partial report experiment regarding the number of items reported?
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What was the main purpose of Experiment 2 in Sperling's iconic memory research?
What was the main purpose of Experiment 2 in Sperling's iconic memory research?
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What prediction was made in Experiment 2 regarding the effect of a delay before the cue signal in the 'No Icon' condition?
What prediction was made in Experiment 2 regarding the effect of a delay before the cue signal in the 'No Icon' condition?
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What was the key finding of Averbach & Coriell's (1961) study?
What was the key finding of Averbach & Coriell's (1961) study?
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What is the significance of the finding that the iconic image decays and is lost rapidly?
What is the significance of the finding that the iconic image decays and is lost rapidly?
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Which of the following is NOT a conclusion drawn from Sperling's research on iconic memory?
Which of the following is NOT a conclusion drawn from Sperling's research on iconic memory?
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What is the main question being addressed in Sperling's Experiment 3?
What is the main question being addressed in Sperling's Experiment 3?
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Based on the findings of Sperling's experiments, what can be said about the relationship between sensory memory and attention?
Based on the findings of Sperling's experiments, what can be said about the relationship between sensory memory and attention?
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What is the key difference between the partial report condition and the whole report condition in Sperling's experiments?
What is the key difference between the partial report condition and the whole report condition in Sperling's experiments?
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What is the main implication of Sperling's iconic memory research for our understanding of visual perception?
What is the main implication of Sperling's iconic memory research for our understanding of visual perception?
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Which of the following is NOT a characteristic of iconic memory as described by Sperling?
Which of the following is NOT a characteristic of iconic memory as described by Sperling?
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What is the primary advantage of using the partial report method in Sperling's experiments?
What is the primary advantage of using the partial report method in Sperling's experiments?
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Which of the following statements accurately describes the concept of 'iconic image' in the context of Sperling's research?
Which of the following statements accurately describes the concept of 'iconic image' in the context of Sperling's research?
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What is the primary theoretical implication of the findings that the iconic image decays rapidly?
What is the primary theoretical implication of the findings that the iconic image decays rapidly?
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Sperling's research on iconic memory contributed significantly to our understanding of which aspect of human cognition?
Sperling's research on iconic memory contributed significantly to our understanding of which aspect of human cognition?
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Which of the following statements accurately describes the relationship between Sperling's work and the concept of 'attentional bottleneck'?
Which of the following statements accurately describes the relationship between Sperling's work and the concept of 'attentional bottleneck'?
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What is the significance of Experiment 1 in Sperling's iconic memory research?
What is the significance of Experiment 1 in Sperling's iconic memory research?
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What is the theoretical limit on the capacity of short-term memory, according to Miller’s (1956) analysis?
What is the theoretical limit on the capacity of short-term memory, according to Miller’s (1956) analysis?
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What is a 'chunk' in short-term memory, according to the provided text?
What is a 'chunk' in short-term memory, according to the provided text?
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How does the concept of 'recoding' relate to the capacity of short-term memory?
How does the concept of 'recoding' relate to the capacity of short-term memory?
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How can the concept of 'mnemonic' be used to improve memory?
How can the concept of 'mnemonic' be used to improve memory?
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What is the relationship between short-term memory chunks and long-term memory?
What is the relationship between short-term memory chunks and long-term memory?
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What is the purpose of the 'Change Detection Task' in the context of the provided text?
What is the purpose of the 'Change Detection Task' in the context of the provided text?
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Which of the following is NOT a reason why 'Chunks' in short-term memory could be considered unequal?
Which of the following is NOT a reason why 'Chunks' in short-term memory could be considered unequal?
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Why is the 'Change Detection Task' considered a suitable method for estimating short-term memory capacity?
Why is the 'Change Detection Task' considered a suitable method for estimating short-term memory capacity?
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In Keppel & Underwood's (1962) study, what is the independent variable?
In Keppel & Underwood's (1962) study, what is the independent variable?
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Which of these is a characteristic of Proactive Interference (PI)?
Which of these is a characteristic of Proactive Interference (PI)?
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In Wickens' (1972) 'Release from PI' experiment, the experimental group is exposed to a new category of items in Trial 4. What is the purpose of this?
In Wickens' (1972) 'Release from PI' experiment, the experimental group is exposed to a new category of items in Trial 4. What is the purpose of this?
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Which of the following is a potential confound in Keppel & Underwood's study?
Which of the following is a potential confound in Keppel & Underwood's study?
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Which statement best describes the difference between RI and PI?
Which statement best describes the difference between RI and PI?
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What is the main point being made by the content about forgetting in short-term memory?
What is the main point being made by the content about forgetting in short-term memory?
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What does the graph in the content demonstrate concerning the relationship between forgetting in short-term memory and retention intervals?
What does the graph in the content demonstrate concerning the relationship between forgetting in short-term memory and retention intervals?
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How did Waugh & Norman (1965) manipulate the presentation rate of items in their experiment?
How did Waugh & Norman (1965) manipulate the presentation rate of items in their experiment?
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What is the primary conclusion drawn from Waugh & Norman's (1965) study concerning the influence of presentation rate on forgetting in short-term memory?
What is the primary conclusion drawn from Waugh & Norman's (1965) study concerning the influence of presentation rate on forgetting in short-term memory?
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What is the alternative explanation presented in the content regarding forgetting in short-term memory?
What is the alternative explanation presented in the content regarding forgetting in short-term memory?
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What is the primary difference between Brown (1958) and Peterson & Peterson's (1959) study regarding forgetting in short-term memory?
What is the primary difference between Brown (1958) and Peterson & Peterson's (1959) study regarding forgetting in short-term memory?
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What is the key contribution of Alvarez and Cavanaugh (2004) to our understanding of short-term memory capacity?
What is the key contribution of Alvarez and Cavanaugh (2004) to our understanding of short-term memory capacity?
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What is the primary focus of the research by Waugh & Norman (1965) as it relates to short-term memory?
What is the primary focus of the research by Waugh & Norman (1965) as it relates to short-term memory?
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Based on the document, what are the key characteristics of a memory store?
Based on the document, what are the key characteristics of a memory store?
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What is the primary focus of cognitive psychology as discussed in the document?
What is the primary focus of cognitive psychology as discussed in the document?
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According to the document, which of the following is NOT a key component of the Information Processing Model?
According to the document, which of the following is NOT a key component of the Information Processing Model?
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What is the defining characteristic of 'Transfer' as it relates to memory stores?
What is the defining characteristic of 'Transfer' as it relates to memory stores?
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What are the main topics covered in this lecture on cognitive psychology?
What are the main topics covered in this lecture on cognitive psychology?
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What is the primary difference between serial recall and free recall?
What is the primary difference between serial recall and free recall?
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What does the 'asymptote' represent in the Serial Position Curve?
What does the 'asymptote' represent in the Serial Position Curve?
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What is the primary effect of increasing distraction on the Serial Position Curve?
What is the primary effect of increasing distraction on the Serial Position Curve?
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What is the relationship between word frequency and memory performance in the Serial Position Curve?
What is the relationship between word frequency and memory performance in the Serial Position Curve?
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What is the primary purpose of the 'concept of dissociation' in the context of memory research?
What is the primary purpose of the 'concept of dissociation' in the context of memory research?
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What is the key characteristic of a double dissociation in memory research?
What is the key characteristic of a double dissociation in memory research?
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Which of the following is NOT a valid reason for suggesting that working memory and long-term memory are different?
Which of the following is NOT a valid reason for suggesting that working memory and long-term memory are different?
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Which of the following is a primary difference between sensory memory and working memory?
Which of the following is a primary difference between sensory memory and working memory?
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What was the primary finding of Sperling's (1960) partial report experiment regarding the number of items reported compared to the whole report experiment?
What was the primary finding of Sperling's (1960) partial report experiment regarding the number of items reported compared to the whole report experiment?
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Which of the following is NOT a characteristic of iconic memory as demonstrated by Sperling's research?
Which of the following is NOT a characteristic of iconic memory as demonstrated by Sperling's research?
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What is the primary theoretical implication of Sperling's research on iconic memory?
What is the primary theoretical implication of Sperling's research on iconic memory?
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What is the main advantage of using the partial report method in Sperling's iconic memory research?
What is the main advantage of using the partial report method in Sperling's iconic memory research?
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What is the primary difference between iconic memory and short-term memory?
What is the primary difference between iconic memory and short-term memory?
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What type of coding does Conrad (1964) suggest is used in working memory based on sound-alike errors?
What type of coding does Conrad (1964) suggest is used in working memory based on sound-alike errors?
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Which of the following is NOT a component of Baddeley's Working Memory Model?
Which of the following is NOT a component of Baddeley's Working Memory Model?
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What is the key difference between the 'Serial Exhaustive Search' and the 'Serial Self-Terminating Search' models of working memory?
What is the key difference between the 'Serial Exhaustive Search' and the 'Serial Self-Terminating Search' models of working memory?
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What did the Sternberg (1966) experiments on working memory retrieval using the recognition task demonstrate about the relationship between response time and memory set size?
What did the Sternberg (1966) experiments on working memory retrieval using the recognition task demonstrate about the relationship between response time and memory set size?
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What is the main contribution of the 'Release from Proactive Interference (PI)' effect to our understanding of working memory?
What is the main contribution of the 'Release from Proactive Interference (PI)' effect to our understanding of working memory?
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Which of the following correctly describes the function of the 'Articulatory Rehearsal Process' in Baddeley's Working Memory Model?
Which of the following correctly describes the function of the 'Articulatory Rehearsal Process' in Baddeley's Working Memory Model?
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How does the 'Episodic Buffer' in Baddeley's Working Memory Model differ from the other components?
How does the 'Episodic Buffer' in Baddeley's Working Memory Model differ from the other components?
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What is the main idea behind Baddeley and Hitch's (1974) shift from 'short-term memory' to 'working memory'?
What is the main idea behind Baddeley and Hitch's (1974) shift from 'short-term memory' to 'working memory'?
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In Brooks' (1968) study, why did performance suffer when the required response format matched the primary task format?
In Brooks' (1968) study, why did performance suffer when the required response format matched the primary task format?
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What is the 'Additive Factors Model' used to analyze?
What is the 'Additive Factors Model' used to analyze?
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Which of the following accurately describes the function of the Central Executive in Baddeley's Working Memory Model?
Which of the following accurately describes the function of the Central Executive in Baddeley's Working Memory Model?
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Which of the following statements accurately reflects the findings of Wickelgren (1965)?
Which of the following statements accurately reflects the findings of Wickelgren (1965)?
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What principle is demonstrated by the "release from proactive interference (PI)" phenomenon in Wickens' experiments on short-term memory?
What principle is demonstrated by the "release from proactive interference (PI)" phenomenon in Wickens' experiments on short-term memory?
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How do Shephard & Metzler (1971) demonstrate visual coding in working memory?
How do Shephard & Metzler (1971) demonstrate visual coding in working memory?
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What is the primary function of the 'Phonological Store' in Baddeley's Working Memory Model?
What is the primary function of the 'Phonological Store' in Baddeley's Working Memory Model?
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What key concept did Sternberg (1966, 1969) contribute to the understanding of working memory?
What key concept did Sternberg (1966, 1969) contribute to the understanding of working memory?
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Study Notes
Psychology 221: Introduction to Cognitive Psychology - Perception
- Course: Psychology 221, Introduction to Cognitive Psychology
- Instructor: Thomas Spalek
- Week: 2
- Chapter: 3
- Topic: Perception
Plan for Today
- Input
- Sensory Memory
- Pattern Recognition
- Bottom-Up vs Top-Down Processing
Information Processing Model (Atkinson and Shiffrin, 1968)
- Input → Sensory registers (Visual, Auditory, Haptic) → Rehearsal → Short-term memory → Long-term memory → Output
- Information flows through these stages.
- Rehearsal is crucial for transferring information from short-term to long-term memory.
Sensation vs. Perception
- Sensation: The reception of environment stimulation and its initial encoding into the nervous system.
- Perception: The process of interpreting and understanding sensory information.
Input: The Eye
- Detailed diagram of the eye with labels (e.g., cornea, lens, iris, retina, optic nerve).
- Key structures are explained
- Light enters the eye, passing through the cornea, the pupil, and the lens.
- The lens focuses the light onto the retina.
- The retina contains photoreceptors (cones and rods).
- Rods and cones stimulate the bipolar cells and ganglion cells, which transmit signals to the optic nerve and brain.
Photoreceptors
- Cones: Responsible for color vision (Red, Green, Blue).
- Rods: Responsible for luminance vision (white/black vision).
- Rods are more sensitive to low light than cones.
Distribution of Photoreceptors
- High density of cones in the fovea (center of the retina).
- High density of rods outside the fovea.
- The blind spot is where the optic nerve leaves the eye.
Refining the Input
- Photoreceptors → Bipolar Cells → Ganglion Cells → Visual Cortex.
- Information is refined and processed as it moves from the retina to the brain.
Saccades and Fixations
- Saccade: Quick eye movements from one location to another. (25-175 msec).
- Fixation: Brief stops in eye movement to process the visual scene. (typically 200 msec or less).
Perceptual Span
- Perceptual span: Number of items a person can identify in a brief display without eye movements. Approximately 4.5 items.
George Sperling (1960)
- Sperling's research challenged the concept of limited perceptual span.
- Introduced the concept of iconic memory as a sensory store. Specifically challenged the notion that perceptual span is 4.5 items for 10-200 msec displays.
Sperling (1960; Experiment 1)
- Whole Report: Subjects attempted to report all items seen after brief display. (35% of items accurate).
- Partial Report: Subjects were cued (after the brief display) to report items in specific locations of the array. (82% of items accurate).
- Sperling’s results supported a much larger initial sensory store than suggested by previous research.
- Sperling's findings support the existence of iconic memory.
Sperling (1960; Experiment 2)
- Varied delay times before the cue and found decay in this iconic memory.
- Supported the idea that iconic memory fades.
Sperling (1960; Experiment 3)
- Focused on the format of representation in iconic memory.
- Supports the notion that iconic memory preserves a raw, uninterpreted visual image; without any higher-level processing.
- Results of the variations of the reporting tasks demonstrate different properties of iconic memory.
Sperling (1963) – Duration of Iconic Memory
- Explores the duration of iconic memory as the duration of exposure to a stimulus changes.
- Attempt to capture timing of pattern recognition from sensory store.
- Methodology contained a flaw. The flaw was that Sperling's 1963 methodology mistakenly assumed subjects could extract information from the iconic memory at any point during the actual display.
Problem and Solution
- Problem: Sperling's 1963 methodology mistakenly assumed subjects could extract information from iconic memory at any point during the actual display.
- Solution: Results illustrate how iconic memory decays rapidly, typically lasting only a fraction of a second.
Sperling’s Conclusions-Summary
- Pattern recognition occurs rapidly at a rate of roughly 1 letter every 10 msec, up to a maximum of 5 items.
- Pattern recognition is at least partially determined by short-term memory capacity.
- Sensory store contains a considerable amount of unprocessed information.
Summary
- Sensory memory holds unprocessed sensory information.
- Sensory memory has a large capacity.
- Information in sensory memory decays rapidly.
- Information is transferred to short-term memory.
Pattern Recognition – Template Theories
- Template: A pattern stored in memory and matched directly to incoming stimuli.
- Examples: Bar codes, numbers on checks.
Problems with Template Matching
- Orientation variations complicate accurate matches.
- Need for multiple templates for pattern variations.
Feature Theories
- Features: Distinctive elements make a pattern.
- A feature theory aims to describe a pattern in terms of its elements
- Examples used in letter recognition, such as Selfridge's model.
Selfridge (1959)
- Detailed model, but overall useful model for feature theories of perception.
Bottom-up vs Top-down processing
- Bottom-up: Processing begins with sensory data (Bottom) and ends with a representation of the stimulus. Lower-level processing isn’t affected by higher-level concerns.
- Top-down: Higher-level knowledge or expectations influence the interpretation of sensory input.
Direct vs Constructive Perception
- Direct perception theories: Perception relies on sensory data alone; Perception comes from the stimuli itself
- Constructive perception theories: Perception involves actively constructing perceptions using knowledge and expectations.
Gestalt Principles of Perceptual Organization
- Rules that govern how features are grouped together.
- Similarity
- Good continuation
- Law of Prägnanz (simplicity)
Helmholtz's Unconscious Inference
- Our perceptions use inferences based on assumptions and likelihood principle. Likelihood principle: we perceive things in a way that is most likely based on our background.
Regularities of the Environment
- Common properties of the environment affect perception
- Common physical regularities (e.g., verticals and horizontals)
- Common semantic regularities (E.g. understanding a given scene)
- Oblique effect
- Light from above
Palmer (1975)
- Studied visual context effects.
Features in Context
- Context influences recognition.
Bayesian Inference
- One's estimation of an outcome is assessed by prior information and the likelihood of outcome.
Movement Facilitates Perception
- Movement increases perceptual complexity.
Difficulty in Designing Perceiving Machines
- Inverse projection problem: Infinite number of stimuli that create the same retinal image.
- Viewpoint invariance: Objects can be observed in varying orientations (from different viewpoints)
- Scenes contain high-level information. Scenes are more complex.
Too soon?
- Availability bias: We don't account for how biases can affect decision making.
- Are the statistics seen in autonomous vehicles too soon to draw meaningful comparisons to human error? ~90% of crashes are due to human error; autonomous driving statistics might be misleading.
Seeming ease leads to trivialization
- Perception is more complicated than it seems and the processes underlying recognition are complex.
Perception is complicated
- Illustrates that our perception is not always simple, clear, or in one dimension.
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Description
This quiz explores key concepts of the Information Processing Model in cognitive psychology, focusing on input, perception, and notable experiments like Sperling's. Test your understanding of the essential components and historical background related to cognitive processing. Dive into the intricacies of perception and memory as outlined in the course material.