Biomaterial Database

Cochlear microphonic responses of the peripheral auditory system to frequency-varying signals. 1984

S E Shore, and J K Cullen

Cochlear partition displacement responses to rising and falling frequency sweeps were inferred from cochlear microphonic potentials recorded from three basal turn locations in the guinea pig cochlea. Relative phase measures of microphonic potentials recorded from the three locations suggested that displacements of the partition toward either scala vestibuli or scala tympani occurred closely together in time for rising sweeps and were dispersed in time for falling sweeps. These differences in peripheral response patterns to sweeps may explain, in part, asymmetric neural discharges elicited from higher neural centers.

UI	MeSH Term	Description	Entries
D003055	Cochlear Microphonic Potentials	The electric response of the cochlear hair cells to acoustic stimulation.	Cochlear Microphonic Potential,Potential, Cochlear Microphonic,Potentials, Cochlear Microphonic
D005072	Evoked Potentials, Auditory	The electric response evoked in the CEREBRAL CORTEX by ACOUSTIC STIMULATION or stimulation of the AUDITORY PATHWAYS.	Auditory Evoked Potentials,Auditory Evoked Response,Auditory Evoked Potential,Auditory Evoked Responses,Evoked Potential, Auditory,Evoked Response, Auditory,Evoked Responses, Auditory,Potentials, Auditory Evoked
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001301	Audiometry, Pure-Tone	Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.	Audiometry, Bekesy,Audiometry, Pure Tone,Bekesy Audiometry,Pure-Tone Audiometry
D001489	Basilar Membrane	A basement membrane in the cochlea that supports the hair cells of the ORGAN OF CORTI, consisting keratin-like fibrils. It stretches from the SPIRAL LAMINA to the basilar crest. The movement of fluid in the cochlea, induced by sound, causes displacement of the basilar membrane and subsequent stimulation of the attached hair cells which transform the mechanical signal into neural activity.	Basilar Membranes,Membrane, Basilar,Membranes, Basilar
D012533	Scala Tympani	The lower chamber of the COCHLEA, extending from the round window to the helicotrema (the opening at the apex that connects the PERILYMPH-filled spaces of scala tympani and SCALA VESTIBULI).	Scala Tympanus,Tympani, Scala,Tympanus, Scala