Potencial evocado auditivo cortical em neonatos a termo e pré-termo: gênero e indicadores de risco para deficiência auditiva

Melo, Ândrea de; Sleifer, Pricila; Rechia, Inaê Costa; Biaggio, Eliara Pinto Vieira

doi:10.1590/2317-6431-2015-1645

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…Although other studies with adults and elderly subjects demonstrate higher values of latency and amplitude in males than in females, 6 12 50 in the present study no statistically significant differences were found between genders. These results corroborate with studies performed in neonates using long-latency potentials 51 and in young adults with MMN, 52 which similarly did not show differences between genders in the procedures performed.…”

Section: Discussionsupporting

confidence: 89%

Mismatch Negativity in Children: Reference Values

Ferreira

Bueno

Costa

et al. 2018

Int Arch Otorhinolaryngol

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Introduction The Mismatch Negativity (MMN) auditory evoked potential evaluation is a promising procedure to assess objectively the ability of auditory discrimination. Objective To characterize the latency and amplitude values of MMN in children with normal auditory thresholds and without auditory complaints. Methods Children between 5 and 11 years old participated in the present study. All participants underwent acoustic immittance measurements and tonal and vocal audiometry. The MMN was recorded with the MASBE ATC Plus system (Contronic, Pelotas, RS, Brazil). The electrodes were fixed in Fz (active electrode), Fpz (ground electrode) and in M2 and M1 (references electrodes). The intensity used was 80 dBHL, the frequent stimulus was 1,000 Hz and the rare stimulus was 2,000 Hz. The stimuli were presented in both ears separately. Results For the female group, the mean latencies and amplitude of MMN were 177.3 ms and 5.01 μV in the right ear (RE) and 182.4 ms and 5.39 μV in the left ear (LE). In the male group, the mean latencies were 194.4 ms in the RE and 183.6 ms in the LE, with an amplitude of 5.11 μV in the RE and 5.83 μV in the LE. There was no statistically significant difference between ears (p = 0.867 - latency and p = 0.178 - amplitude), age (p > 0.20) and the gender of the participants (p > 0.05). Conclusion Using the described protocol, the mean latency value of MMN was 184.0 ms for RE and 182.9 ms for LE, and the amplitude was 5.05 μV and 5.56 μV for the left and right ears, respective.

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Section: Discussionsupporting

confidence: 89%

Mismatch Negativity in Children: Reference Values

Ferreira

Bueno

Costa

et al. 2018

Int Arch Otorhinolaryngol

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“…No statistical significance obtained in the present study conforms to the findings in previous similar studies [ 11 , 23 , 37 , 40 ]. MMN variables were also not found to be different with respect to gender in the present study which supports the reports from previous similar studies [ 41 , 42 ].…”

Section: Discussionsupporting

confidence: 93%

Mismatch Negativity Responses to Different Auditory Attributes in Normally Developing Infants and Children

Gupta¹,

Bhardwaj²

2022

Cureus

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IntroductionMismatch negativity (MMN) is a change-specific component of the event-related potentials that is elicited by an irregularity in repetitive auditory stimulation. As it is developmentally stable and can be measured in the absence of the participant's attention, it can be a valuable method for assessing auditory discrimination in infants and young children. The classic MMN paradigm involves tone frequency as the mismatching attribute. Multi-feature MMN paradigms which involve different auditory attributes can assess discrimination abilities in a wider group of disorders. The study aimed to report standardised MMN values obtained with MMN paradigms including several auditory attributes to extend the clinical applicability of the test in infants and young children. MethodsMMN responses were recorded in 42 normal infants and young children (2 months to 5 years) with multifeature MMN paradigms. MMN variables in different trials were compared by one-way ANOVA. Pearson's correlation coefficient and independent sample t-test were performed for finding an association with the age and gender of the participants respectively. P<0.05 was considered as statistically significant. ResultsMMN amplitude exhibited statistically significant differences in different MMN paradigms (p<0.05). An increase in the degree of standard and deviant differences and double deviant responses also resulted in larger MMN. MMN latency variation in the trials was not statistically significant. The age and gender of the participants did not influence the MMN variables with statistical significance. ConclusionMMN paradigms with different auditory attributes report significant amplitude variations. Multi-feature MMN paradigms can optimize the clinical applicability of the test and can determine the profile of different auditory discrimination abilities.

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“…A relation between age and responses in latency and amplitude is also verified in humans. With age there is an increase in latency and a decrease in amplitude (Choudhury & Benasich, ; Melo, Sleifer, et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…However, in our literature review, we did not find studies comparing potential responses with attention, memory, and discrimination tests. These tests complement are objective and non‐invasive and complement the routine diagnostic evaluations for auditory changes (Junqueira & Colafêmina, ; Melo, Biaggio, Rechia, & Sleifer, ; Melo, Sleifer, Rechia, & Biaggio, ).…”

Section: Introductionmentioning

confidence: 96%

Auditory evoked potentials in children and adolescents with Down syndrome

Gregory

Rosa

Zen

et al. 2017

American J of Med Genetics Pt A

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Down syndrome, or trisomy 21, is the most common genetic alteration in humans. The syndrome presents with several features, including hearing loss and changes in the central nervous system, which may affect language development in children and lead to school difficulties. The present study aimed to investigate group differences in the central auditory system by long-latency auditory evoked potentials and cognitivepotential. An assessment of 23 children and adolescents with Down syndrome was performed, and a control group composed of 43 children and adolescents without genetic and/or neurological changes was used for comparison. All children underwent evaluation with pure tone and vocal audiometry, acoustic immitance measures, longlatency auditory evoked potentials, and cognitive potential. Longer latencies of the waves were found in the Down syndrome group than the control group, without significant differences in amplitude, suggesting that individuals with Down syndrome have difficulty in discrimination and auditory memory. It is, therefore, important to stimulate and monitor these children in order to enable adequate development and improve their life quality. We also emphasize the importance of the application of auditory evoked potentials in clinical practice, in order to contribute to the early diagnosis of hearing alterations and the development of more research in this area.central auditory evaluation, Down syndrome, electrophysiology, event-related potentials, evoked potentials, hearing, trisomy 21

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Potencial evocado auditivo cortical em neonatos a termo e pré-termo: gênero e indicadores de risco para deficiência auditiva

Cited by 4 publications

References 25 publications

Mismatch Negativity in Children: Reference Values

Mismatch Negativity in Children: Reference Values

Mismatch Negativity Responses to Different Auditory Attributes in Normally Developing Infants and Children

Auditory evoked potentials in children and adolescents with Down syndrome

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