Detectability of the acoustically evoked composite response (40 HZ potential) near threshold. 1985

E Stürzebecher, and W Kühne, and H Berndt

In 56 persons with normal hearing and 10 patients with sensorineural hearing loss, acoustically evoked potentials were recorded at stimulus repetition rates of 10/s, 20/s, 30/s and 40/s. With a sufficiently low lower amplifier cut-off frequency, one obtains at the repetition rate of 40/s a composite response described by Galambos et al. (1981) as 40 Hz potential, which consists of the ABR evoked by the given stimulus and superposed MLR-waves evoked by the preceding stimuli. In both groups the amplitude mean value of the potentials recorded at the stimulus rate 40/s was significantly higher than at lower rates. The detectability of the near-threshold response for the subjects with normal hearing was distinctly higher than the responses recorded at lower rates.

UI MeSH Term Description Entries
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D001933 Brain Stem The part of the brain that connects the CEREBRAL HEMISPHERES with the SPINAL CORD. It consists of the MESENCEPHALON; PONS; and MEDULLA OBLONGATA. Brainstem,Truncus Cerebri,Brain Stems,Brainstems,Cerebri, Truncus,Cerebrus, Truncus,Truncus Cerebrus
D006319 Hearing Loss, Sensorineural Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM. Deafness Neurosensory,Deafness, Neurosensory,Deafness, Sensoryneural,Neurosensory Deafness,Sensorineural Hearing Loss,Sensoryneural Deafness,Cochlear Hearing Loss,Hearing Loss, Cochlear,Deafnesses, Neurosensory,Deafnesses, Sensoryneural,Neurosensory Deafnesses,Sensoryneural Deafness,Sensoryneural Deafnesses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000161 Acoustic Stimulation Use of sound to elicit a response in the nervous system. Auditory Stimulation,Stimulation, Acoustic,Stimulation, Auditory
D001300 Audiometry, Evoked Response A form of electrophysiologic audiometry in which an analog computer is included in the circuit to average out ongoing or spontaneous brain wave activity. A characteristic pattern of response to a sound stimulus may then become evident. Evoked response audiometry is known also as electric response audiometry. Audiometry, Electroencephalic Response,Electrocochleography,Evoked Response Audiometry,Audiometries, Electroencephalic Response,Audiometries, Evoked Response,Electrocochleographies,Electroencephalic Response Audiometries,Electroencephalic Response Audiometry,Evoked Response Audiometries,Response Audiometries, Electroencephalic,Response Audiometries, Evoked,Response Audiometry, Electroencephalic,Response Audiometry, Evoked
D001309 Auditory Threshold The audibility limit of discriminating sound intensity and pitch. Auditory Thresholds,Threshold, Auditory,Thresholds, Auditory

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