The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Ocular microtremor (OMT) is a high frequency tremor of the eyes present during fixation and probably related to brainstem activity (Coakley, D. (1983). Minute eye movement and brain stem function. CRC Press, FL.). Published observations on the frequency of OMT have varied widely. Ocular microtremor was recorded in 105 normal healthy subjects using the Piezoelectric strain gauge technique. The dominant...
This paper describes a new, non-invasive ultrasonic imaging technique which facilitates investigation of the physiological basis for the indirect blood pressure (b. p.) measurement procedure. The paper details one particular application of the new technique: the measurement of the pressure required to collapse the isolated brachial artery. In a survey of 21 elderly subjects, 13 subjects showed spontaneous...
This paper compares (i) conventional Fourier, and (ii) Linear Predictive (LP) spectral analysis techniques, in their ability to quantify the high frequency content of the tremor signal of the eye, known as Ocular Microtremor (OMT). The results demonstrates that LP spectral analysis is clearly superior to conventional Fourier analysis.
This paper investigates two implementations of the neuro-muscular model of the fine tremor of the eye known as ocular microtremor (OMT). The neurological model assumes that the spectrum of tremor reflects the distribution of firing frequencies among oculomotor neurones. The neuro-mechanical model assumes that the OMT spectral peak reflects the mechanical resonance of the eye. The results indicate...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.