Effects of rise time on simultaneously recorded auditory-evoked potentials from the early, middle and late ranges. 1979

K Kodera, and R F Hink, and O Yamada, and J I Suzuki

The view that the effects of stimulus rise time are qualitatively different for early brain stem components, middle latency components and late vertex components of the auditory-evoked responses was reexamined. The amplitudes and latencies of the brain stem response (Jewett's wave V), middle latency components Na and Pa, and vertex potentials P1, N1 and P2, evoked by tone burts of various rise times, were analyzed. Increases in rise time were associated with smaller peak amplitudes and longer peak latencies for all of the components measured. These effects were comparable in magnitude for all the components. The results are interpreted in terms of a delayed and less synchronized neural discharge from the cochlea as rise time is extended.

UI MeSH Term Description Entries
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
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
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
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

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