O efeito da estimulação top-down e bottom-up no potencial evocado auditivo de tronco encefálico com estímulo complexo

Leite, Libia Camargo Ribeiro

doi:10.11606/d.5.2016.tde-30062016-144844

Cited by 2 publications

(3 citation statements)

References 48 publications

(70 reference statements)

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“…Second, the initial values to the E wave latency were already close to normal, thus reducing the margin for better performance (26). Finally, latency measures and amplitude do not seem to be the most appropriate for assessing plasticity at a cortical level (25), as other studies have also found no significant changes in the FFR after auditory training (27,28).…”

Section: ' Discussionmentioning

confidence: 94%

“…Three hypotheses should be considered in relation to the above findings. First, there may have been a transient increase in E wave latency due to the increase in neuronal activity, and as there was only a short time between the end of the intervention and the reevaluation, this affected the results ( 25 ). Second, the initial values to the E wave latency were already close to normal, thus reducing the margin for better performance ( 26 ).…”

Section: Discussionmentioning

confidence: 99%

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Acoustically Controlled Binaural Auditory Training with Vocal Duets: Assessment and Effectiveness

Picinini¹,

Sperança²,

Pereira³

2021

Clinics

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We aimed to evaluate the effectiveness of a binaural auditory training program with vocal duets by comparing skills through outcomes from behavioral and electrophysiological assessment instruments at three moments: before the intervention, moment one (M1); immediately after training, moment two (M2); and 3 months after, moment three (M3). METHODS: This interventional, longitudinal, prospective, and uncontrolled study was approved by our Research Ethics Committee. Binaural auditory training with vocal duets (ATVD) was applied in 10 adults with normal audiometric thresholds and auditory processing disorders. ATVD used four different vocals of a public domain song sung in a cappella as stimuli. Participants were asked to register any perceived difference in frequency for each syllable of the song during 30-minute sessions twice a week. The number of sessions required ranged from 12 (6 hours) to 20 (10 hours). RESULTS: Regarding behavioral tests, the dichotic consonant-vowel test showed significant evidence of an improved advantage in the left ear (LE) in the non-forced condition and a significant reduction in the number of errors at M2 and M3 in the forced left condition. The speech-in-noise test and frequency pattern test showed a significant reduction in impaired results at M2 and M3. Electrophysiological results showed a significant increase in the LE amplitude in the P3 long-latency auditory evoked potentials test, as well as a decrease in the auditory brainstem response test (III-V and I-V inter-peak latencies in the right ear and wave I and I-III inter-peak latencies in LE). CONCLUSION: The effectiveness of ATVD was evidenced, and the results were maintained after 3 months.

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Section: ' Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Acoustically Controlled Binaural Auditory Training with Vocal Duets: Assessment and Effectiveness

Picinini¹,

Sperança²,

Pereira³

2021

Clinics

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“…Já o top-down ocorre em um estágio posterior da percepção auditiva, e compete ao reconhecimento e compreensão do estímulo acústico de acordo com as experiências e conhecimento da linguagem, relacionando-se com os processos de memória e atenção (TALLUS et al, 2007;HUGDAHL et al, 2008;MOORE, 2012;SHUAI;GONG, 2014). Leite (2016) afirma que ambos os processos estão diretamente interligados e são mutuamente influenciados. COSTA; LESSA, 2013).…”

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Phrases in Noise Test (PINT) Brasil: interpretação dos valores de normalidade

Souza¹

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Phrases in Noise Test (PINT) Brazil: interpretation of normative dataThe scarcity of speech perception in noise' tests aimed at child population limits the evaluation of the performance of children in acoustically unfavorable situations, especially children with hearing-impairment (HI). The Phrases in Noise Test (PINT) Brazil can contribute to the evaluation of speech perception in noise in the national scenario. Thus, it is necessary to estimate the reference values for normality.This study aimed to: (1) establish the reference values for the PINT Brazil; (2) to investigate the effects of age for speech perception on silence and noise and (3) the benefits of spatial separation of speech and noise sources on speech perception performance in normal hearing children; (4) to verify if the variables of gender, school, socioeconomic level and moment of evaluation influence the children's performance for the test; and (5) make available to audiologists, through the website, the PINT Brazil for the evaluation and monitoring of oralized hearing impaired children. Observational, cross-sectional, descriptive and quantitative research. The sample consisted of 50 children, aged four years to 11 years and five months, divided into four subgroups, and 16 young adults, aged 20 years and 10 months to 28 years and six months. All subjects underwent 1) audiological evaluation; 2) assessment of speech perception in noise using the PINT Brazil, performed in silence, back noise (BN) and front noise (FN), and HINT Brazil only with adults, in BN and FN situations. Were the children and their families also submitted to the socioeconomic evaluation. All results were statistically analyzed by parametric or nonparametric tests, according to the data distribution.Younger children, aged four to five years old, had greater difficulty in speech perception in noise for BN and FN positions. The FN situation was more challenging for children, corroborating the advantages of spatial separation of speech and noise for evaluation in this population. In the case of adults, they performed worse compared to older children. Further investigations are suggested for the results found in speech perception in noise' tests in adults, since they were not the target population of the study. The variables gender, school, family socioeconomic level and moment of the evaluation did not show statistically significant difference and, therefore, did not influence the children's performance for the evaluation.Were established the reference values for the PINT Brazil with children from four to 11 years and five months of age. For comparison with the scores obtained in normal hearing children, should be considered the reference values according to the hearing age of children with HI. It is expected that, with the availability of the PINT Brazil Portal, access to the free and universal free trial will be facilitated, contributing to the clinical practice of Audiology in Brazil.

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O efeito da estimulação top-down e bottom-up no potencial evocado auditivo de tronco encefálico com estímulo complexo

Cited by 2 publications

References 48 publications

Acoustically Controlled Binaural Auditory Training with Vocal Duets: Assessment and Effectiveness

Acoustically Controlled Binaural Auditory Training with Vocal Duets: Assessment and Effectiveness

Phrases in Noise Test (PINT) Brasil: interpretação dos valores de normalidade

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