Primary progressive aphasia (PPA) is a neurological condition that causes an individual's language capabilities to become progressively more impaired. Most forms of aphasia are caused by brain injury or stroke, but primary progressive aphasia is related to neurodegenerative illness. It's seen with diseases like frontotemporal lobar degeneration and Alzheimer's disease. The condition occurs when brain tissue related to language and speech deteriorates. The presentation varies between patients, but there are some characteristic signs of the condition.
Difficulty Comprehending Language
Individuals with primary progressive aphasia may have difficulty comprehending language. This symptom occurs when the semantic portion of the brain is affected. In the semantic variety of PPA, patients may have trouble comprehending written or spoken language. It's especially difficult to comprehend or remember the meanings of singular words. In addition to having trouble remembering the definition of a written or spoken word, individuals with this condition may have trouble remembering the names of objects or words to describe them.
It's important to note there are three kinds of primary progressive aphasia, with semantic being just one. If multiple language-processing areas of the brain are affected, patients might have symptoms of multiple types. But a difficulty with language comprehension doesn't present in every patient with this condition.