Broca's Aphasia, Its Symptoms, and How It Is Treated

This type of aphasia affects the rhythym of speech

Broca’s aphasia is a condition characterized by a lack of fluency of speech. People with Broca's aphasia usually have preserved language comprehension.

Aphasia is a term used to describe a loss of the ability to communicate. It is caused by damage to the language centers of the brain.

This article discusses Broca's aphasia and its symptoms, causes, and treatment.

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Symptoms of Broca's Aphasia

Broca's aphasia, also known as motor aphasia, is a specific speech and language problem. It is characterized by choppy speech and the inability to form complete sentences.

If you have been diagnosed with Broca's aphasia, you might notice that your speech lacks normal fluency or rhythm and that you have a hesitant, interrupted speech pattern. One of the characteristics of Broca's aphasia is that language comprehension is often normal or nearly normal.

If you have Broca's aphasia you may experience the following symptoms:

  • Difficulty forming complete sentences
  • Speech that lacks normal rhythm
  • Pausing excessively when trying to speak
  • Omission of pronouns, articles, and conjunctions when speaking
  • Mutism
  • Preserved ability to understand speech, to follow commands, and to read simple words
  • Difficulty writing
  • Impaired ability to read long passages, especially out loud

Aphasia, the loss of language ability, is a language problem acquired after normal language was already established. It is described as an acquired language deficit. This differs from developmental language deficits, which prevent a person from developing normal language abilities in childhood.

It has been estimated that about one million people in the United States suffer from aphasia. A stroke is among the most common causes.

What Causes Broca's Aphasia?

Broca's aphasia is the result of damage to a specific language region in the frontal lobe of the brain called Broca's area. It is not a problem with the muscles, the throat, or the mouth.

Broca's area is one of several language areas of the brain. The language areas of the brain are all located near each other in the dominant hemisphere of the brain, which is typically the side opposite a person's dominant hand. Broca's area functions to help you put words together fluently to speak more than one word at a time, forming complete sentences.

Broca’s aphasia, like other types of aphasia, is most common after a stroke affecting Broca's area, but it can result from any of the following conditions as well:

What is the difference between Broca's and Wernicke's aphasia?

Broca's aphasia and Wernicke's aphasia both affect the way a person speaks. However, while a person with Broca's aphasia has trouble forming complete sentences, a person with Wernicke's aphasia can form complete sentences but may jumble their words. People with Broca's aphasia typically realize that they have speaking difficulties, while those with Wernicke's aphasia are usually unaware of their spoken mistakes.

How Broca's Aphasia Is Diagnosed

Aphasia is usually diagnosed during a medical evaluation. If you have aphasia, your medical team will recognize that your pattern of speech is impaired during your evaluation.

When your healthcare providers perform detailed and targeted aphasia diagnostic testing, they will ask you to show whether you understand what others are saying, repeat phrases and words, read, write words, and name objects. These tasks help your medical team identify your specific type of aphasia.

You might see a speech-language therapist for a consultation. Expect the speech specialist to carefully examine your speech pattern and the way you form words during the evaluation.

You may also need to have a brain CT or a brain MRI to determine whether you have had a stroke, a brain infection, an injury from head trauma, or a tumor.

Treatment

Some people who have Broca's aphasia experience a degree of recovery without treatment or therapy. Usually, speech exercises and tailored therapy sessions are beneficial because your ability to understand and cooperate is not affected by Broca's aphasia.

Your speech therapist will likely prescribe a recommendation for therapy to improve your ability to speak. Some therapy strategies include listening to a recording of yourself speaking, repeating and rehearsing phrases, and reading out loud.

In addition to speech therapy, you will likely also need treatment for the cause of your aphasia, whether it is a stroke, a brain tumor, an infection, or a head injury.

Caregivers and Aphasia Treatment

Recent treatment guidelines from the American Heart Association and American Stroke Association note that aphasia treatments should focus on more than just the speech disability itself.

Guidelines recommend that treatment include efforts to maximize quality of life and participation in activities of daily living, and also say that family and other caregivers should be involved in the process. Family members can have a significant impact on creating successful communication exchanges.

Summary

One of the hallmarks of Broca's aphasia is that people are still able to understand speech and are typically aware of the problem. While this is frustrating for anyone who is living with Broca's aphasia, this characteristic helps a great deal in terms of recovery.

If you or your loved one has Broca's aphasia, the preserved ability to understand can make it much easier to actively participate in therapy than with other types of aphasia.

7 Sources
Verywell Health 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.
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  2. National Institute on Deafness and Other Communication Disorders. Aphasia.

  3. Johns Hopkins Medicine Health Library. Aphasia.

  4. National Aphasia Association. Broca’s (expressive) aphasia.

  5. Fridriksson J, Fillmore P, Guo D, Rorden C. Chronic Broca's aphasia is caused by damage to Broca's and Wernicke's areasCereb Cortex. 2015;25(12):4689-96. doi:10.1093/cercor/bhu152

  6. National Institute on Deafness and Other Communication Disorders. Aphasia.

  7. Winstein CJ, Stein J, Arena R, et al. Guidelines for adult stroke rehabilitation and recovery: A guideline for healthcare professionals from the American Heart Association/American Stroke Association [published correction appears in Stroke. 2017 Feb;48(2):e78] [published correction appears in Stroke. 2017 Dec;48(12 ):e369]. Stroke. 2016;47(6):e98-e169. doi:10.1161/STR.0000000000000098

Additional Reading
jose vega, md, phd

By Jose Vega MD, PhD
Jose Vega MD, PhD, is a board-certified neurologist and published researcher specializing in stroke.