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Related Experiment Videos

Auditory processing disorder (APD)-potential contribution of mouse research.

David R Moore1

  • 1MRC Institute of Hearing Research, University Park, Nottingham NG7 2RD, UK. davem@ihr.mrc.ac.uk

Brain Research
|March 28, 2006
PubMed
Summary

Auditory processing disorder (APD) affects speech perception despite normal hearing. This study explores using mouse models and pre-pulse inhibition (PPI) to better understand APD's causes and develop diagnostic tools.

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Area of Science:

  • Neuroscience
  • Audiology
  • Genetics

Background:

  • Auditory processing disorder (APD) is a common, poorly understood listening impairment characterized by difficulties in speech perception despite normal hearing.
  • Current diagnostic practices for APD are inconsistent, with proposed criteria focusing on deficits in detecting, discriminating, localizing, and ordering non-speech sounds.
  • APD is thought to stem from central auditory system dysfunction, influenced by cognitive, peripheral auditory, and crossmodal factors, with potential environmental and inherited contributions.

Purpose of the Study:

  • To investigate the utility of mouse models for studying central auditory processing relevant to APD.
  • To explore high-throughput screening methods for auditory processing deficits.
  • To establish a framework for both primary screening and secondary assessment of auditory processing in mice.

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Main Methods:

  • Utilizing mice as models for central auditory processing research.
  • Implementing reflex and/or event-related potential measures for high-throughput primary screening.
  • Employing pre-pulse inhibition (PPI) as a screening tool to assess auditory processing regulation of the acoustic startle reflex.
  • Developing and applying standard psychoacoustic tests for secondary assessment in mice.

Main Results:

  • Mice offer a valuable model for investigating the neural basis of auditory processing.
  • Pre-pulse inhibition (PPI) provides a viable method for high-throughput screening of auditory processing capabilities.
  • Established psychoacoustic tests allow for detailed secondary assessment of auditory functions in mice.

Conclusions:

  • Mouse models, combined with PPI and psychoacoustic testing, can significantly advance the understanding of APD.
  • This research facilitates the development of more effective diagnostic tools and potential therapeutic strategies for APD.
  • Further research in mouse models holds promise for elucidating the complex etiologies of auditory processing disorders.