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Related Concept Videos

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
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Brainstem evoked auditory potentials with speech stimulus in the auditory processing disorder.

Renata Filippini1, Eliane Schochat

  • 1Human Communications - Rehabilitation Sciences, Medical School, University of São Paulo. refilippini@usp.br

Brazilian Journal of Otorhinolaryngology
|August 4, 2009
PubMed
Summary
This summary is machine-generated.

Speech stimuli are more effective than click stimuli for diagnosing Auditory Processing Disorders (APD). This method reveals delays and reduced amplitudes in APD patients, highlighting issues with speech processing and linguistic information.

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Area of Science:

  • Neuroscience
  • Audiology
  • Speech-Language Pathology

Background:

  • Brainstem Auditory Evoked Potentials (BAEPs) with click stimuli are established for auditory assessment.
  • Limited understanding exists regarding the brainstem's processing of complex auditory stimuli like speech.

Purpose of the Study:

  • To validate speech stimuli as an effective tool for evaluating speech auditory processing.
  • To enhance understanding of Auditory Processing Disorders (APD).

Main Methods:

  • Prospective clinical study involving 20 APD and 20 normal development (ND) subjects.
  • Utilized BAEPs with both click and speech stimuli (first 40ms of /da/ syllable).

Main Results:

  • No significant differences between APD and ND groups with click stimuli.
  • Speech stimuli revealed latency delays and lower amplitudes in the APD group compared to the ND group.

Conclusions:

  • Speech stimuli demonstrate higher sensitivity in evaluating APD.
  • Suggests potential alterations in synchronicity and neural input speed for speech processing, particularly linguistic information.