Emotions Understanding the Cannon-Bard Theory of Emotion By Kendra Cherry Kendra Cherry Facebook Twitter Kendra Cherry, MS, is an author and educational consultant focused on helping students learn about psychology. Learn about our editorial process Updated on September 17, 2020 Medically reviewed Verywell Mind articles are reviewed by board-certified physicians and mental healthcare professionals. Medical Reviewers confirm the content is thorough and accurate, reflecting the latest evidence-based research. Content is reviewed before publication and upon substantial updates. Learn more. by Amy Morin, LCSW Medically reviewed by Amy Morin, LCSW Facebook LinkedIn Twitter Amy Morin, LCSW, is the Editor-in-Chief of Verywell Mind. She's also a psychotherapist, the author of the bestselling book "13 Things Mentally Strong People Don't Do," and the host of The Verywell Mind Podcast. Learn about our Medical Review Board Print PeopleImages.com / DigitalVision / Getty Images Table of Contents View All Table of Contents How the Cannon-Bard Theory Works Examples Comparison to Other Theories Criticisms The Cannon-Bard theory of emotion, also known as the Thalamic theory of emotion, is a physiological explanation of emotion developed by Walter Cannon and Philip Bard. Cannon-Bard theory states that we feel emotions and experience physiological reactions such as sweating, trembling, and muscle tension simultaneously. How the Cannon-Bard Theory Works More specifically, it is suggested that emotions result when the thalamus sends a message to the brain in response to a stimulus, resulting in a physiological reaction. For example: I see a snake --> I am afraid, and I begin to tremble. According to the Cannon-Bard theory of emotion, we react to a stimulus and experience the associated emotion at the same time. The physical reactions are not dependent upon the emotional reaction, or vice versa. When an event occurs, the thalamus transmits a signal to the amygdala. The amygdala is a small, oval-shaped structure in the brain that plays an important role in emotional processing, including emotions such as fear and anger. The thalamus also sends signals to the autonomic nervous system, resulting in physical reactions such as muscle tension, shaking, and sweating. Examples You can see how the Cannon-Bard theory might be applied by looking at any experience where you have an emotional reaction. While you might immediately think of negative emotional responses, it also applies to positive emotions as well. A Frightening Experience For example, imagine that you are walking to your car through a darkened parking garage. You hear the sounds of footsteps trailing behind you, and spot a shadowy figure slowly following you as you make your way to your car. According to the Cannon-Bard theory of emotion, you will experience feelings of fear and physical reaction at the same time. You will begin to feel fearful, and your heart will begin to race. You rush to your car, lock the doors behind you, and rush out of the parking garage to head home. The Fight-or-Flight Response A New Job Imagine that you are starting a new job. Your first day can be stressful. You'll be meeting new co-workers, making first impressions, learning more about your role, and participating in training or meetings. Cannon-Bard theory suggests that you would experience both physical and emotional signs of stress simultaneously. You might feel nervous and experience an upset stomach. A Date Imagine that you are going on a date with someone you recently met. You really like this person and are excited to spend time with them. You experience both physical and emotional responses, including feelings of happiness and excitement as well as sweaty palms and a rapid heartbeat. 18 Effective Stress Relief Strategies Comparison to Other Theories The Cannon-Bard theory differs from other theories of emotion such as the James-Lange theory of emotion, which argues that physiological responses occur first and are the cause of emotions. The James-Lange theory was the dominant theory of emotion at the time, but Harvard physiologist Walter Cannon and his doctoral student Philip Bard felt that the theory did not accurately reflect how emotional experiences take place. The 6 Major Theories of Emotion James-Lange Theory Cannon-Bard theory was formulated as a reaction to the James-Lange theory of emotion. Where James-Lange theory represented a physiological explanation for emotions, the Cannon-Bard theory represents and neurobiological approach. William James’s theory suggested that people first experience a physiological reaction in response to a stimulus in the environment. People then experience some sort of physiological reaction to this stimulus which is then labeled as an emotion. For example, if you encounter a growling dog, you might begin to breathe rapidly and tremble. James-Lange theory would then suggest that you would label those feelings as fear. Cannon's work instead suggested that emotions could be experienced even when the body does not reveal a physiological reaction. In other cases, he noted, physiological reactions to different emotions can be extremely similar. People experience sweating, a racing heartbeat, and increased respiration in response to fear, excitement, and anger. These emotions are very different, but the physiological responses are the same. Cannon and Bard instead suggested that the experience of emotion was not dependent upon interpreting the body's physiological reactions. Instead, they believed that the emotion and the physical response occur simultaneously and that one was not dependent upon the other. Schacter-Singer Theory Another more recent theory is the Schacter-Singer theory of emotion (also known as two-factor) theory, which takes a cognitive approach. The Schacter-Singer theory draws on elements of both James-Lange theory and Cannon-Bard theory, proposing that physiological arousal occurs first but that such reactions are often similar for different emotions. The theory suggests that the physiological reactions must be cognitively labeled and interpreted as a particular emotion. The theory emphasizes the role that cognition and elements of the situation play in the experience of emotion. Criticisms Criticisms suggest that Cannon-Bard theory places too much emphasis on the role that the thalamus plays in emotions while largely ignoring other parts of the brain. The thalamus is part of the limbic system and does play an important part in the experience of emotions, but more recent research suggests that the process is more complex than the Cannon-Bard theory suggests. The basic assumption of Cannon-Bard theory, that physical reactions do not lead to emotions, has been refuted by a number of studies. Research has shown that when people are asked to make a particular facial expression, such as frowning or smiling, they are more likely to also experience an emotion connected to that expression. Basic Emotions and Their Effect on Human Behavior 4 Sources Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Fama R, Sullivan EV. Thalamic structures and associated cognitive functions: Relations with age and aging. Neurosci Biobehav Rev. 2015;54:29-37. doi:10.1016/j.neubiorev.2015.03.008 Sullivan LE. Cannon-Bard theory. The SAGE Glossary of the Social and Behavioral Sciences. 2017. Roxo MR, Franceschini PR, Zubaran C, Kleber FD, Sander JW. The limbic system conception and its historical evolution. ScientificWorldJournal. 2011;11:2428–2441. doi:10.1100/2011/157150 Laird JD, Lacasse K. Bodily influences on emotional feelings: Accumulating evidence and extensions of William James’s theory of emotion. Emotion Review. 2014;6(1):27–34. doi:10.1177/1754073913494899 Additional Reading Cannon, W. B. (1927) The James-Lange Theory of Emotion: A Critical Examination and an Alternative Theory. American Journal of Psychology, 39, 10-124. By Kendra Cherry Kendra Cherry, MS, is an author and educational consultant focused on helping students learn about psychology. See Our Editorial Process Meet Our Review Board Share Feedback Was this page helpful? Thanks for your feedback! What is your feedback? 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