High Quality Content by WIKIPEDIA articles! Paraphasia is a subset of aphasia, referring to “the production of unintended syllables, words, or phrases during the effort to speak,” first defined in 1983. It is most common in patients with fluent forms of aphasia, and comes in three different forms: phonological or literal, neologistic, and verbal. Paraphasias can affect metrical information, segmental information, number of syllables, or both. Some paraphasias preserve the meter without segmentation, and some do the opposite. However, most paraphasias affect both partially.