Aphasia is an acquired communication disorder that impairs a person's ability to process and use language. Unlike developmental language disorders, aphasia occurs after the brain has already developed normal language capabilities, typically resulting from damage to the language centers of the brain—most commonly the left hemisphere where Broca's area (responsible for speech production) and Wernicke's area (responsible for language comprehension) are located. When traumatic brain injury occurs, the sudden impact can cause bruising, bleeding, swelling, or tearing of brain tissue in these critical language regions, disrupting the neural pathways that allow us to communicate.
The severity and type of aphasia depend on the location and extent of brain damage. In California personal injury cases, we frequently see aphasia resulting from high-impact collisions such as car accidents, truck accidents, motorcycle crashes, and pedestrian accidents where the victim's head strikes a hard surface or experiences rapid acceleration-deceleration forces. The brain injury may be focal (concentrated in one area) or diffuse (spread across multiple regions), with diffuse axonal injury being particularly likely to cause widespread communication deficits.
Medical documentation is crucial in aphasia cases. Neuroimaging studies like MRI and CT scans can identify the specific brain regions affected, while speech-language pathology assessments quantify the functional impact on communication abilities. These objective medical findings form the foundation of your legal claim, demonstrating both causation (that the accident caused the brain injury) and damages (the extent of your communication impairment and its impact on your life).