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dc.contributor.authorRickards, F. W.en_US
dc.contributor.authorClark, Graeme M.en_US
dc.date.accessioned2014-05-21T20:09:22Z
dc.date.available2014-05-21T20:09:22Z
dc.date.issued1982en_US
dc.identifier.citationRickards, F. W., & Clark, G. M. (1982). Evoked responses in humans to continuous amplitude modulated tones. Australian Journal of Audiology, suppl. 1, 11.en_US
dc.identifier.urihttp://hdl.handle.net/11343/27169
dc.descriptionThis is a publisher’s version of an abstract published in Australian Journal of Audiology 1982. This version is reproduced with permission from the publisher, Australian Academic Press. http://www.australianacademicpress.com.au/en_US
dc.description.abstractThe clinical use of the slow cortical auditory evoked responses and the auditory brainstem response is now widespread. Both of these responses look at the electrical changes in the brain following the onset of an acoustic stimulus and are known as transient responses. This paper will describe a technique of recording electrical potentials evoked during a continuous sinusoidally-modulated amplitude-modulated tone. This type of response is known as a steady-state response. The responses to this type of sound were found to be periodic, having the same fundamental frequencies as the modulation envelope. A Fourier transform was used to quantify the amplitude and phase of the first two harmonic components of the response. Responses can be recorded for modulation rates from 4Hz to 448Hz, for carrier frequencies from 250Hz to 4KHz and for sound pressure levels (SPLs) from 30dBSPL to 100dBSPPL. In general, the response amplitude increases with SPL. Estimates of latencies of these steady-state potentials can be made by measuring the phase of both harmonics as the modulation frequency is varied. Latencies suggest the auditory cortex as one of the sources of the response. The clinical implication of these results will be discussed.en_US
dc.relation.ispartofScientific publications, vol.2, 1978-1983, no.546en_US
dc.subjectotolaryngologyen_US
dc.subjectotologyen_US
dc.subjectsteady state responseen_US
dc.titleEvoked responses in humans to continuous amplitude modulated tones [Abstract]en_US
dc.typeJournal Itemen_US
melbourne.source.titleAustralian Journal of Audiologyen_US
melbourne.source.volumesuppl. 1en_US
melbourne.source.pages11en_US
melbourne.elementsidNA
melbourne.contributor.authorClark, Graeme
melbourne.contributor.authorRickards, Field
melbourne.accessrightsOpen Access


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