Analysis of the components of Frequency-Following Response in phonological disorders. (July 2019)

• Record Type: Journal Article
• Authors: Ferreira, Laís; Gubiani, Marileda Barichello; Keske-Soares, Márcia; Skarzynski, Piotr H.; Sanfins, Milaine Dominici; Biaggio, Eliara Pinto Vieira
• Is Part Of: International journal of pediatric otorhinolaryngology. Volume 122(2019:Jul.)
• Page Start: 47
• Page End: 51
• Publication Date: 2019-07
• Subjects: Auditory evoked potentials -- Speech sound disorder -- Speech perception -- Auditory perception -- Child; Otolaryngology -- Periodicals; Pediatrics -- Periodicals; Otolaryngology -- Periodicals; Pediatrics -- Periodicals; Oto-rhino-laryngologie -- Périodiques; Pédiatrie -- Périodiques; 618.9209751
• DOI: 10.1016/j.ijporl.2019.03.035
• Languages: English
• ISSNs: 0165-5876

Abstract

Abstract: Introduction: When identifying the auditory performance of children with phonological disorders, researchers assume that this population has normal peripheral hearing. However, responses at more central levels might be atypical. Objective: To investigate the effect of phonological disorders on Frequency-Following Responses (FFRs) in the time domain. Methods: Participants were 60 subjects, aged 5 to 8:11 years, divided into two groups: a control group, composed of 30 subjects with normal language skills; and a study group composed of 30 subjects diagnosed with Phonological Disorder (PD). All subjects were tested for Frequency-Following Responses. Results: In the group of children with PD there was an increase in the latency of all FFR components, with a significant statistical difference for components V (p = 0.015); A (<0.001); C (0.022); F (<0.001); and O (0.001). There was also a reduction in the Slope measure in the group with PD (p = 0.004). Conclusion: The FFR responses are altered in children with PD. This suggests that children with PD present a disorganization in the neural coding of complex sounds. This could compromise specially the development of linguistic/phonological abilities, which can reflect in daily communication.