Podcast
Questions and Answers
What is the Cannon-Bard theory of emotion?
What is the Cannon-Bard theory of emotion?
The Cannon-Bard theory states that the emotional stimulus enters our sensory systems which causes us to feel emotions which causes emotional expression responses.
What is the James-Lange theory of emotion?
What is the James-Lange theory of emotion?
The James-Lange theory states that the emotional stimulus enters our sensory systems and causes emotional expression responses which causes us to feel emotions.
What theory does recent research suggest supports a lack of emotional feelings despite having emotional responses?
What theory does recent research suggest supports a lack of emotional feelings despite having emotional responses?
James-Lange theory
Who first identified the limbic lobe and named it?
Who first identified the limbic lobe and named it?
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Describe the Papez circuit.
Describe the Papez circuit.
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Does the Papez circuit support the James-Lange theory or the Cannon-Bard theory?
Does the Papez circuit support the James-Lange theory or the Cannon-Bard theory?
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How is the MacLean concept of the limbic system different from the Papez circuit?
How is the MacLean concept of the limbic system different from the Papez circuit?
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What is the modern concept of the limbic system?
What is the modern concept of the limbic system?
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Phineas Gage's accident showed that what area of the brain is involved in emotion?
Phineas Gage's accident showed that what area of the brain is involved in emotion?
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What unwanted effects did frontal lobotomies have despite helping certain symptoms in patients?
What unwanted effects did frontal lobotomies have despite helping certain symptoms in patients?
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What did the Klüver-Bucy experiments on rhesus monkeys show regarding emotional behavior?
What did the Klüver-Bucy experiments on rhesus monkeys show regarding emotional behavior?
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Removal of what area of the brain causes an animal to lose a learned fear response, indicating its crucial role in fear?
Removal of what area of the brain causes an animal to lose a learned fear response, indicating its crucial role in fear?
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What other system leads to a quicker fear response alongside the emotional circuit pathway?
What other system leads to a quicker fear response alongside the emotional circuit pathway?
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In an experiment measuring brain activity in response to different faces, fearful faces caused increased activity in what area?
In an experiment measuring brain activity in response to different faces, fearful faces caused increased activity in what area?
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How does the hippocampus help to regulate the stress response?
How does the hippocampus help to regulate the stress response?
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What two abnormalities lead to an increased stress response?
What two abnormalities lead to an increased stress response?
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What sort of behavior might temporal lobe tumors that compromise the amygdala lead to?
What sort of behavior might temporal lobe tumors that compromise the amygdala lead to?
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Temporal lobe epilepsy leads to what sort of hallucinations?
Temporal lobe epilepsy leads to what sort of hallucinations?
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Study Notes
Cannon-Bard Theory
- Proposes that emotional stimuli are processed by sensory systems, leading to simultaneous emotional feelings and physical reactions.
- For example, feeling happy can result in smiling.
James-Lange Theory
- Suggests that emotional stimuli evoke physical responses first, then emotions are felt based on those responses.
- Example: Smiling can induce feelings of happiness.
Emotional Responses vs. Feelings
- Recent research indicates that emotional responses can occur without accompanying feelings.
- Supports the idea that physical responses are essential for experiencing emotions.
Broca's Contribution
- Identified and named the limbic lobe, contributing to our understanding of emotional processing.
Papez Circuit
- A loop comprising the hypothalamus (mammillary body), anterior thalamic nuclei, cingulate gyrus, and hippocampal formation connected via the fornix.
- This circuit connects key brain areas involved in emotional expression and memory.
Papez Circuit with Theories
- Does not solely support either the James-Lange or Cannon-Bard theories, suggesting a more complex interplay in emotional processing.
MacLean's Limbic System Concept
- Integrates the Papez loop with connections to the neocortex, cingulate gyrus, hippocampal formation, and hypothalamus.
- Links the hippocampus and hypothalamus through the amygdala, creating a broader understanding of emotional processing systems.
Modern Limbic System Understanding
- The limbic system is now viewed as an interconnected system that relays information from various areas to the hypothalamus for autonomic and endocrine responses.
Frontal Lobe and Emotion
- Phineas Gage’s accident revealed the frontal lobe's involvement in regulating emotions, demonstrating the brain's role in mood and behavior.
Effects of Frontal Lobotomies
- While these procedures sometimes alleviated severe symptoms, they also led to emotional flatness, inappropriate behaviors, and concentration difficulties.
Klüver-Bucy Experiments
- Bilateral removal of the temporal lobe’s anterior section, including the amygdala, resulted in emotional flattening and inappropriate behaviors in monkeys.
- Highlights the amygdala's role in processing emotions and behaviors.
Amygdala and Fear Responses
- Removal of the amygdala abolishes learned fear responses, indicating its critical function in fear processing.
Neural Circuit for Learned Fear
- An emotional stimulus triggers a quicker fear response through a different pathway: emotionally competent stimulus → thalamus → amygdala, bypassing the cortex.
Amygdala Activation in Fearful Faces
- Experiments show increased activity in the amygdala in response to fearful facial expressions, indicating its significant role in fear recognition.
Hippocampus and Stress Response Regulation
- The hippocampus inhibits the hypothalamus's release of stress hormones (CRH), helping to manage the body’s stress response through learned experiences.
Abnormalities in Stress Responses
- An increase in amygdala activity or decrease in hippocampal activity can lead to heightened stress responses.
Tumors and Emotional Behavior
- Temporal lobe tumors affecting the amygdala can provoke hostile or aggressive behavior, spontaneous anger, or deep sadness, while hypothalamic tumors may cause similar emotional disturbances.
Hallucinations in Temporal Lobe Epilepsy
- This condition can lead to olfactory or gustatory hallucinations, illustrating the complex effects of temporal lobe dysfunction on perception and emotion.
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Description
Test your knowledge of key theories of emotion with these flashcards! Learn about the Cannon-Bard theory and the James-Lange theory, and how they explain the relationship between emotional stimuli and responses. Perfect for psychology students and enthusiasts.
