Treinamento auditivo acusticamente controlado com vozes em dueto: desenvolvimento e eficácia

• Ano de defesa: 2019
• Autor(a) principal: Picinini, Tais De Azevedo [UNIFESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Paulo (UNIFESP)
• Palavras-chave em Português: Transtornos Da Audição; Música; Percepção Auditiva; Eletrofisiologia
• Link de acesso: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=7657587; https://repositorio.unifesp.br/handle/11600/59672

Objective: Develop a TAAC program with voices in duet and assess their effectiveness and clinical applicability. Methods: This is an interventional, longitudinal, prospective, uncontrolled clinical trial. For the creation of the program called Auditory Training With voices in duet, stimuli with sung a capella voice were used, considering the variation of the sound frequency with four female voices presented isolated and combined in a duet, using a song of public domain. Each voice was recorded on a Compact Disc (CD) channel to be displayed at sound levels that could change from the +20 to -20 ratio. The requested response was to illustrate graphically on a record sheet on each syllable heard whether the posterior syllable became sharper, more severe or remained the same as the previous syllable. Participants were 10 individuals (seven women) aged 19-36 years, right-handed individuals with altered auditory processing and normal audiometric thresholds attended at the neuroaudiology service for undergraduate students. Those with musical experience, two absences during the program and incomplete evaluations were excluded. The evaluated abilities were closing, deep figure in dichotic listening with syllables, ordering of brief and successive sounds that varied as far as frequency, and temporal resolution between pure tones. The P300, ABR with clique stimuli and FFR were performed. These procedures were repeated in three moments: pre, post and three months after the intervention closure. Results: A therapy tool was created whose stimuli were recorded voices of the song "Peixe Vivo" in the tone of G major in four voices. These stimuli were mixed and mastered in the Protools Program and recorded on a compact disc (CD) composed of five bands, presented by computer coupled to the audiometer of two channels in 10 individuals to verify the effectiveness of its use. At the end of the program it was possible to verify behavioral and electrophysiological changes with statistical significance. It emphasizes the ability of figure-ground in dichotic listening with syllables that improved and normalized in the majority of the individuals in the free attention and was maintained after three months of intervention, the number of errors in the left listening listened decreased; the temporal ordering ability of short and successive sounds of different frequencies that improved and normalized in the tasks of humming and appointment at the end of the program and was maintained after three months; the ABR which showed decreased interpeak I-III latency to the left ear and decreased number of altered and that change was maintained after 3 months and in the right ear decreased the interpeak IV and III-V and remained after three months and the P300 that increased the amplitude of the left ear and remained. In FFR, E-wave latency decreased in post-training. but was not maintained after 3 months of completion of the program. Conclusion: An auditory training program with voices in duet was created and its effectiveness verified after a maximum of 15 hours of intervention. There was improvement in the auditory abilities of temporal order, figure-ground and closure with evidences in auditory evoked potentials. For future use it is recommended to use algorithms (software) to ai in the application of the program.