Near-threshold recordings of amplitude modulation following responses (AMFR) in children of different ages

Pethe, J.; ̈hler, Roland Mu; Siewert, Karen; Specht, H. von

doi:10.1080/14992020400050043

Cited by 23 publications

(20 citation statements)

References 26 publications

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“…The maturational period of responses to higher rates is known to be shorter than the maturational period of lower rates. While responses in the frequency domain of 4, 20 and 40 Hz have been demonstrated to significantly differ between children and adults, responses to 80 Hz have been thought to change little with age (Pethe et al, 2004;Tlumak et al, 2012). However, a recent study showed that the maturational period for such higher rates would be more prolonged than initially assumed (Skoe et al, 2013).…”

Section: Introductionmentioning

confidence: 90%

Theta, beta and gamma rate modulations in the developing auditory system

et al. 2015

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In the brain, the temporal analysis of many important auditory features relies on the synchronized firing of neurons to the auditory input rhythm. These so-called neural oscillations play a crucial role in sensory and cognitive processing and deviances in oscillatory activity have shown to be associated with neurodevelopmental disorders. Given the importance of neural auditory oscillations in normal and impaired sensory and cognitive functioning, there has been growing interest in their developmental trajectory from early childhood on. In the present study, neural auditory processing was investigated in typically developing young children (n = 40) and adults (n = 27). In all participants, auditory evoked theta, beta and gamma responses were recorded. The results of this study show maturational differences between children and adults in neural auditory processing at cortical as well as at brainstem level. Neural background noise at cortical level was shown to be higher in children compared to adults. In addition, higher theta response amplitudes were measured in children compared to adults. For beta and gamma rate modulations, different processing asymmetry patterns were observed between both age groups. The mean response phase was also shown to differ significantly between children and adults for all rates. Results suggest that cortical auditory processing of beta develops from a general processing pattern into a more specialized asymmetric processing preference over age. Moreover, the results indicate an enhancement of bilateral representation of monaural sound input at brainstem with age. A dissimilar efficiency of auditory signal transmission from brainstem to cortex along the auditory pathway between children and adults is suggested. These developmental differences might be due to both functional experience-dependent as well as anatomical changes. The findings of the present study offer important information about maturational differences between children and adults for responses to theta, beta and gamma rates. The current study can have important implications for the understanding of developmental disorders which are known to be associated with deviances in neural auditory processing.

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Section: Introductionmentioning

confidence: 90%

Theta, beta and gamma rate modulations in the developing auditory system

et al. 2015

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“…Some researchers report that responses are greater when tones are modulated at 20 Hz (Fifer, 1985;Suzuki & Kobayashi, 1984), while others report responses to be higher in amplitude between 25 and 40 Hz (Pethe et al, 2004;Riquelme et al, 2006), or between 72 and 97 Hz (Aoyagi et al, 1993(Aoyagi et al, , 1994Pethe et al, 2004;Rickards et al, 1994). Still others have reported no consistent amplitude peak when tones were modulated at frequencies between 9 and 59 Hz (Stapells et al, 1988).…”

mentioning

confidence: 89%

Steady-state analysis of auditory evoked potentials over a wide range of stimulus repetition rates: Profile in children vs. adults

Tlumak

Durrant

Delgado

et al. 2012

International Journal of Audiology

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“…Taking into account the results of the present study and of Savio et al [2001], this could indicate that the largest increase in SNR takes place in the fi rst year of life. However, the SNRs in the study of Pethe et al [2004] were in general very low, partly caused by the very short test duration and high noise levels.…”

Section: Age-related Changes In Assrmentioning

confidence: 99%

“…However, both studies have observed an age-related change in ASSR, although in different subject groups. Pethe et al [2004] tested children between the ages of 2 months and 14 years with the singlefrequency ASSR. At 50 dB nHL, the amplitude slightly increased with age, but the increase in SNR was not signifi cant.…”

Section: Age-related Changes In Assrmentioning

confidence: 99%

Clinical Application of Dichotic Multiple-Stimulus Auditory Steady-State Responses in High-Risk Newborns and Young Children

2006

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Experience with dichotic multiple-stimulus auditory steady-state responses (ASSRs) in clinical practice is described. ASSR thresholds were assessed in a sample of 60 high-risk newborns and young children between birth and 4 years of age. Amplitudes and signal-to-noise ratios (SNRs) of the ASSR were compared between normal-hearing infants and adults. Age-related changes within a group of infants younger than 3 months of age were investigated. A comparison was made between ASSR, the click-evoked auditory brainstem response and behavioral hearing thresholds in infants with a wide range of hearing threshold levels. Mean ASSR thresholds for normal-hearing infants at an average corrected age of 12 days were 42 ± 10, 35 ± 10, 32 ± 10 and 36 ± 9 dB SPL for 0.5, 1, 2 and 4 kHz, respectively. Compared to adults, these thresholds were elevated by on average 11 dB and SNRs were 1.7 times smaller. However, based on ASSRs, reasonably accurate estimations could be made of behavioral hearing thresholds obtained at a later age (median delay of 7 months). The predicted thresholds were in 61% of the cases within 10 dB of the corresponding behavioral thresholds, and in 83% of the cases within 15 dB. In less than 1 h, thresholds at four frequencies per ear could be obtained. The optimal age of testing is between 1 week and 3 months corrected age. The dichotic multiple-stimulus ASSR technique is a valuable extension of the clinical test battery for hearing-impaired children, as a follow-up diagnostic after the neonatal hearing screening.

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Near-threshold recordings of amplitude modulation following responses (AMFR) in children of different ages

Cited by 23 publications

References 26 publications

Theta, beta and gamma rate modulations in the developing auditory system

Theta, beta and gamma rate modulations in the developing auditory system

Steady-state analysis of auditory evoked potentials over a wide range of stimulus repetition rates: Profile in children vs. adults

Clinical Application of Dichotic Multiple-Stimulus Auditory Steady-State Responses in High-Risk Newborns and Young Children

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