Slow Evoked Cortical Responses to Linear Frequency Ramps in Subjects With Cochlear Lesions

Arlinger, Stig; Jerlvall, Lars; Ahrén, T.; Holmgren, Eddy

doi:10.3109/00016487709123959

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…Indeed, previous electrophysiological studies demonstrate shorter N1 response latency for linear frequency sweeps of short compared to longer ramp durations [1]. Under this notion, dynamic, time-varying signals might require longer temporal integration windows [e.g.,16] as larger frequency changes would be required to reach a comparable output level of a putative "pitch integrator" [2,3]. Estimates from behavioral studies suggest that the auditory system requires at least ∼20 ms (a rate of change of 25 octave/sec) to identify the presence of frequency modulation [18].…”

Section: Discussionmentioning

confidence: 98%

Sensitivity of the cortical pitch onset response to height, time-variance, and directionality of dynamic pitch

Bidelman

2015

Neuroscience Letters

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Section: Discussionmentioning

confidence: 98%

Sensitivity of the cortical pitch onset response to height, time-variance, and directionality of dynamic pitch

Bidelman

2015

Neuroscience Letters

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“…The effects of peripheral hearing loss on the response properties, synchrony, and organization of cortical neurons may also affect the ERPs in ways different from those found in the simulations of hearing loss. Sensorineural hearing loss • Although there are studies that examine the effects of sensorineural hearing loss on ERPs in response to suprathreshold click or tonal stimuli (Arlinger, 1977;Arlinger, et al, 1977;Dietrich, et al, 2001;Khosla, et al, 2003;Ponton, et al, 1996bPonton, et al, , 1999Vasama & Makela, 1997), few have investigated the effects of sensorineural hearing loss on speech-evoked ERPs. Furthermore, earlier studies typically included only a small number of subjects and reported contradictory findings.…”

Section: Latency) Shown Are Data Normalized In Terms Of Response Strmentioning

confidence: 98%

Speech Evoked Potentials: From the Laboratory to the Clinic

2008

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Speech-evoked auditory event-related potentials (ERPs) provide insight into the neural mechanisms underlying speech processing. For this reason, ERPs are of great value to hearing scientists and audiologists. This article will provide an overview of ERPs frequently used to examine the processing of speech and other sound stimuli. These ERPs include the P1-N1-P2 complex, acoustic change complex, mismatch negativity, and P3 responses. In addition, we focus on the application of these speech-evoked potentials for the assessment of (1) the effects of hearing loss on the neural encoding of speech allowing for behavioral detection and discrimination; (2) improvements in the neural processing of speech with amplification (hearing aids, cochlear implants); and (3) the impact of auditory training on the neural processing of speech. Studies in these three areas are reviewed and implications for audiologists are discussed.

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“…In previous reports, we have presented studies where such stimuli were used to evoke auditory cortical responses from subjects with normal hearing' as well as with inner ear hearing loss. 2 In addition to the extensive studies on these limited groups of subjects, evoked auditory responses to frequency glides have been recorded in our clinic on all patients which have been seen for evaluation of unilateral sensorineural hearing loss. For many of those patients, no final diagnosis as to the site of lesion has been reached.…”

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confidence: 99%

Auditory evoked cortical responses to frequency glides in subjects with retrocochlear hearing impairment.

Arlinger¹

1983

Journal of Neurology, Neurosurgery & Psychiatry

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SubjectsForty-four subjects with retrocochlear lesions were examined. Of these, 28 had acoustic neuromas, three had meningiomas and two had cholesteatomas in the cerebellopontine angle, that were all later surgically verified. One had a microglioma affecting the cerebellum and brainstem bilaterally, verified post mortem. In the remaining 10 subjects, the diagnosis was based on neuroradiologic findings (computed tomography and meatography), the clinical diagnosis being either cerebellopontine angle tumour or intra-canalicular acoustic tumour.The subjects' ages varied from 15 to 73 years with a mean of 54 and a median of 58 years. Twenty-three of the subjects were men and 21 women. Of the 43 cases of unilateral tumour, 21 had involvement of the right and 22 of the left side. Hearing loss at 1 kHz varied over the range 5-120 dB HL with a mean of 53 dB on the tumour side. On the non-tumour side the range of hearing threshold levels at 1 kHz was -5 to 55 dB with a mean of 9 dB. All except five were within normal range (that is -20 dB). Table 1 shows the distributions of hearing threshold levels in four classes for 1 and 4 kHz. Also the distribution of speech discrimination scores is presented. Methods

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Slow Evoked Cortical Responses to Linear Frequency Ramps in Subjects With Cochlear Lesions

Cited by 8 publications

References 14 publications

Sensitivity of the cortical pitch onset response to height, time-variance, and directionality of dynamic pitch

Sensitivity of the cortical pitch onset response to height, time-variance, and directionality of dynamic pitch

Speech Evoked Potentials: From the Laboratory to the Clinic

Auditory evoked cortical responses to frequency glides in subjects with retrocochlear hearing impairment.

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