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  • Title: [New methods in the objective audiometry for the proof of simulation and for the determination of the differential thresholds for frequency and intensity (author's transl)].
    Author: Brix R.
    Journal: Laryngol Rhinol Otol (Stuttg); 1978 Aug; 57(8):733-9. PubMed ID: 682792.
    Abstract:
    The "late acoustically evoked potentials" (50 to 300 msec) can be recorded in different stages of vigilance and awareness; therefore their significance as a correlate of conscious central perception is doubtful. The "very late DC-potentials" (300 msec and more) reflect conscious central perception because of their cognitively determinated features and can be used for the proof of simulation. Their application in ERA comprises the determination of the hearing threshold, the "objective speech audiometry" and the determination of the differential thresholds. The "objective frequency decrement test" gives additional informations about the degree and the specifity of a hearing loss. The objective proof of the differential threshold for intensity demonstrates the insufficient significance of the SISI test.
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