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How to assess the audiological result of cochlear implantation

How to assess the audiological result of cochlear implantation. Paul J Govaerts, Bart Vaerenberg, Geert De Ceulaer, Kristin Daemers, Martine Coene The Eargroup & Univ Antwerp Antwerp - Belgium. Rationale. PTA = 57 dB. Sound features. Amplitude. intensity. Intensity coding. manner

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How to assess the audiological result of cochlear implantation

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  1. How to assess the audiological resultof cochlear implantation Paul J Govaerts, Bart Vaerenberg, Geert De Ceulaer, Kristin Daemers, Martine Coene The Eargroup & UnivAntwerp Antwerp - Belgium

  2. Rationale PTA = 57 dB

  3. Sound features Amplitude intensity Intensity coding manner tempo rhythm syllabicity spectralcontent Spectral content Tonotopy Envelope Temporal content temporalcontent Temporal Fine Structure PhaseLocking pitch place voicing voice quality.

  4. Sound processing identification discrimination detection red yellow

  5. Sound processing identification discrimination detection

  6. Sound processing identification discrimination detection

  7. Measuring Outcome intensity spectralcontent temporalcontent

  8. Measuring Outcome intensity spectralcontent temporalcontent

  9. Measuring Outcome intensity spectralcontent temporalcontent

  10. Replacing the cochlea intensity spectralcontent temporalcontent AuditorySpeech Sound Evaluation http://otoconsult.com

  11. Assessment of sound perception

  12. A§E Loudnessscaling

  13. Assessment of sound perception

  14. Rationale tooloud veryloud loud normal soft very soft inaudible

  15. Use and interpretation P97,5 P2,5

  16. A§E phonemediscrimination

  17. Assessment of sound perception intensity spectralcontent temporalcontent

  18. Oddityparadigm

  19. Discrimination

  20. Assessment of sound perception ∆F0 F0=200 Hz 2008-’10 European consortium: Otoconsult (BE), Neurelec (FR), Del Bo Technologia per l’Ascolto (IT) Universities of Antwerp (BE), Leiden (NL), Venezia (IT), Bucharest (RO), Paris XIII (FR), CNRS (FR) intensity spectralcontent temporalcontent

  21. Assessment of sound perception

  22. Pitchperception ~ tonotopy ~ Tonotopy ~ Phase Locking ~ phaselocking ~ phaselocking

  23. Pitchperception ~ Tonotopy ~ Phase Locking

  24. Pitchperception: EAS (Digi Zebra) ~ Tonotopy ~ Phase Locking

  25. Pitch perception: TFS (MedEl) ~ Tonotopy ~ Phase Locking

  26. Pitchperception: Meniere ~ Tonotopy ~ Phase Locking

  27. A§E Localization

  28. Localization Low F ∆t High F ∆I ITD: interaural time differences ILD: interaural level differences

  29. I1 I2 Localization 0 -1 1 -2 2 -3 3 -4 4 -5 5 ΔI -6 6

  30. Localization

  31. 14 mos 20 mos test 7 yrs Localization 1st CI 2nd CI 10 mos 5 yrs test 8 yrs

  32. Measuring Outcome intensity spectralcontent temporalcontent

  33. Measuring Outcome intensity spectralcontent temporalcontent

  34. A§E self-testing OtoCube

  35. Conclusions spectralcontent temporalcontent intensity RMS = -1/+1/+1.9 70% (14/20) JND: 8/94 AuditorySpeech Sound Evaluation http://otoconsult.com PTA = 57 dB

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