Auditory steady-state responses to multiple simultaneous stimuli

Lins, Otávio Gomes; Picton, Terence W.

doi:10.1016/0168-5597(95)00048-w

Cited by 265 publications

(185 citation statements)

References 28 publications

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“…Psychophysical studies have demonstrated similar effects of a higher-frequency masker having a greater effect on the target (Bacon and Moore 1993;Mendoza et al 1995). The decrease in response amplitudes using multiple AM tones of the same sound level (SNR of 0 dB) has also been previously seen using steady state potentials where significant interactions between the tones take place, especially at moderate to high sound levels of 40-80 dB SPL (Dolphin 1995;Lins and Picton 1995;McNerney and Burkard 2010). In these studies, responses to a given AM decreases in the presence of a separate AM of higher F C (Ross et al 2003;McNerney and Burkard 2010).…”

Section: Detection Vs Fidelity Of Neural Codingmentioning

confidence: 81%

“…Concurrent sAM stimuli have been used as a model for detection and segregation of auditory objects in which stimulus parameters can be modified in a controlled and predictable manner (Hall and Grose 1991;Bacon and Konrad 1993;Yost and Sheft 1994). These studies suggest varying degrees of interactions in the detection of competing sAM stimuli, depending on sound level and spectral content of each component (Lins and Picton 1995;Herdman and Stapells 2003;McNerney and Burkard 2010;Nakamoto et al 2010). However, the neurophysiological bases of processing competing sAM tones are poorly understood.…”

Section: Introductionmentioning

confidence: 99%

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Age-Related Changes in Processing Simultaneous Amplitude Modulated Sounds Assessed Using Envelope Following Responses

Parthasarathy

Lai

Bartlett

2016

JARO

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Listening conditions in the real world involve segregating the stimuli of interest from competing auditory stimuli that differ in their sound level and spectral content. It is in these conditions of complex spectrotemporal processing that listeners with age-related hearing loss experience the most difficulties. Envelope following responses (EFRs) provide objective neurophysiological measures of auditory processing. EFRs were obtained to two simultaneous sinusoidally amplitude modulated (sAM) tones from young and aged Fischer-344 rats. One was held at a fixed suprathreshold sound level (sAM1 FL ) while the second varied in sound level (sAM2 VL ) and carrier frequency. EFR amplitudes to sAM1 FL in the young decreased with signal-to-noise ratio (SNR), and this reduction was more pronounced when the sAM2 VL carrier frequency was spectrally separated from sAM1 FL . Aged animals showed similar trends, while having decreased overall response amplitudes compared to the young. These results were replicated using an established computational model of the auditory nerve. The trends observed in the EFRs were shown to be due to the contributions of the lowfrequency tails of high-frequency neurons, rather than neurons tuned to the sAM1 FL carrier frequency. Modeling changes in threshold and neural loss reproduced some of the changes seen with age, but accuracy improved when combined with an additional decrease representing synaptic loss of auditory nerve neurons. Sound segregation in this case derives primarily from peripheral processing, regardless of age. Contributions by more central neural mechanisms are likely to occur only at low SNRs.

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Section: Detection Vs Fidelity Of Neural Codingmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Age-Related Changes in Processing Simultaneous Amplitude Modulated Sounds Assessed Using Envelope Following Responses

Parthasarathy

Lai

Bartlett

2016

JARO

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“…Such EEG and MEG signals, when evoked by stationary modulated sounds can be characterized by the auditory steady state response (aSSR), the response component at the same frequency as the stimulus modulation frequency (e.g., Wang et al, 2012). Speech typically contains multiple concurrent modulations, but EEG and MEG studies of concurrent modulations have typically focused on rates far above 20 Hz (Lins and Picton, 1995;John et al, 1998;Draganova et al, 2002 Two broad categories of theories have been proposed to explain auditory modulation perception. Earlier approaches proposed that the demodulation of input signals is induced by half-wave rectification and compressive processes occurring at the periphery.…”

Section: Introductionmentioning

confidence: 99%

Physiological evidence for auditory modulation filterbanks: Cortical responses to concurrent modulations

Xiang

Poeppel

Simon

2012

The Journal of the Acoustical Society of America

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Modern psychophysical models of auditory modulation processing suggest that concurrent auditory features with syllabic (∼5 Hz) and phonemic rates (∼20 Hz) are processed by different modulation filterbank elements, whereas features at similar modulation rates are processed together by a single element. The neurophysiology of concurrent modulation processing at speech-relevant rates is here investigated using magnetoencephalography. Results demonstrate expected neural responses to stimulus modulation frequencies; nonlinear interaction frequencies are also present, but, critically, only for nearby rates, analogous to “beating” in a cochlear filter. This provides direct physiological evidence for modulation filterbanks, allowing separate processing of concurrent syllabic and phonemic modulations.

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“…The response detection provided by statistical methods brings about a reduction in the risks created by the subjective interpretation; and also the possibility of studying intensity thresholds stronger than the click-BERA and SF-BERA; also enabling the further assessment of the residual hearing in cases of profound hearing loss. [5][6][7] Studies have compared BERA and click-BERA responses showing reasonable correlations among the techniques. [8][9][10][11][12] The few studies comparing click-BERA and SSEAP in the frequencies of 2 and 4 kHz, and with the SSEAP mean values in the high frequencies (1-4 and 2-4 kHz), in children with ages equal to or lower than 36 months indicated significant correlations between the techniques.…”

Section: Introductionmentioning

confidence: 99%

Potenciais Evocados Auditivos de Estado Estável no diagnóstico audiológico infantil: uma comparação com os Potenciais Evocados Auditivos de Tronco Encefálico

Rodrigues¹,

Lewis²,

Fichino³

2010

Braz. j. otorhinolaryngol. (Impr.)

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Summary Auditory Steady-State Responses (ASSR) are being recognized as a promising technique in the assessment of hearing in children. Aim To investigate the agreement level between results obtained from ASSR and click-ABR in a group of children with sensorineural hearing loss, in order to study the clinical applicability of this technique to evaluate the hearing status in young children. Study design clinical prospective with a cross-sectional cohort. Materials and Methods 15 children aged between two and 36 months and with diagnosis of sensorineural hearing loss. The correlation between the responses of the two tests was evaluated by intraclass correlation coefficient and McNemar test comparing the probability of responses in both tests. Results The correlation coefficients were: 0.70; 0.64; 0.49; 0.69; 0.63 and 0.68 respectively for frequencies of 1, 2, 4, 1–2, 2–4 and 1–2-4kHz. In McNemar test p = 0.000, indicating that the probability of obtaining responses in both tests was not equal, but greater for the ASSR. Conclusion we found good agreement between the techniques among the four frequencies evaluated, suggesting that both tests may be complementary. However, the ASSR was able to obtain additional information in cases of severe and profound hearing losses, adding important data to the management of these children, providing greater accuracy to the audiological diagnosis.

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Auditory steady-state responses to multiple simultaneous stimuli

Cited by 265 publications

References 28 publications

Age-Related Changes in Processing Simultaneous Amplitude Modulated Sounds Assessed Using Envelope Following Responses

Age-Related Changes in Processing Simultaneous Amplitude Modulated Sounds Assessed Using Envelope Following Responses

Physiological evidence for auditory modulation filterbanks: Cortical responses to concurrent modulations

Potenciais Evocados Auditivos de Estado Estável no diagnóstico audiológico infantil: uma comparação com os Potenciais Evocados Auditivos de Tronco Encefálico

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