Abstract
The disconnected right hemisphere (RH) has a rich semantic system, limited phonology, and poor syntax. It has a large auditoryvocabulary and a smaller reading vocabulary, but a little or no writing and speech. Further, recent studies show that when resources are taxed, word recognition in the disconnected RH can be sensitive to wordness, word length, word frequency, and word concreteness, but not to the regularity of grapheme–phoneme correspondence. But even though it has no assembled phonology, the disconnected RH can sometimes demonstrate addressed phonological access to speech. In fact, some aphasic symptoms are attributable to RH contribution when left-hemisphere (LH) inhibition is removed, notably semantic paralexias in deep dyslexia, miming without naming in optic aphasia, and covert reading in pure alexia. Converging evidence suggests that language performance in the normal RH can borrow resources from the LH and can surpass the capacity of the disconnected RH, including some competence for grammar and for assembled phonology.
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