Acquired Language Disorders

Aphasia

Understanding Aphasia

Aphasia is a language disorder caused by damage to the language-controlling centers of the brain, typically in the left hemisphere. It impacts your ability to communicate through speaking, understanding, reading, writing, or signing.

Aphasia does not affect a person's intelligence or thinking skills, but it makes communicating thoughts and ideas difficult. The severity and recovery vary widely based on the cause and extent of the brain damage.


Causes

Aphasia is most frequently caused by a stroke. Other potential causes include:


Signs and Symptoms

A person with Aphasia may experience difficulty in one or more areas of communication:

Expressing

Trouble finding words (tip-of-the-tongue moments), using wrong words (e.g., related words or made-up words), switching sounds within words, or having trouble forming complete sentences.

Understanding

Difficulty following fast speech, understanding complex directions, comprehending language in noisy settings, or interpreting non-literal language like jokes or sarcasm.

Reading & Writing

Problems reading signs, spelling words, writing sentences, or managing numbers/math (e.g., telling time or counting money).


Diagnosis and Treatment by an SLP

Evaluation

The SLP will test your ability to understand words and directions, produce spoken and written language, and identify alternative methods of communication (like gestures or drawing). 

Treatment

Aphasia treatment focuses on recovering lost language skills and developing compensatory strategies to improve communication effectiveness.


American Speech-Language-Hearing Association. (2025). Aphasia. https://www.asha.org/URL