The purpose of this study is to verify how fluent speakers of Brazilian Portuguese perceive the expression of certainty and doubt attitudes on stutterers' speech. For such, data was collected in two moments: 1. speech material; and 2. perceptive test. Two groups participated in the first moment: 12 stuttering people (EG) and 12 non-stuttering people (CG). These participants recorded two utterances in each of the three forms studied (neutral, certainty and doubt). For the perceptive test, 60 judges have participated: 30 judged CG's utterances and 30 judged EG's utterances. 1,440 responses were recorded for CG and 1,080 for EG. The statistical test of an affirmative over one and two proportions was used, with 95% significance. The results showed a statistically significant difference between the results of CG and EG judges: judges recognize attitudes expressed by non-stuttering people better than those expressed by stuttering ones.
Perceptive test; Prosody; Attitude; Stuttering
