Analysis of the components of Frequency-Following Response in phonological disorders

Ferreira, Laís; Gubiani, Marileda Barichello; Keske‐Soares, Márcia; Skarżyński, Henryk; Sanfins, Milaine Dominici; Biaggio, Eliara Pinto Vieira

doi:10.1016/j.ijporl.2019.03.035

Cited by 9 publications

(11 citation statements)

References 26 publications

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“…In the present study, the latency values differed from what had been previously described [4][5][6][7] , possibly due to the differences in acquisition protocols such as filters, stimuli presentation rate, intensity, etc. Nonetheless, the protocol used has been conceptualized as being ideal to obtain clearer responses (lower presentation rates (3.77/sec), greater intensities (75 dB SPL) of the stimulus and lower frequency spectrum of the…”

Section: Discussioncontrasting

confidence: 86%

“…Changed response patterns have been observed in people with language problems 4 , allowing for differential diagnosis and therapeutic monitoring. For instance, abnormal FFR latencies can be found in individuals with hearing loss 5 , children with learning difficulties, and auditory processing changes 6,7 . Therefore, FFR is considered an objective method to assess the auditory processing mechanisms, used as a biological marker of decoding speech sounds 3 .…”

Section: Introductionmentioning

confidence: 99%

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Assessment protocols for forward masking in Frequency-Following Response

et al. 2020

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Purpose: to investigate forward masking by comparing latencies values of positive and negative peaks in frequency-following responses (FFR) recordings, in normally hearing young adults. Methods: from a database, 20 FFR recordings were selected, 10 being from men, and 10 from women, aged 18 to 25 years, with normal hearing. They were qualitatively analyzed by two experienced researchers and also analyzed, according to two different protocols of recording identification: (i) predominance of positive peaks - PV, A, PW, PX, PY, PZ, and O waves; and (ii) predominance of negative peaks - V, A, C, D, E, F, and O waves. The Shapiro-Wilk normality test, the Wilcoxon test, and the Student’s t-test were conducted, by adopting the significance level of p<0.05. Results: the comparative analysis of latency peak values did not reveal any significant difference between the studied protocols. However, the standard deviation was higher for absolute latency values as compared to negative peaks, suggesting an inverted pattern of what was expected. Conclusion: forward masking was identified in both proposals and the protocol of predominant positive peaks was less variable.

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Section: Discussioncontrasting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Assessment protocols for forward masking in Frequency-Following Response

et al. 2020

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“…However, these changes were less significant and more inconsistent. It may be difficult to identify a forward masking effect in this region of the response because of the interaction between the masking effect of the preceding noise and a masking effect caused by the stimulus itself (due to its more complex characteristics) 18,19 .…”

Section: Discussionmentioning

confidence: 99%

“…Fundamental frequency of the stimulus plays an important role in subcortical coding, facilitating (or confusing) perception of the sustained component of the syllable. However, it is known that vowels (sustained component) contain intense acoustic cues with higher periodicity and are less influenced by noise 18,19 .…”

Section: Discussionmentioning

confidence: 99%

Forward masking with frequency-following response analyses

et al. 2021

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Purpose: to analyze forward masking in normally hearing young people, by using frequency-following responses. Methods: the synthetic syllable /da/ was used for the recordings of ten individuals, in the following conditions: /da/ with no masking, and /da/ after 4, 16, 32, and 64 milliseconds of masking. F-test (ANOVA) was applied for repeated measures with the Greenhouse-Geisser correction to compare testing conditions. For significant differences, multiple comparisons (between pairs of conditions) and Bonferroni correction were used. Data normality was verified by applying the Shapiro-Wilk test, and statistical significance was used at 5%. Results: wave latencies of all masking conditions were compared with those of no masking. A latency delay was observed in the transient region of the response (PV and A) in all masking conditions, except for 64 milliseconds. Latency delay also occurred for waves PW, PX, and PY, which corresponded to the sustained region of the response. Conclusion: forward masking was observed, by using frequency-following responses with /da/ syllable in four intervals (4, 16, 32, and 64 ms) of preceding masking. Forward masking was more evident in the transient region of the response than in the sustained one. This study highlights the importance of electrophysiological testing in temporal processing assessment.

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“…The FFR is sensitive to changes in human communication involving hearing, language, and learning. For more than 2 decades, studies have shown that FFR is able to reveal different aspects of communication impairment, such as auditory processing deficits (Filippini et al, 2012;Graydon et al, 2019;Johnson et al, 2005;Koravand et al, 2019;Krishnamurti et al, 2013;Lotfi et al, 2019), phonological disorders (Bonacina et al, 2019;Ferreira et al, 2019), learning difficulties (Banai et al, 2009;Malayeri et al, 2014), dyslexia (Basu et al, 2010;Hornickel & Kraus, 2013), and a Speech, Language and Hearing Sciences Graduate Program, Health Sciences Center, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil even autism (Chen et al, 2019;Font-Alaminos et al, 2020;Ramezani et al, 2018). The FFR proves to be very versatile, and its application goes beyond assessment related to hearing only, as it provides rich information about the neural encoding of speech.…”

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confidence: 99%

Frequency-Following Response in Newborns and Infants: A Systematic Review of Acquisition Parameters

Lemos

Nunes

Evangelista

et al. 2021

J Speech Lang Hear Res

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Purpose The purpose of this study is to characterize parameters used for frequency-following response (FFR) acquisition in children up to 24 months of age through a systematic review. Method The study was registered in PROSPERO and followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses' recommendations. Search was performed in six databases (LILACS, LIVIVO, PsycINFO, PubMed, Scopus, and Web of Science) and gray literature (Google Scholar, OpenGrey, ProQuest)as well as via manual searches in bibliographic references. Observational studies using speech stimuli to elicit the FFR in infants with normal hearing on the age range from 0 until 24 months were included. No restrictions regarding language and year of publication were applied. Risk of bias was assessed with the Joanna Briggs Institute Critical Appraisal Checklist. Data on stimulus, presentation rate, time window for analysis, number of sweeps, artifact rejection, online filters, stimulated ear, and examination condition were extracted. Results Four hundred fifty-nine studies were identified. After removing duplicates and reading titles and abstracts, 15 articles were included. Seven studies were classified as low risk of bias, seven as moderate risk, and one as high risk. Conclusions There is a consensus in the use of some acquisition parameters of the FFR with speech stimulus, such as the vertical mounting, the use of alternating polarity, a sampling rate of 20000 Hz, and the /da/ synthesized syllable of 40 ms in duration as the preferred stimulus. Although these parameters show some consensus, the results disclosed lack of a single established protocol for FFR acquisition with speech stimulus in infants in the investigated age range.

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Analysis of the components of Frequency-Following Response in phonological disorders

Cited by 9 publications

References 26 publications

Assessment protocols for forward masking in Frequency-Following Response

Assessment protocols for forward masking in Frequency-Following Response

Forward masking with frequency-following response analyses

Frequency-Following Response in Newborns and Infants: A Systematic Review of Acquisition Parameters

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