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CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2018; 22(01): 023-032
DOI: 10.1055/s-0037-1600121
Original Research
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Computerized Auditory Training in Students: Electrophysiological and Subjective Analysis of Therapeutic Effectiveness

Ândrea de Melo
1   Audiologist, Master Student in Human Communication Disorders, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS, Brazil
,
Carolina Lisbôa Mezzomo
2   Department of Speech Pathology/Audiology, Graduate Program in Human Communication Disorders, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS, Brazil
,
Michele Vargas Garcia
2   Department of Speech Pathology/Audiology, Graduate Program in Human Communication Disorders, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS, Brazil
,
Eliara Pinto Vieira Biaggio
2   Department of Speech Pathology/Audiology, Graduate Program in Human Communication Disorders, Universidade Federal de Santa Maria, UFSM, Santa Maria, RS, Brazil
› Author Affiliations
Further Information

Publication History

26 August 2016

02 January 2017

Publication Date:
28 April 2017 (online)

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Abstract

Introduction Computerized auditory training (CAT) has been building a good reputation in the stimulation of auditory abilities in cases of auditory processing disorder (APD).

Objective To measure the effects of CAT in students with APD, with typical or atypical phonological acquisition, through electrophysiological and subjective measures, correlating them pre- and post-therapy.

Methods The sample for this study includes14 children with APD, subdivided into children with APD and typical phonological acquisition (G1), and children with APD and atypical phonological acquisition (G2). Phonological evaluation of children (PEC), long latency auditory evoked potential (LLAEP) and scale of auditory behaviors (SAB) were conducted to help with the composition of the groups and with the therapeutic intervention. The therapeutic intervention was performed using the software Escuta Ativa (CTS Informática, Pato Branco, Brazil) in 12 sessions of 30 minutes, twice a week. For data analysis, the appropriate statistical tests were used.

Results A decrease in the latency of negative wave N2 and the positive wave P3 in the left ear in G1, and a decrease of P2 in the right ear in G2 were observed. In the analysis comparing the pre- and post-CAT groups, there was a significant difference in P1 latency in the left ear and P2 latency in the right ear, pre-intervention. Furthermore, eight children had an absence of the P3 wave, pre-CAT, but after the intervention, all of them presented the P3 wave. There were changes in the SAB score pre- and post-CAT in both groups. The presence of correlation between the scale and some LLAEP components was observed.

Conclusion The CAT produced an electrophysiological modification, which became evident in the effects of the effects of neural plasticity after CAT. The SAB proved to be useful in measuring the therapeutic effects of the intervention. Moreover, there were behavioral changes in the SAB (higher scores) and correlation with LLAEP.

Keywords

auditory perception - electrophysiology - speech disorders - acoustic stimulation - software
 

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