caa a22 4500 463181247 CHVBK 20180406164839.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s00381-007-0403-9 doi (NATIONALLICENCE)springer-10.1007/s00381-007-0403-9 The vestibulo-ocular reflex during active head motion in children and adolescents [Elektronische Daten] [Michael Salman, Linda Lillakas, Maureen Dennis, Martin Steinbach, James Sharpe] Background: Little information is available on the performance and maturity of the vestibulo-ocular reflex (VOR) in children and adolescents during active head motion as encountered during normal locomotion. We investigated the active VOR performance in children and adolescents to determine its norm and variation with age. Methods: We recorded the angular active VOR using an infrared eye tracker and a magnetic head tracker in 38 children, aged 8-19years. Participants made sinusoidal head-on-body rotations in yaw (left-right) and pitch (up-down) at frequencies of about 0.5 and 2Hz in the dark. Results: Mean VOR gains, the ratios of eye to head velocities, were close to unity and were significantly higher at 2Hz than at 0.5Hz. VOR gains did not vary with age. Conclusion: The angular VOR during active head motion is functionally mature in children 8years or older at 0.5 and 2Hz head rotations. Springer-Verlag, 2007 VOR nationallicence Active head motion nationallicence Children nationallicence Eye movement nationallicence Development nationallicence Salman Michael Section of Pediatric Neurology, Children's Hospital, AE 308, 820 Sherbrook St., R3A 1R9, Winnipeg, MB, Canada aut Lillakas Linda Vision Science Research Program, University of Health Network, University of Toronto, Toronto, ON, Canada aut Dennis Maureen Division of Psychology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada aut Steinbach Martin Vision Science Research Program, University of Health Network, University of Toronto, Toronto, ON, Canada aut Sharpe James Division of Neurology, University Health Network, University of Toronto, Toronto, ON, Canada aut Child's Nervous System Springer-Verlag 23/11(2007-11-01), 1269-1274 0256-7040 23:11<1269 2007 23 381 https://doi.org/10.1007/s00381-007-0403-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00381-007-0403-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Salman Michael Section of Pediatric Neurology, Children's Hospital, AE 308, 820 Sherbrook St., R3A 1R9, Winnipeg, MB, Canada aut NATIONALLICENCE 700 1- Lillakas Linda Vision Science Research Program, University of Health Network, University of Toronto, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Dennis Maureen Division of Psychology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Steinbach Martin Vision Science Research Program, University of Health Network, University of Toronto, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Sharpe James Division of Neurology, University Health Network, University of Toronto, Toronto, ON, Canada aut NATIONALLICENCE 773 0- Child's Nervous System Springer-Verlag 23/11(2007-11-01), 1269-1274 0256-7040 23:11<1269 2007 23 381 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer