Which of the following is a sign of a language processing deficit?

Aphasia is a language processing deficit characterized by an impaired ability to communicate effectively. This can manifest in various forms, such as difficulties with speaking, understanding language, reading, or writing. Children or individuals experiencing aphasia may struggle to find the right words, construct sentences, or may have difficulty understanding what others are saying. This condition highlights a significant disconnect between cognitive language processing and effective communication.

In contrast, excessive curiosity reflects a desire to learn and engage with the environment, advanced vocabulary use indicates strong language development skills, and rapid speech development signifies a healthy progression in language acquisition. These traits do not point to deficits but rather to typical or advanced language learning behaviors. Thus, aphasia specifically identifies a deficiency in the processing of language, making it the clear indicator of a language processing deficit.