Title:
METHOD OF AUTOMATICALLY TESTING THE HEARING OF, IN PARTICULAR, NEW-BORN BABIES AND INFANTS
Document Type and Number:
WIPO Patent Application WO1997024056
Kind Code:
A3
Abstract:
PCT No. PCT/DE96/02453 Sec. 371 Date Jun. 26, 1998 Sec. 102(e) Date Jun. 26, 1998 PCT Filed Dec. 19, 1996 PCT Pub. No. WO97/24056 PCT Pub. Date Jul. 10, 1997The invention discloses a process for the automatic determination of hearing of newborns and infants, by detecting the auditory brainstem responses (ABRs) or otacoustic emissions (OAEs), by testing in a frequency domain, by applying a predetermined initial acoustic stimulation level to a subject, pre-averaging a predetermined, sufficient, number of sweeps to yield a set of subaverages (SA), calculating a predetermined number, n, of frequency spectra based on the subaverages (SA), applying a q-sample uniform scores test or a q-sample Watson U2 test to determine phase and/or amplitude differences among the n frequency spectra. The number of frequency spectra, n, is determined by continuously averaging a predetermined number of initial sweeps to provide a predetermined number, m, of subaverages (SA), calculating m frequency spectra based on the m subaverages, and repeatedly applying the q-sample uniform scores test or the q-sample Watson U2 test to the m frequency spectra, carrying out a test run using the m q-sampled frequency spectra, increasing the number of included frequency spectra stepwise and carrying out an additional test run at each step until all n spectral terms are included or until an auditory brainstem response (ABR) or otacoustic emission (OAE) is detected.
Inventors:
STUERZEBECHER EKKEHARD (DE)
CEBULLA MARIO (DE)
BAAG MATTHIAS (DE)
THIE RAINER (DE)
CEBULLA MARIO (DE)
BAAG MATTHIAS (DE)
THIE RAINER (DE)
Application Number:
PCT/DE1996/002453
Publication Date:
October 23, 1997
Filing Date:
December 19, 1996
Export Citation:
Assignee:
PILOT BLANKENFELDE MEDIZINISCH (DE)
STUERZEBECHER EKKEHARD (DE)
CEBULLA MARIO (DE)
BAAG MATTHIAS (DE)
THIE RAINER (DE)
STUERZEBECHER EKKEHARD (DE)
CEBULLA MARIO (DE)
BAAG MATTHIAS (DE)
THIE RAINER (DE)
International Classes:
A61B5/0484; A61B5/12; (IPC1-7): A61B/
Foreign References:
| US4462411A | 1984-07-31 |
Other References:
A. KOPP U.A.: "Messplatz zur Ableitung akustisch evozierter Hirnstammpotentiale mit dem Elektroenzephalograph BST1", MEDIZINTECHNIK, vol. 27, no. 1, March 1987 (1987-03-01), BERLIN (DD), pages 7 - 9, XP000037396
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