Cognitive Psychology 1: Attention II
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Questions and Answers

What occurs when the prime and target are the same location and identical?

  • Reaction times are slower
  • Reaction times are faster (correct)
  • No effect on reaction times
  • Reaction times are unpredictable
  • What does the actual result suggest about identification and attention?

  • Identification occurs without attention (correct)
  • Identification occurs only with auditory stimuli
  • Attention is required for all types of identification
  • Attention only affects visual identification
  • What was the task assigned to participants in Kouider et al. (2014)?

  • Identify new words during sleep
  • Respond to animal and man-made object words (correct)
  • Memorize a series of auditory stimuli
  • Count words in a sequence
  • What conclusion does Kouider et al. (2014) tentatively suggest regarding identification?

    <p>There is a possibility of identification without attention in the auditory domain (B)</p> Signup and view all the answers

    What did Lavie's work imply about the assumptions of selection?

    <p>It combines aspects of both early and late selection theories (A)</p> Signup and view all the answers

    What is the primary assumption of Early Selection theories regarding attention and identification?

    <p>Identification requires focused attention. (C)</p> Signup and view all the answers

    What effect was observed when participants reported words from the irrelevant ear during a message switch?

    <p>The own-name effect. (C)</p> Signup and view all the answers

    What did Lachter et al. argue regarding earlier experiments related to attention?

    <p>They failed to control for slippage in attention. (C)</p> Signup and view all the answers

    According to the content, how is the classification of channels as relevant or irrelevant determined?

    <p>Through instructions given to the participants. (A)</p> Signup and view all the answers

    What did studies reveal about skin conductance changes when certain words were presented?

    <p>They showed subconscious processing of words associated with electric shocks. (D)</p> Signup and view all the answers

    What percentage of participants with low working memory capacity noticed their own name according to Conway's study?

    <p>65% (D)</p> Signup and view all the answers

    What factor primarily influences the own-name effect observed in participants?

    <p>Working memory capacity (A)</p> Signup and view all the answers

    What difficulty do participants with low working memory experience according to the findings?

    <p>Difficulty focusing their attention (B)</p> Signup and view all the answers

    In the channel switching experiment, what type of messages did participants hear in the unshadowed ear?

    <p>A mix of unrelated words (B)</p> Signup and view all the answers

    What is suggested to be a common reason for participants to switch channels during the experiment?

    <p>Confusion over coherent to incoherent messages (A)</p> Signup and view all the answers

    Why are replication studies considered crucial in psychological research?

    <p>To confirm previous findings (D)</p> Signup and view all the answers

    What was a common result of replication studies mentioned in the document?

    <p>They often fail to replicate findings (B)</p> Signup and view all the answers

    What does high working memory capacity enable participants to do better than those with low working memory capacity?

    <p>Control their attention (D)</p> Signup and view all the answers

    What was the primary goal of Dawson & Schell's study?

    <p>To replicate previous findings on skin conductance changes (C)</p> Signup and view all the answers

    What did Dawson & Schell find regarding skin conductance changes?

    <p>In subjects who attended to the irrelevant channel (A)</p> Signup and view all the answers

    How did Lachter et al. attempt to exclude slippage of attention?

    <p>By presenting stimuli in different locations very briefly (C)</p> Signup and view all the answers

    What is the main effect of repetition priming?

    <p>It enhances the identification of similar or same target words (D)</p> Signup and view all the answers

    What does late selection theory typically assume about perceptual processing?

    <p>It is automatic. (D)</p> Signup and view all the answers

    In Lachter et al.'s experiment, where was the target word always presented?

    <p>In the center of the screen (A)</p> Signup and view all the answers

    What duration were the prime and target stimuli presented for in Lachter et al.'s study?

    <p>55ms (C)</p> Signup and view all the answers

    According to the hybrid theory, what is necessary for identification to occur?

    <p>Attention. (D)</p> Signup and view all the answers

    What is the outcome when relevant stimuli consume all available resources?

    <p>No identification of irrelevant stimuli. (B)</p> Signup and view all the answers

    What was a finding of Dawson & Schell regarding attention?

    <p>Attention can shift unnoticed to irrelevant channels (A)</p> Signup and view all the answers

    In Lavie & Cox (1997), what characterizes low perceptual load conditions?

    <p>Target is immediately visible. (C)</p> Signup and view all the answers

    Which element is crucial for identifying words in a repetition priming scenario?

    <p>The location of the prime relative to the target (A)</p> Signup and view all the answers

    What occurs during high perceptual load trials according to Lavie & Cox (1997)?

    <p>Resources are focused exclusively on relevant stimuli. (B)</p> Signup and view all the answers

    What is a compatibility effect in the context of the study by Lavie & Cox (1997)?

    <p>Successful detection of targets in compatible conditions. (A)</p> Signup and view all the answers

    What would be a potential outcome in a low load trial when irrelevant and relevant stimuli are identical?

    <p>Increased compatibility effect. (A)</p> Signup and view all the answers

    Which of the following is true about the processing of irrelevant stimuli in the presence of relevant stimuli?

    <p>Irrelevant stimuli can be identified if sufficient resources remain. (A)</p> Signup and view all the answers

    What are the two major types of selection theories discussed?

    <p>Early and late selection theories (A)</p> Signup and view all the answers

    What is the process referred to as when information from the irrelevant channel is not fully blocked but rather attenuated?

    <p>Leakage (C)</p> Signup and view all the answers

    Which of the following best describes slippage in relation to attentional resources?

    <p>Attention cannot always be aimed precisely at the relevant channel. (D)</p> Signup and view all the answers

    What does spillover suggest about the deployment of attention?

    <p>Attention continues until it is fully accounted for or depleted. (A)</p> Signup and view all the answers

    In the context of load theory of attention, what role does perceptual load play?

    <p>It determines how much attention can be spared for processing. (B)</p> Signup and view all the answers

    What is an outcome of the early selection theory supporting evidence?

    <p>Unattended stimuli are effectively ignored. (A)</p> Signup and view all the answers

    Which metaphor is used to explain the concept of slippage?

    <p>Pouring from a large container into a smaller one. (A)</p> Signup and view all the answers

    What aspect does Lachter’s theory differ from traditional early selection theory?

    <p>It provides an alternative explanation based on resource allocation. (D)</p> Signup and view all the answers

    Flashcards

    Early Selection Theory

    The idea that we can only process the meaning of information if we pay attention to it. This means that if we identify a word in the irrelevant channel, it means we actually attended to it.

    Own-Name Effect

    A phenomenon where people notice their own name even when they are trying to ignore other sounds, suggesting that they are processing the meaning of the ignored sounds.

    Slippage

    The idea that people might unintentionally shift their attention to the 'irrelevant' channel, even when they are instructed to focus on the other channel.

    Irrelevant Channel

    The channel that is explicitly ignored while trying to focus on the other channel.

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    Relevant Channel

    The channel that is being attended to and analyzed for meaning.

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    2x2 Design

    A research design using two independent variables, each with two levels, creating four unique conditions.

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    Prime

    A stimulus that precedes a target and can influence the processing of the target.

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    Reaction Time

    The time it takes to respond to a stimulus.

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    Early Selection Theory (Broadbent)

    The theory that unattended stimuli are not processed and do not reach conscious awareness, thus cannot influence behavior.

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    Late Selection Theory

    The idea that unattended stimuli are processed to some extent, and may influence behavior even without conscious awareness.

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    Attentional Leakage

    The idea that unattended stimuli are not completely blocked from processing, but their strength is reduced, allowing some information to "leak" through.

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    Attentional Slippage

    The phenomenon where attention involuntarily shifts towards irrelevant stimuli due to an inability to perfectly focus resources.

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    Attentional Spillover

    The tendency for attention to spread to the irrelevant channel when the relevant channel does not require all available attentional resources.

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    Irrelevant Channel Detection

    The ability to detect information from the irrelevant channel, indicating that some processing of unattended stimuli occurs.

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    Load Theory of Attention

    A model of attention that suggests the amount of cognitive effort required for a task influences how much information can be processed from the irrelevant channel.

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    Perceptual Load Effect

    The phenomenon that occurs when an overload of information from the relevant channel reduces the ability to process information from the irrelevant channel.

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    Lachter's Early Selection Theory

    A theory that suggests that selection of information occurs early in processing, before meaning is fully extracted, and unattended stimuli are only minimally processed.

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    Perceptual processing (automatic)

    The automatic processing of sensory information, such as recognizing shapes, colors, or sounds.

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    Lavie's Theory of Perceptual Load

    The theory proposes that attentional capacity is limited, and if processing of relevant stimuli consumes all available resources, irrelevant stimuli will not be identified.

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    Spillover (Lavie's theory)

    The theory suggests that the identification of irrelevant stimuli occurs only when processing of relevant stimuli does not fully exhaust available resources.

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    Perceptual load

    The amount of cognitive resources needed to process the relevant stimuli in a task.

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    Low perceptual load

    When the target stimulus is easily identifiable, without any effort required to search for it.

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    High perceptual load

    When the target stimulus is hidden among distractors, requiring effort to search and find it.

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    Compatibility effect

    A difference in response time or accuracy when the distractor is compatible or incompatible with the target stimulus.

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    Flanker effect (Lavie's theory)

    The effect of irrelevant stimuli on the processing of relevant stimuli, which is influenced by the perceptual load of the task.

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    Working Memory Capacity (WMC)

    The ability to hold and manipulate information in our minds.

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    Own-Name Effect and WMC

    In Conway's study, participants with lower WMC were more likely to notice their names in the irrelevant channel.

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    Dichotic Listening

    A procedure where participants are given a message in one ear (attended channel) and another message in the other ear (unattended channel). They are instructed to repeat the message from the attended channel, while ignoring the unattended message.

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    Channel Switching and Attentional Slippage

    In the Channel Switching experiment, participants might shift their attention to the unshadowed ear when the message becomes incoherent, even though they're instructed to repeat the shadowed ear message.

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    Replication Study

    Repeating a scientific study to verify the original findings with potential variations.

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    Importance of Replication Studies

    Replication studies are crucial for building confidence in scientific findings, but they're often unsuccessful, highlighting the importance of rigorous research.

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    Dawson & Schell (1982) study

    A study that attempted to replicate previous findings on changes in skin conductance caused by unattended words. The results showed that skin conductance changes occurred, but only in subjects who sometimes attended to the irrelevant channel, failing to shadow the relevant one and recalling material from the irrelevant channel.

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    Lachter et al.

    A study that aimed to investigate whether identification of a stimulus is possible without focused attention. The researchers used visual stimuli presented at different locations, and the irrelevant stimuli were presented very briefly (55ms). This was done to eliminate the possibility of attentional slippage by preventing shifts of attention to irrelevant locations within the short presentation time.

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    Different location priming

    A type of experimental design that uses stimuli presented in locations different from the target stimulus. It's often used to investigate the role of visual attention in processing information.

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    Repetition priming

    It is the phenomenon where a previously presented stimulus, the prime, influences the processing and recognition of a subsequent stimulus, the target, even if the prime itself is not consciously perceived. For example, if the prime is the word “CAT” and the target is “DOG,” the prime can make it easier to identify the target as an actual word.

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    Concept activation

    A mental representation of a concept that is activated in memory when a related stimulus is presented. For example, seeing the word “CAT” may activate a mental representation of “CAT” in your memory.

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    Response time

    It is the time taken to respond to a stimulus. In the context of repetition priming, it can be used to measure the influence of the prime on the target processing by examining how quickly people can identify the target as a word or a non-word.

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    Inattentional blindness

    In attention research, this is the process of failing to notice a change in a scene or to miss a stimulus within a visual or auditory scene. It can be caused by factors like limited attentional resources or focusing on a specific task.

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    Shadowing task

    It is a task in psychology where participants are asked to attend to one stream of information while ignoring another. The ability to ignore irrelevant information is often referred to as selective attention.

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    Study Notes

    Cognitive Psychology 1: Attention II

    • Early selection theories assume unattended stimuli are not identified.
    • Late selection theories propose unattended stimuli are identified and meaning is analyzed.
    • Current evidence supports early selection, though stimuli from irrelevant channels can sometimes be identified.
    • Irrelevant vs. Relevant Channel – Inputs from ignored channels (e.g., a conversation in the background) are considered irrelevant while the inputs from the attended channel are considered relevant (e.g., the conversation you are focused on).

    Leakage

    • Treisman (1960, 1964) proposed that filters do not block information from irrelevant channels, but rather attenuate it.
    • Information from irrelevant channels "leaks" through the filter.
    • Attenuated information can activate long-term memory concepts leading to stimulus identification.

    Slippage and Spillover – Demonstration

    • Water represents attentional resources.
    • Small container represents the relevant channel.
    • Large container represents the irrelevant channel.
    • The aim of the demonstration is to pour water from the cup into the small container.

    Slippage – Demonstration

    • Visual demonstration showing pouring water into a small container (relevant channel).
    • The difficulty of precisely directing the water (attentional resources) shows the unavoidable slippage into the irrelevant channel.

    Slippage

    • Metaphor: Precisely directing attention (like aiming water) is not always possible.
    • Consequence: if attention is not precisely focused, it may slip to an irrelevant channel.

    Spillover – Demonstration

    • Visual demonstration showing water gradually transferring (spilling) into the secondary container.

    Spillover

    • Metaphor: Attention cannot be stopped until its resources are used up.
    • Consequence: If the relevant channel requires less attention than available, attention will "spill over" to the irrelevant channel.

    Slippage – Lachter et al. (2004)

    • Research challenges the assumption of identification without attention, prevalent for over 40 years.
    • Proposes a need to re-evaluate previous experiments.
    • Aims to show that Broadbent's theory lacks identification without attention.

    Repetition Priming in Different Locations

    • In classic priming, both prime and target stimulus are at the same location.
    • In Lachter et al. (2014), prime stimulus was presented in a different location to the target stimulus, keeping the target at the center.

    Lachter et al. Results (Same Location)

    • Four experimental conditions.
    • Faster reaction times when both prime and target stimuli are the same.
    • Slower reaction times when both stimuli were different.

    Lachter et al. – Results Overview

    • Possible outcome 1: Broadbent was right; no identification without attention.
    • Possible outcome 2: Broadbent was wrong; identification does occur without attention; and priming location has an effect on RT.
    • Actual outcome: identification cannot occur without attention (Broadbent was correct).

    Kouider et al. (2014)

    • Used auditory stimuli (animals vs. man-made objects).
    • Participants responded with different hands based on object category.
    • During sleep participants reacted in sleep suggesting priming words must involve meaning.
    • Conclusion: identification may occur without attention, especially in the auditory domain.

    Lavie (1995) – Spillover

    • Combination of early and late selection assumptions.
    • Perceptual processing is automatic and capacity-limited.
    • If processing of relevant stimuli consumes all resources, there is no processing of irrelevant stimuli.
    • "Spillover" occurs when relevant channel resources are not used to full capacity.

    Lavie & Cox (1997)

    • Task: Detect target letter X/N in circle with flanking letters.
    • Compatible trials: Target and flanker are same (e.g. X X).
    • Incompatible trials: Target and flanker are different (e.g. X N)

    Lavie & Cox (1997) – Low Perceptual Load Condition

    • High compatibility effect (40ms difference).
    • Flanker is processed in the unattended channel.

    Lavie & Cox (1997) – High Perceptual Load Condition

    • Small compatibility effect (4ms difference).
    • Flanker is not processed in the irrelevant channel.

    Lavie & Cox (1997)

    • Hypothesis: Compatibility effect occurs for low load trials, but not for high load tasks.
    • Compatibility effect = different reaction times based on stimuli compatibility (identical/different).

    Lachter vs. Lavie

    • Both support no identification without attention.
    • Lachter: attention focus prevents slippage, irrelevant processing is avoidable.
    • Lavie: attention capacity is limited; irrelevant processing can be unavoidable under low perceptual load.

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    Description

    This quiz covers key theories of attention in cognitive psychology, including early and late selection models. It explores how unattended stimuli can be identified and the concept of information leakage from irrelevant channels. Additionally, the demonstration of attentional resources through slippage and spillover is discussed.

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