Answers are grounded in this paper and cite their sources.
Two split-brain patients who differ in their right hemisphere language capacity were tested on a variety of simple cognitive tasks. Both isolated right hemispheres performed poorly on most tests. The results suggest that the presence of language in the right hemisphere, a brain system that ordinarily does not possess such competence, need not necessarily confer the full complement of cognitive skills associated with the language processing skills of the left hemisphere.
No takes yet. Share an insight, caveat, or question.
Gazzaniga et al. (1984) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: