  This article details the results of analyses we conducted on the discourse of
schizophrenic patients, at the oral production (disfluences) and lexical
(part-of-speech and lemmas) levels. This study is part of a larger project,
which includes other levels of analyses (syntax and discourse). The obtained
results should help us rebut or identify new linguistic evidence participating
in the manifestation of a dysfunction at these different levels. The corpus
contains more than 375,000 words, its analysis therefore required that we use
Natural Language Processing (NLP) and lexicometric tools. In particular, we
processed disfluencies and parts-of-speech separately, which allowed us to
demonstrate that if schizophrenic patients do produce more disfluencies than
control, their lexical richness is not significatively different.
