A specific linguistic ability.

A young man with diagnosed hydrocephalic brain injury was found to be an able linguist. His ability to translate into English from French, German, and Spanish was confirmed to be at a high level, and his capacity to express thoughts and describe scenes in these languages was also verified. A set of translations of the Peabody Picture Vocabulary Test was prepared in French, German, and Spanish, and IQs were derived in each language. The subject's performance intelligence was tested separately and found to be low, especially in relation to spatial reasoning. The subject's linguistic achievements were discussed in terms of an IQ-independent linguistic talent.