caa a22 4500 475848802 CHVBK 20180406123922.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1007/s004050050221 doi (NATIONALLICENCE)springer-10.1007/s004050050221 Dynamic visual acuity during linear acceleration along the inter-aural axis [Elektronische Daten] [F. Schmäl, R. Kunz, W. Stoll] We investigated visual-vestibular interactions during linear acceleration along the inter-aural axis. Eighteen healthy volunteers and two patients with central neurological diseases were subjected to transaural linear acceleration in the direction of gravity force (frequency: 0.5-1.5 Hz; amplitude: 5 cm). During linear acceleration, eye movements were recorded under three test conditions: eyes closed (EC), while staring at an imaginary target (IT) and during the testing of dynamic visual acuity (DVA). As parameters of evaluation we used the amplitude of horizontal eye movements, phase shift and the decrease of DVA threshold (DVAT). Under all test conditions, eye amplitude increased with rising stimulus frequency and exceeded, especially in the higher frequency range, a hypothetically calculated eye amplitude for smooth pursuit. The combination of a visual and vestibular input (DVA and IT) led to a better compensation (lower phase shift) than under vestibular stimulation alone (EC). Eye movements during low-frequency stimulation depended more on the visual system while responses in the higher frequency range were mainly triggered by the otolith organ. At 1.5 Hz the compensatory function of the visual-vestibular system was limited (rising phase shift) and DVAT decreased even in a significant number of healthy subjects. Patients with diseases of the central nervous system showed a higher phase shift and thus a stronger decrease of DVAT (two levels) already at a stimulus frequency of 1.25 Hz. Springer-Verlag Berlin Heidelberg, 2000 Key words Linear acceleration nationallicence Inter-aural axis nationallicence Visual nationallicence vestibular interaction nationallicence Dynamic visual acuity nationallicence Schmäl F. Department of Otorhinolaryngology, Head and Neck Surgery, University of Münster, Kardinal-von-Galen-Ring 10, 48149 Münster, Germany e-mail: schmae@uni-muenster.de, Tel.: +49 251 83 6801, Fax: +49 251 83 6812, DE aut Kunz R. Department of Otorhinolaryngology, Head and Neck Surgery, University of Münster, Kardinal-von-Galen-Ring 10, 48149 Münster, Germany e-mail: schmae@uni-muenster.de, Tel.: +49 251 83 6801, Fax: +49 251 83 6812, DE aut Stoll W. Department of Otorhinolaryngology, Head and Neck Surgery, University of Münster, Kardinal-von-Galen-Ring 10, 48149 Münster, Germany e-mail: schmae@uni-muenster.de, Tel.: +49 251 83 6801, Fax: +49 251 83 6812, DE aut https://doi.org/10.1007/s004050050221 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s004050050221 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schmäl F. Department of Otorhinolaryngology, Head and Neck Surgery, University of Münster, Kardinal-von-Galen-Ring 10, 48149 Münster, Germany e-mail: schmae@uni-muenster.de, Tel.: +49 251 83 6801, Fax: +49 251 83 6812, DE aut NATIONALLICENCE 700 1- Kunz R. Department of Otorhinolaryngology, Head and Neck Surgery, University of Münster, Kardinal-von-Galen-Ring 10, 48149 Münster, Germany e-mail: schmae@uni-muenster.de, Tel.: +49 251 83 6801, Fax: +49 251 83 6812, DE aut NATIONALLICENCE 700 1- Stoll W. Department of Otorhinolaryngology, Head and Neck Surgery, University of Münster, Kardinal-von-Galen-Ring 10, 48149 Münster, Germany e-mail: schmae@uni-muenster.de, Tel.: +49 251 83 6801, Fax: +49 251 83 6812, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer