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Auditory- perceptual performance of children with and without phonological disorder in the sonorant class.

Grant number: 22/03845-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): July 01, 2022
Effective date (End): December 31, 2022
Field of knowledge:Linguistics, Literature and Arts - Linguistics - Linguistic Theory and Analysis
Principal researcher:Larissa Cristina Berti
Grantee:Isabella Rodrigues Domingues
Home Institution: Faculdade de Filosofia e Ciências (FFC). Universidade Estadual Paulista (UNESP). Campus de Marília. Marília , SP, Brazil

Abstract

This study aimed (a) to compare the perceptual performance of children with and without Phonological Disorder (PD) in an identification task involving the sonorant class of the Brazilian Portuguese; and (b) to identify if the auditory-perceptual performance is dependent on the phonic class. Based on the fact that PD would affect the perception of the phonological contrasts, it is hypothesized: (a) less accurate and more laborious perceptual performance in children with PD when compared to their typical peers; (b) less accurate and more laborious performance for liquids in both groups. 63 children aged 4 to 8 years will participate in this study, divided into two groups: (EG) experimental group with 42 children diagnosed with PD and, (CG) control group with 21 children with typical speech development matched by age and gender to the experimental group, considering a 2:1 ratio. The experimental procedure will consist of application of the auditory-perceptual identification test, PERCEFAL- proposed by Berti (2017), focusing on the sonorant class and using the PERCEVAL software- Perception Evaluation Auditive and Visuelle (André et al, 2009). The experimental task consists of an identification test, in which participants will listen to an auditory stimulus and must indicate the perceived phoneme among two options. The criteria adopted for analysis will be: 1) auditory-perceptual accuracy, represented in percentage of errors, correct answers and non-response and 2) reaction time of errors and correct answers. It is hoped that the results obtained will contribute to a better understanding about perception of the sonorant class and also support therapeutic strategies in the rehabilitation process of children with PD.

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