A handwritten notebook with a pen resting on it, representing communication through writing for someone with aphasia.

Aphasia for Caregivers: Understanding Wernicke's & Broca's

When the Words Won't Come: Understanding Aphasia for Caregivers and Families

My husband Rob writes better than he speaks.

That's not a metaphor. It's a clinical fact about how his brain works now. Put a pen in his hand and he can tell you exactly what he means. Put him in front of a hotel front desk clerk asking a question he wasn't expecting, and the words stop coming.

For years, I didn't have a word for what was happening. I thought he was tired. I thought he was distracted. I thought maybe he just didn't want to talk to whoever was asking. The truth — once a neurologist gave it a name — was simpler and harder all at once.

The word is aphasia.

And if you love someone with a brain injury, a stroke history, dementia, or a neurodegenerative condition, you've probably already met it. You just might not have known what to call it.

What aphasia is — and what it isn't

Aphasia is a language disorder caused by damage to the parts of the brain that handle speech and language. According to the National Library of Medicine's clinical reference (StatPearls), aphasia results from damage to the brain regions responsible for producing and understanding language — most often the dominant hemisphere's frontal, temporal, and parietal lobes.

Here's what aphasia is not:

  • It is not a loss of intelligence. Rob is just as sharp as he ever was. The information is in there.
  • It is not a hearing problem. He hears you fine.
  • It is not stubbornness, distraction, or a personality change.
  • It is not the same as dysarthria (which is a motor speech problem — slurring or weakness in the muscles that produce speech). Aphasia is about language itself, not the muscles that deliver it.

Aphasia is a breakdown somewhere in the pipeline between thought and word. Where the breakdown happens determines what kind of aphasia a person has.

The two big categories every caregiver should know

There are several subtypes of aphasia, but for caregivers the two foundational categories are Broca's aphasia and Wernicke's aphasia. Knowing the difference changes how you communicate, how you advocate, and how you keep your patience when the words won't come.

Broca's aphasia (expressive aphasia)

Damage to Broca's area — in the frontal lobe — causes expressive aphasia. The person knows what they want to say. They understand you. They just can't get the words out, or the words come out slowly, effortfully, and in short fragments. Grammar gets stripped down. "Want coffee" instead of "I would like a cup of coffee."

People with Broca's aphasia are usually painfully aware of the gap between what they mean and what they can produce. Which means the frustration is enormous — and visible.

Wernicke's aphasia (receptive aphasia)

Damage to Wernicke's area — in the temporal lobe, behind and below the ear in the dominant hemisphere — causes receptive aphasia. This is the one that confuses families the most, because the person can speak fluently. The words come easily. The rhythm and pace sound normal.

But the content doesn't always make sense.

According to the Cleveland Clinic, Wernicke's aphasia is characterized by fluent speech that "doesn't make sense," along with difficulty reading, writing, and understanding what others are saying. The person may use real words in the wrong place, substitute one word for another that sounds similar, or invent words entirely (these are called neologisms).

The hardest part for families: people with Wernicke's aphasia often don't realize their speech isn't making sense. The clinical term for that is anosognosia — a lack of awareness of one's own deficit. They may keep talking, confidently and fluently, while everyone around them is trying to figure out what they mean.

A quick note on the word itself

"Wernicke's" is one of those medical words that almost nobody pronounces right the first time. It's named for Carl Wernicke, a German neurologist who described the condition in a small book published in 1874. He was 26 years old at the time.

Because the name is German, the W is pronounced like a V, and the final "e" is a soft "uh" sound — roughly VER-nih-kuh (some clinicians say VER-nih-kee, which is the Anglicized version you'll hear more often in the US). Once you hear it pronounced correctly, you can't un-hear the American version. Don't worry about getting it perfect — most healthcare professionals won't blink either way. But if you want to honor the man whose 150-year-old observation gave us the language to describe what's happening in your loved one's brain, the German version is the one.

According to a 2024 historical review in World Neurosurgery, Wernicke identified the posterior segment of the superior temporal gyrus as essential for language comprehension — work that became the foundation for everything we now know about how the brain processes language. He died at 57 from a bicycle accident in the Thüringer Wald forest. Most people who use his name every day in clinics have no idea who he was.

What causes aphasia

Aphasia can be caused by anything that damages the language regions of the brain. The most common causes include:

  • Stroke — by far the leading cause. An ischemic stroke involving the middle cerebral artery can damage Wernicke's area directly.
  • Traumatic brain injury — including the kind of impact-related TBI common in combat veterans, contact-sports athletes, and survivors of car accidents or falls.
  • Brain tumors in or near the language regions.
  • Central nervous system infections like meningitis or encephalitis.
  • Degenerative brain conditions — Alzheimer's disease, frontotemporal dementia, Lewy body dementia, and primary progressive aphasia. In these cases, aphasia often comes on gradually rather than suddenly.

In Rob's case, the source is cumulative impact-related TBI from his Special Forces career — the kind of repeated brain trauma now linked to chronic traumatic encephalopathy (CTE), Parkinsonism, and a constellation of cognitive and language symptoms that don't appear all at once and don't go away.

What aphasia looks like in real life

Clinical definitions are useful. They are not enough.

Here is what aphasia looks like in our house, in case it helps you recognize what you're seeing in yours:

  • He starts a sentence with confidence and then stops, mid-thought, because the next word disappeared.
  • He substitutes a word that sounds similar to the one he meant. "Pass me the…" — long pause — "the cold one" (meaning the milk).
  • He writes me a perfectly clear text message about something he could not have said out loud at the same level of detail.
  • He gets quiet in groups. Not because he isn't engaged — because the speed of the conversation is faster than his retrieval system can keep up with.
  • He gets visibly tired after social events in a way that doesn't match the physical effort. That is language fatigue, and it is real.
  • On bad days — when he's tired, in pain, or in a new environment — everything is harder. On good days, you might not notice anything at all.

That last point matters. Aphasia is not a fixed deficit. It fluctuates. The same person who couldn't find a single word at the hotel check-in counter can have a long, fluent conversation with his oldest friend an hour later in a quiet living room. This is not him "trying harder." This is his brain responding to the cognitive cost of the environment.

How to communicate with someone who has aphasia

This is the section caregivers actually need. Save it. Print it. Hand it to a family member who keeps doing the wrong things at Thanksgiving.

  1. Slow down. Don't shout. Aphasia is not deafness. Speaking louder doesn't help. Speaking slightly slower, with natural pauses, gives the brain time to process.
  2. Use shorter sentences and one question at a time. "Do you want the king or the queen bed?" is two questions stacked. "King bed?" — pause — "Or queen?" gives the brain a chance to answer one before answering the other.
  3. Give them time. Resist the urge to finish their sentence. The pause feels long to you. It feels longer to them. But filling it for them takes something away. Wait. Count to ten in your head if you have to.
  4. Use yes/no questions when possible. "Are you hungry?" is easier than "What do you want for dinner?" Open-ended questions require word retrieval; closed-ended questions require a single confirmation.
  5. Offer choices. "Soup or sandwich?" is easier than "What sounds good?" Concrete options reduce the cognitive load.
  6. Use writing, gestures, and pictures. If your person writes better than they speak (like Rob), keep a pen and notebook handy. Pointing, gesturing, and showing pictures are all legitimate communication, not lesser versions of it.
  7. Stay calm when they get stuck. Your nervous system talks to theirs. If you tense up, they will too — and stress makes aphasia worse, not better. A 2015 review in the Journal of Communication Disorders found that "impairment in the ability to successfully communicate could be a significant source of stress to individuals with aphasia." Translation: not being able to find the word is itself a stressor that makes finding the word even harder. Your calm presence is part of the treatment.
  8. Tell strangers — quickly, without making a production of it. "My husband has a brain injury and may need a moment to find his words" changes the dynamic immediately. Most people are kinder than you expect once they have the information.
  9. Don't pretend you understood when you didn't. If the sentence didn't make sense, gently say so. "I want to make sure I got that — did you mean X or Y?" is respectful. Nodding along when you didn't understand is what eventually breaks trust.
  10. Acknowledge the effort, not just the outcome. Communication is work now. A small "I know that was hard, thank you for telling me" goes further than you think.

What to ask the medical team

If aphasia is new to your family, here are the questions worth asking:

  • What type of aphasia is this (Broca's, Wernicke's, global, anomic, conduction, primary progressive, other)?
  • What caused it, and is the underlying cause stable, improving, or progressive?
  • Have we been referred to a speech-language pathologist (SLP)? An SLP is the specialist who diagnoses and treats aphasia — not a neurologist alone, not a primary care doctor.
  • Is there a structured therapy plan, and what's the expected trajectory?
  • Are there communication tools or apps that would help us at home?
  • What signs would tell us the aphasia is getting worse — and when should we call?

Aphasia treatment is real, evidence-based, and works. Recovery and improvement are possible even years after the initial injury. The biggest predictor of outcomes is consistent, skilled speech therapy and a communication partner — that's you — who knows what they're doing.

A word about the caregiver

If you're the one reading this because someone you love has aphasia, I want to say this directly: this is harder than people who haven't lived it understand.

You are translating, all day, every day. You are watching for the half-second pause that means "help me find this word." You are interpreting at appointments, on phone calls, at the pharmacy, at the airport. You are the bridge between the person you love and a world that moves too fast for their brain to keep up.

That is real labor. Name it. Don't apologize for being tired.

And don't let anyone tell you that what you're doing isn't medicine. Skilled communication partnership is one of the most well-documented variables in aphasia recovery. You are doing therapy every time you slow down and wait for the word.

The companion piece

If you haven't read it yet, this article is the partner to Beyond One Hour: Why We Drive Instead of Fly When You Love Someone With a Brain Injury — the story of the Phoenix trip and what travel actually costs a brain injury survivor's nervous system. Aphasia plus an unfamiliar environment plus a stranger asking three questions in five seconds is the recipe for the lobby moment I wrote about there. Both pieces work together.

Get more like this

I write about this every week in our newsletter, From the Nest. Rob writes a section in his own words — because he writes better than he speaks, and the newsletter gives him a place to be heard the way he is. I write the translation. We cite the science. We don't sugarcoat any of it.

Subscribe here — Wednesday mornings, free, from a caregiver who's living it.

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Robbins Nest Alliance is a 501(c)(3) nonprofit (EIN 39-2763662). We educate caregivers and families navigating brain injury, dementia, Parkinson's, CTE, PTSD, and FND. We have no paid staff. Every dollar funds free, peer-reviewed education for families like ours.

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Peer-reviewed and clinical sources cited in this article

  1. Acharya, A. B., & Wroten, M. (2024). Wernicke Aphasia. StatPearls [Internet]. National Library of Medicine. NCBI Bookshelf: NBK441951
  2. Pillai, J. A., & Bonner-Jackson, A. (2024). Carl Wernicke of the Wernicke Area: A Historical Review. World Neurosurgery. PubMed: 38417618
  3. Cleveland Clinic. Wernicke's (Receptive) Aphasia: Symptoms & Treatment. Medically reviewed, last updated July 2024. Cleveland Clinic Health Library
  4. Cahana-Amitay, D., Albert, M. L., et al. (2015). Aphasia and the neuropsychobiology of stress. Journal of Communication Disorders. PubMed: 26299187
  5. Britannica. Carl Wernicke biography. Britannica

Heather Kendrella-Robbins is the founder of Robbins Nest Alliance, a 501(c)(3) nonprofit, and the full-time caregiver for her husband Rob, a Special Forces veteran living with Parkinsonism, aphasia, FND, and probable CTE. This article is educational and is not medical advice. Aphasia diagnosis and treatment require evaluation by a qualified speech-language pathologist working in coordination with your medical team.

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