STUDIES ON THE WHOLE NERVE ACTION POTENTIAL AND SUMMATING POTENTIAL RECORDED FROM ROUND WINDOW
نویسندگان
چکیده
منابع مشابه
The Group Delay and Suppression Pattern of the Cochlear Microphonic Potential Recorded at the Round Window
BACKGROUND It is commonly assumed that the cochlear microphonic potential (CM) recorded from the round window (RW) is generated at the cochlear base. Based on this assumption, the low-frequency RW CM has been measured for evaluating the integrity of mechanoelectrical transduction of outer hair cells at the cochlear base and for studying sound propagation inside the cochlea. However, the group d...
متن کاملNormal summating potential to tone bursts recorded from the tympanic membrane in humans.
The use of tone-burst stimuli for electrocochleography (ECochG) may offer certain advantages over conventional broad-band clicks. Namely, the summating potential (SP) component can be examined at different frequencies and may be easier to define and measure. To apply these findings clinically, it would first be necessary to establish SP amplitudes as a function of tone-burst frequency in normal...
متن کاملEffects of sympathetic stimulation on the round window compound action potential in the rat.
The effect on the ear of stimulating the sympathetic nervous system was studied in rats by recording the compound action potentials (N1N2) in response to 2 kHz tonebursts presented to anesthetized rats before, during, and after electrical stimulation of the superior cervical ganglion, and evaluating the changes in N1 latency which resulted. Stimulation of the superior cervical ganglion was foun...
متن کاملAmplitude and area ratios of summating potential/action potential (SP/AP) in Meniere's disease.
CONCLUSIONS Our results suggest that summating potential/action potential (SP/AP) area ratio may not necessarily have higher sensitivity in the diagnosis of endolymphatic hydrops of Meniere's disease (MD) than SP/AP amplitude ratio in transtympanic electrocochleography (ECochG). OBJECTIVE Recent studies suggested that SP/AP area curve ratio was more sensitive to endolymphatic hydrops in compa...
متن کاملSummating potential in Meniere's disease.
This study assesses several electrocochleographic (ECoG) duration and amplitude measures in a clinically defined Meniere's group and compares the results with those from a normal hearing control group and a hearing loss group (cochlear). The summating potential (SP)/action potential (AP) amplitude ratio was the most efficient diagnostic measure, with 62% of the Meniere's group demonstrating abn...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1961
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.64.1765