What Is Aphasia?

Aphasia is one of the most devastating consequences of stroke — and one of the least understood. A person with aphasia may not be able to speak, read, or write — but their intelligence, personality, and emotional life remain intact. Understanding this changes everything about how you communicate.

Section 01

What Aphasia Is — and What It Is Not

Aphasia is an acquired language disorder caused by damage to the language areas of the brain — typically the left hemisphere. It affects speaking, understanding, reading, and writing in varying combinations and severities.

💡 The most important thing to understand about aphasia

Aphasia affects language — not intelligence. A person with severe aphasia who cannot say a single word may have fully intact thinking, personality, humor, emotional experience, and understanding of their situation. Treating a person with aphasia as intellectually diminished — speaking in a childlike way, talking about them in the third person in their presence, excluding them from decisions — is both wrong and deeply harmful. The person is fully present. The language pathway is damaged.

Section 02

Types of Aphasia

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Broca's aphasia (expressive)

Difficulty producing speech — the person understands what is said but struggles to form words. Speech is effortful and telegraphic ("want... water"). Comprehension is relatively preserved. They know what they want to say but cannot get the words out.

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Wernicke's aphasia (receptive)

Difficulty understanding language — the person may speak fluently but produce words that don't make sense. They cannot understand what is said to them. Families are often confused hearing fluent-sounding speech that is unintelligible.

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Global aphasia

The most severe form — affecting both expression and comprehension significantly. Communication may only occur through facial expression, gesture, and vocalization. Non-verbal communication becomes the primary channel.

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Anomic aphasia

Difficulty finding specific words — particularly nouns. "Hand me the... the thing you... the..." The mildest and most common form as aphasia resolves.

Section 03

Dysarthria — Different from Aphasia

⚠ Dysarthria vs. aphasia

Dysarthria is a motor speech disorder — the muscles for speech production are weak or poorly coordinated, making speech slurred or difficult to understand. Unlike aphasia, language itself (comprehension, word-finding, grammar) is intact. A person with dysarthria can read and write normally. Speech sounds impaired but language is not. This distinction matters for communication strategies.

Section 04

The Emotional Experience of Aphasia

They know what they want to say: The failure is in retrieval and production — not in the thought itself. Their frustration at word-finding failure is real and appropriate.
They can read your facial expression: Even with severe comprehension aphasia, emotional tone and facial expression are often preserved. Your patience and warmth communicate even when words don't.
Connection is still possible: Shared presence, touch, music, and facial expression create genuine connection when language fails entirely.

Section 05

Creating an Aphasia-Friendly Environment

✓ Communication-supportive environment

Reduce background noise before important communication
Face the person directly and maintain eye contact
Speak at a normal rate — not loudly or in a childlike way
Allow extended time for responses — pressure worsens aphasia
Never complete sentences unless invited
Acknowledge the emotion even when words don't come