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Andrei Temchin - PowerPoint PPT Presentation


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Shyamla Narayan. Alberto Recio. Ed Overstreet. Andrei Temchin. Burt Evans. Laboratory for Hearing Biology (~1996). Laboratory for Hearing Biology (today). Luis Robles. Jon Siegel. Andrei Temchin. Yun-Hui Fan. Qin Gong. Yi-Bo Fan.

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Andrei Temchin


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    1. Shyamla Narayan Alberto Recio Ed Overstreet Andrei Temchin Burt Evans Laboratory for Hearing Biology (~1996)

    2. Laboratory for Hearing Biology (today) Luis Robles Jon Siegel Andrei Temchin Yun-Hui Fan Qin Gong Yi-Bo Fan

    3. AT THE BASE OF THE COCHLEA, BASILAR-MEMBRANE RESPONSES TO CHARACTERISTIC-FREQUENCY TONES GROW AT HIGHLY COMPRESSIVE RATES (e.g., 0.2 dB/dB) chinchilla guinea pig cat

    4. COMPRESSIVE NONLINEARITY IN BASILAR-MEMBRANE RESPONSES TO CLICKS

    5. IN SPITE OF THE PROMINENT NONLINEARITIES OF BASILAR-MEMBRANE VIBRATIONS, THE FOURIER SPECTRA OF RESPONSES TO CLICKS MATCH, LEVEL BY LEVEL, THE RESPONSES TO TONES

    6. GROWTH OF PEAKS IN RESPONSES TO CLICKS AS A FUNCTION OF STIMULUS LEVEL

    7. COMPRESSIVE NONLINEARITY IS PRESENT WITHIN A SINGLE PERIOD OF RESPONSE OSCILLATION

    8. IN THE CHINCHILLA, BASILAR-MEMBRANE RESPONSES ARE MORE SHARPLY TUNED AND EXHIBIT GREATER NONLINEARITY AT THE BASE OF THE COCHLEA THAN AT THE APEX

    9. Compression and other nonlinearities of BM responses probably arise in nonlinear transduction in outer hair cells Cooper, 2003

    10. RESPONSES OF AUDITORY-NERVE FIBERS EXHIBIT AN INTENSITY-DEPENDENT PHASE SHIFT THAT IS NOT PRESENT IN BASILAR- MEMBRANE RESPONSES

    11. SECOND-ORDER WIENER KERNELS OF AUDITORY-NERVE FIBERS RESPONSES TO NOISE

    12. FRONT, GROUP AND FILTER DELAYS

    13. MAP OF DELAYS FOR THE CHINCHILLA COCHLEA

    14. COMPARISON OF GROUP DELAYS OF BASILAR-MEMBRANE VIBRATIONS AND STIMULUS-FREQUENCY OTOACOUSTIC EMISSIONS (SFOAEs)

    15. BASILA-MEMBRANE RESPONSES AT THE BASE OF THE COCHLEA ARE NOT MINIMUM-PHASE Original response Minimum-phase version (time domain) 44 dB SPL 104 dB SPL

    16. BASAL RESPONSES ARE NOT MINIMUM-PHASE 44 dB SPL 104 dB SPL (frequency domain)

    17. THE MEASURED PHASE SHIFTS AS A FUNCTION OF GAIN ARE MUCH SMALLER THAN EXPECTED FROM MINIMUM-PHASE BEHAVIOR

    18. EVEN POST-MORTEM RESPONSES ARE NOT MINIMUM-PHASE

    19. BASILAR-MEMBRANE RESPONSES AT THE APEX OF THE COCHLEA ARE NOT MINIMUM-PHASE

    20. DEVELOPMENT OF BASILAR-MEMBRANE VIBRATIONS IN NEW-BORN GERBILS: RUDIMENTARY TRAVELING WAVE

    21. POST-MORTEM BASILAR-MEMBRANE RESPONSES IN ADULT GERBIL ARE NOT MINIMUM-PHASE

    22. BUT IN-VIVO BASILAR-MEMBRANE RESPONSES IN IMMATURE COCHLEAE ARE MINIMUM-PHASE