phonemic paraphasia
Pronunciation: foh-NEE-mik pair-uh-FAY-zhuh
Speech error involving substitution, addition, or omission of speech sounds, typically seen in conduction aphasia or Broca's aphasia.
Full Definition
Phonemic paraphasia refers to speech errors characterized by the substitution, addition, omission, or transposition of phonemes (speech sounds) within words. Unlike semantic paraphasias which involve word-level errors, phonemic paraphasias affect the sound structure of words, resulting in nonwords or real words that differ from the intended target. For example, 'cat' might be produced as 'gat' or 'scat.' This phenomenon is commonly observed in conduction aphasia and Broca's aphasia, reflecting dysfunction in phonological processing networks. The pattern and frequency of phonemic paraphasias provide important diagnostic information about the type and severity of aphasia. Patients are often aware of these errors and may attempt self-correction.
Usage
Usage note: Distinguish from semantic paraphasias (word-level errors) and document specific sound substitution patterns.
In Context
- "The patient exhibited frequent phonemic paraphasias, substituting 'pable' for 'table' during naming tasks." — Speech-language pathology evaluation
- "Phonemic paraphasias were more prominent in spontaneous speech than in repetition, consistent with conduction aphasia." — Neuropsychological assessment