The relaxation dynamics of spontaneous otoacoustic emissions (SOAE) interacting with an external tone using a van der Pol limit cycle oscillator model interacting with multiple constant level external tones were described. Six data sets were collected using different levels of suppression. The waveforms consisted of four distinct transitions between the different signal conditions. All the waveforms exhibited a slight undershoot of the theoretical fit during the initial transition from unsuppressed to suppressed conditions. The dynamics of spontaneous emissions interacting with external stimuli may be inherent properties arising from the underlying mechanics responsible for generating spontaneous otoacoustic emissions. This theory may not fully describe the SOAE relaxation dynamics, but it further defines cochlear models which seek to stimulate otoacoustic emissions. The analysis has demonstrated that the dynamics of the interaction of an SOAE with a single frequency tone at multiple levels of suppression were adequately described by an isolated limit cycle oscillator interacting with an external tone. Additional fit parameters do improve the quality of the fit to more fully account for the behavior of the emission.
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.