Uploaded June 2026 | Updated September 2026, 1 week ago
Aphasia is a language disorder caused by damage to areas of the brain involved in producing or understanding language. In this video, I discuss several of the most common aphasia syndromes: Broca's aphasia, Wernicke's aphasia, conduction aphasia, and global aphasia.
🧠Take your learning further with my free, self-paced Introduction to Neuroscience course featuring my videos, articles, and hundreds of quiz questions: neuroscientificallychallenged.com/course
If you're looking for accessible and entertaining ways to learn more about the brain, check out my books:
đź“šYour Brain, Explained: What Neuroscience Reveals About Your Brain and its Quirks: amazon.com/dp/1473696569
đź“šBizarre: The Most Peculiar Cases of Human Behavior and What They Tell Us About How the Brain Works: amazon.com/dp/139980121X
TRANSCRIPT
Aphasia is a language disorder caused by damage to areas of the brain involved in producing or understanding language. It most often occurs after stroke, especially when the language-dominant cerebral hemisphere is affected, which for most people is the left cerebral hemisphere. Aphasia can affect language comprehension, speaking, reading, and writing. The symptoms depend on where the damage occurs, and different patterns of impairment are often described as aphasia syndromes. In this video, I will cover several of the most common aphasia syndromes. While these syndromes are useful clinical descriptions, real patients don’t always fit neatly into one of these categories.
Broca’s aphasia is associated with damage to the frontal lobe, often in or near Broca’s area. People with Broca’s aphasia typically understand language relatively well, but they have difficulty producing language. Their speech is often slow, effortful, and limited to single words or short phrases.
Wernicke’s aphasia is typically linked to damage in the temporal lobe, often involving Wernicke’s area. In this syndrome, speech production remains fluent, but it may contain incorrect, confusing, or nonsensical words and phrases. People with Wernicke’s aphasia also often have difficulty understanding language.
Conduction aphasia is characterized by relatively fluent speech and fairly good comprehension, with a particular difficulty repeating words or phrases. It has classically been associated with damage to pathways connecting frontal and temporal language regions, especially a pathway called the arcuate fasciculus, although actual lesions can involve nearby language regions as well.
Global aphasia results from extensive damage to language areas in the dominant-hemisphere language network. It is linked to severe impairments in both speech production and language comprehension.
REFERENCES
Clark DG, Cummings JL. Aphasia. In: Brandt T, Caplan LR, Dichgans J, Diener HC, Kennard C, editors. Neurological Disorders. 2nd ed. San Diego (CA): Academic Press; 2003. p. 265-275. doi:10.1016/B978-012125831-3/50220-3.
National Institute on Deafness and Other Communication Disorders (NIDCD). Aphasia [Internet]. Bethesda (MD): National Institute on Deafness and Other Communication Disorders. Available from: nidcd.nih.gov/health/aphasia
Sheppard SM, Sebastian R. Diagnosing and managing post-stroke aphasia. Expert Rev Neurother. 2021 Feb;21(2):221-234. doi: 10.1080/14737175.2020.1855976. Epub 2020 Dec 10. PMID: 33231117; PMCID: PMC7880889.
đź“ť Pass your next test with my neuroscience videos!
I’m Marc, a university professor at Penn State, and I’m here to take you on a journey into the fascinating world of the brain. I created this channel to break down complex topics into easy-to-understand snippets—perfect for both students and curious minds alike. 📚
My goal is to make learning neuroscience fun and accessible. Whether you're a student looking to supplement your studies or simply eager to understand the basics of the brain, this channel is for you.
Hit subscribe and get to know your brain, one video at a time! đź§
Aphasia is a language disorder caused by damage to areas of the brain involved in producing or understanding language. In this video, I discuss several of the most common aphasia syndromes: Broca's aphasia, Wernicke's aphasia, conduction aphasia, and global aphasia.
🧠Take your learning further with my free, self-paced Introduction to Neuroscience course featuring my videos, articles, and hundreds of quiz questions: neuroscientificallychallenged.com/course
If you're looking for accessible and entertaining ways to learn more about the brain, check out my books:
đź“šYour Brain, Explained: What Neuroscience Reveals About Your Brain and its Quirks: amazon.com/dp/1473696569
đź“šBizarre: The Most Peculiar Cases of Human Behavior and What They Tell Us About How the Brain Works: amazon.com/dp/139980121X
TRANSCRIPT
Aphasia is a language disorder caused by damage to areas of the brain involved in producing or understanding language. It most often occurs after stroke, especially when the language-dominant cerebral hemisphere is affected, which for most people is the left cerebral hemisphere. Aphasia can affect language comprehension, speaking, reading, and writing. The symptoms depend on where the damage occurs, and different patterns of impairment are often described as aphasia syndromes. In this video, I will cover several of the most common aphasia syndromes. While these syndromes are useful clinical descriptions, real patients don’t always fit neatly into one of these categories.
Broca’s aphasia is associated with damage to the frontal lobe, often in or near Broca’s area. People with Broca’s aphasia typically understand language relatively well, but they have difficulty producing language. Their speech is often slow, effortful, and limited to single words or short phrases.
Wernicke’s aphasia is typically linked to damage in the temporal lobe, often involving Wernicke’s area. In this syndrome, speech production remains fluent, but it may contain incorrect, confusing, or nonsensical words and phrases. People with Wernicke’s aphasia also often have difficulty understanding language.
Conduction aphasia is characterized by relatively fluent speech and fairly good comprehension, with a particular difficulty repeating words or phrases. It has classically been associated with damage to pathways connecting frontal and temporal language regions, especially a pathway called the arcuate fasciculus, although actual lesions can involve nearby language regions as well.
Global aphasia results from extensive damage to language areas in the dominant-hemisphere language network. It is linked to severe impairments in both speech production and language comprehension.
REFERENCES
Clark DG, Cummings JL. Aphasia. In: Brandt T, Caplan LR, Dichgans J, Diener HC, Kennard C, editors. Neurological Disorders. 2nd ed. San Diego (CA): Academic Press; 2003. p. 265-275. doi:10.1016/B978-012125831-3/50220-3.
National Institute on Deafness and Other Communication Disorders (NIDCD). Aphasia [Internet]. Bethesda (MD): National Institute on Deafness and Other Communication Disorders. Available from: nidcd.nih.gov/health/aphasia
Sheppard SM, Sebastian R. Diagnosing and managing post-stroke aphasia. Expert Rev Neurother. 2021 Feb;21(2):221-234. doi: 10.1080/14737175.2020.1855976. Epub 2020 Dec 10. PMID: 33231117; PMCID: PMC7880889.
đź“ť Pass your next test with my neuroscience videos!
I’m Marc, a university professor at Penn State, and I’m here to take you on a journey into the fascinating world of the brain. I created this channel to break down complex topics into easy-to-understand snippets—perfect for both students and curious minds alike. 📚
My goal is to make learning neuroscience fun and accessible. Whether you're a student looking to supplement your studies or simply eager to understand the basics of the brain, this channel is for you.
Hit subscribe and get to know your brain, one video at a time! đź§
