This is a study of lexical processing in a 6-year-old whose spontaneous
output shows word-finding problems, phonological errors, and occa
sional semantic errors. In order to investigate the level(s) of processing
responsible for these errors, tasks tapping different stages of input and
output processing were carried out. The child's responses showed that
his errors were largely confined to output, and involved phonological
deviation from the target. Responses to different output tasks showed
similar types of errors, but some inconsistency in the treatment of
particular phonological or lexical targets. The implications for the
nature of the processing impairment and for intervention are discussed.
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