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Related Concept Videos

Auditory Pathway01:15

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
Hearing01:31

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.

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Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice
08:51

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Published on: May 10, 2019

Brainstem auditory evoked potential with speech stimulus.

Caroline Nunes Rocha1, Renata Filippini, Renata Rodrigues Moreira

  • 1Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina, Universidade de São Paulo. carolrocha@usp.br

Pro-Fono : Revista De Atualizacao Cientifica
|January 29, 2011
PubMed
Summary
This summary is machine-generated.

Auditory Brainstem Response (ABR) using speech stimuli reveals brainstem auditory processing in typical adults. This method offers a new tool for understanding sound encoding at the brainstem level.

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Area of Science:

  • Neuroscience
  • Audiology
  • Auditory Evoked Potentials

Background:

  • Clinical use of click stimuli for brainstem auditory function evaluation is widespread.
  • Limited understanding exists regarding auditory processing of complex stimuli like speech.
  • Research gap in evaluating speech stimulus processing in the brainstem.

Purpose of the Study:

  • To characterize Auditory Brainstem Response (ABR) findings using speech stimuli in adults with typical development.
  • To establish normative data for ABR responses to speech stimuli.
  • To explore ABR as a tool for assessing brainstem auditory processing of complex sounds.

Main Methods:

  • Fifty typically developing adults (22 males, 28 females) participated.
  • Auditory Brainstem Response (ABR) was assessed using both click and speech stimuli.
  • Analysis focused on latencies, amplitudes, area, and slope of response components before 10 ms.

Main Results:

  • Speech-evoked ABR components (V, A, complex VA) were identified in all subjects.
  • Specific latency (ms) and amplitude (µV) values were recorded for V, A, and complex VA.
  • Area (µV x ms) and slope (µV / ms) measurements were also quantified.

Conclusions:

  • Auditory Brainstem Response (ABR) with speech stimuli is a viable method for assessing brainstem auditory processing.
  • This approach provides valuable insights into the neural encoding of complex sounds at the brainstem level.
  • Speech-evoked ABR serves as a novel tool for auditory function evaluation.