Cognitive Control and Phineas Gage
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Questions and Answers

What is cognitive control primarily defined as?

  • The ability to guide behavior and processing towards a goal (correct)
  • The speed of reaction to stimuli
  • A measure of emotional regulation only
  • The ability to perform tasks automatically without thought
  • What is the primary reason the results of the study are inconclusive?

  • The sample size was too small. (correct)
  • The methodology was flawed.
  • The results were not replicated.
  • The participants had varying abilities.
  • How did Phineas Gage's case contribute to our understanding of cognitive control?

  • His injury allowed him to plan better long-term goals
  • He displayed increased cognitive control after his injury
  • He exhibited a loss of inhibition and emotional regulation (correct)
  • His behavior improved due to frontal lobe function
  • How does the activity of the dlPFC change with the Stroop Task during congruent trials?

    <p>It remains steady.</p> Signup and view all the answers

    In the Stroop Task, what condition represents minimal cognitive control?

    <p>Congruent condition</p> Signup and view all the answers

    What is the role of the anterior cingulate cortex (ACC) during the instruction period of the Stroop Task?

    <p>It has no higher activity.</p> Signup and view all the answers

    What brain region is primarily involved in executive functions related to cognitive control?

    <p>Prefrontal Cortex (PFC)</p> Signup and view all the answers

    Which statement accurately describes the reaction times in the Stroop Task?

    <p>Incongruent trials have longer reaction times due to cognitive interference</p> Signup and view all the answers

    What happens to ACC activity when incongruent examples are presented in the Stroop Task?

    <p>It increases due to conflict present.</p> Signup and view all the answers

    What is a characteristic of the incongruent condition in the Stroop Task?

    <p>Participants must inhibit an automatic response</p> Signup and view all the answers

    In the context of the Stroop Task, what effect does higher dlPFC activity have on Stroop Interference?

    <p>It decreases interference.</p> Signup and view all the answers

    What link does working memory have with cognitive control in relation to the study's findings?

    <p>Working memory is essential for maintaining goals.</p> Signup and view all the answers

    What type of behavior did Phineas Gage struggle with after his accident?

    <p>Inhibition of impulsive behaviors</p> Signup and view all the answers

    What role does the Anterior Cingulate Cortex (ACC) play during the Stroop Task?

    <p>It detects conflicts between competing responses</p> Signup and view all the answers

    What is a consequence of dlPFC lesions in relation to attention demands?

    <p>Difficulty maintaining attention despite instructions.</p> Signup and view all the answers

    What was observed in the research with primates that parallels the findings in humans regarding the dlPFC?

    <p>Similar regions in primates also respond strategically to tasks.</p> Signup and view all the answers

    What is the primary function of the Basal Ganglia in the context of cognitive control?

    <p>Suppressing automatic motor responses</p> Signup and view all the answers

    Which area is responsible for monitoring conflict in cognitive control systems?

    <p>Anterior Cingulate Cortex (ACC)</p> Signup and view all the answers

    How does the feedback loop contribute to cognitive control?

    <p>It resolves conflict by adjusting control processes</p> Signup and view all the answers

    In the PebblePad page model, what function does the Task Representation Layer serve?

    <p>It maintains the task goal</p> Signup and view all the answers

    What happens during an incongruent trial in the Stroop task as per the feedback loop model?

    <p>There is increased activity in the ACC</p> Signup and view all the answers

    What is one of the main goals of cognitive control in relation to sensory stimuli?

    <p>To eliminate errors through conflict detection</p> Signup and view all the answers

    Which part of the brain is indicated as essential for maintaining attention within the feedback loop?

    <p>dlPFC (dorsolateral prefrontal cortex)</p> Signup and view all the answers

    In the context of cognitive control, what does inhibition primarily help achieve?

    <p>Blocking irrelevant information</p> Signup and view all the answers

    Which brain area is primarily responsible for processing color information during the Stroop task?

    <p>Occipital lobe</p> Signup and view all the answers

    What is the main function of the dorsolateral prefrontal cortex (dlPFC) in the context of the Stroop task?

    <p>Top-down control</p> Signup and view all the answers

    What impact did the damage to Phineas Gage's dlPFC have on his behavior?

    <p>Increased impulsivity and poor planning</p> Signup and view all the answers

    In the study conducted by McDonald, what was used as the dependent variable to measure the brain's response?

    <p>Activity levels in the dorsolateral prefrontal cortex and anterior cingulate cortex</p> Signup and view all the answers

    During the Stroop task experiment, what was one of the independent variables manipulated?

    <p>Instruction given for the task</p> Signup and view all the answers

    Which brain area is involved in conflict monitoring during cognitive tasks like the Stroop task?

    <p>Anterior cingulate cortex</p> Signup and view all the answers

    What task demands did Phineas Gage struggle with after his dlPFC damage?

    <p>Inhibiting inappropriate responses</p> Signup and view all the answers

    The double-dissociation in McDonald's study aims to separate which two brain area's activities?

    <p>Dorsolateral prefrontal cortex and anterior cingulate cortex</p> Signup and view all the answers

    Study Notes

    Cognitive Control and Phineas Gage

    • Cognitive control is the ability to guide behavior by processing in the direction of a goal.
    • This involves higher-level thinking and overriding automatic responses.
    • Phineas Gage's case highlights the importance of the prefrontal cortex in cognitive control.
    • Damage to the frontal lobe can result in difficulty inhibiting impulsive behaviors and poor emotional regulation.
    • Impairment in goal-directed behavior, including planning, decision-making, and long-term goal setting, can occur.
    • Emotional dysregulation, making it difficult to balance emotional impulses and rational thought, often arises.

    Stroop Task

    • The Stroop Task assesses cognitive control.
    • Participants name the color of a word, not the word itself.
    • Congruent trials: Color and word are the same.
    • Incongruent trials: Color and word are different, requiring more cognitive control to inhibit the automatic word-reading response.
    • Neutral trials: Color and word have no relationship, requiring no cognitive control.
    • Results show that incongruent trials take longer and have more errors compared to congruent or neutral trials, indicative of interference.
    • Brain regions involved include the prefrontal cortex (executive functions, response inhibition), anterior cingulate cortex (conflict monitoring), parietal cortex (attention), visual cortex (perception), and basal ganglia (suppressing automatic motor responses).

    Feedback Loops and Cognitive Control

    • Feedback loops are crucial for cognitive control.
    • Cognitive control requires conflict detection and response adjustments.
    • These processes are mediated by the anterior cingulate cortex and dorsolateral prefrontal cortex.
    • They work by identifying conflicts in sensory stimuli, adjusting responses to resolve the conflicts, and adapting future behavior.
    • Feedback loops adjust responses to sensory stimuli, resolving conflicts, and adjusting future behaviors.

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    Description

    Explore the concepts of cognitive control through the lens of Phineas Gage's case and the Stroop Task. This quiz delves into how cognitive control is essential for goal-directed behavior, decision-making, and emotional regulation. Understand the impact of frontal lobe damage on these abilities.

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