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The efficacy of acoustically controlled auditory training in elderly with auditory processing disorder

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Aline Albuquerque Morais
Total Authors: 1
Document type: Master's Dissertation
Press: São Paulo.
Institution: Universidade de São Paulo (USP). Faculdade de Medicina (FM/SBD)
Defense date:
Examining board members:
Eliane Schochat; Leticia Lessa Mansur; Liliane Desgualdo Pereira
Advisor: Eliane Schochat

Introduction: In the hearing system, changes from aging result in the difficulty that the elderly have understanding speech, affecting their communication abilities and their social participation in the community, which can lead to a decrease of life quality in this group of people. The auditory training is an intervention procedure based on neuroplasticity that aims improving hearing abilities of individuals with auditory processing disorder (APD). This method has been used in the auditory rehab of elderly and, through behavioral and electrophysiological measures, reveals itself as an effective tool for optimizing the processing of speech contributing for an aging process with life quality. Purpose: Verify the efficacy of an acoustically controlled auditory training program (ACAT) in elderly patients with APD using behavioral and electrophysiological measures. Method: Sixteen elderly (14 women, two men) with APD, who have performed an initial evaluation (1), consisting of behavioral and electrophysiological tests of auditory processing, were divided into two groups: GP (n = 8) those who were submitted to a placebo training and GSI (n = 8) the one\'s not submitted to any intervention. After 12 weeks the individuals were submitted to the tests again (evaluation 2 - pre ACAT). Then, all of them were submitted to ACAT and, after 12 weeks (8 training), they were submitted to the final evaluation (3 - post ACAT). Results: There was no significant difference in the various analyses between evaluations 1 and 2, both in the behavioral tests as for the P300, discarding the presence of placebo effects and test-retest. Comparing the evaluations 2 and 3, a significant improvement was found between the pre and post ACAT conditions for the majority of the auditory abilities investigated by the behavioral method; however, the same result was not found for the parameters of P300 in any of the conditions (tone burst or speech). The same way, no significant difference was found between the P300 evoked by tone burst and evoked by speech stimulation during the neurobiological changes monitoring coming from ACAT. Conclusions: The ACAT was able to promote a change in the behavioral performance of the elderly for most investigated auditory abilities, proving to be an effective method regards hearing rehabilitation of elderly with APD. Considering the high vulnerability to the cognitive factors and intra-subject variability that the P300 presents, we conclude that this potential does not seem to be the best tool to monitor the changes that result from the ACAT program in the elderly (AU)

FAPESP's process: 12/04561-4 - The efficacy of acoustically controlled auditory training in elderly people with auditory processing disorder
Grantee:Aline Albuquerque Morais
Support type: Scholarships in Brazil - Master