EthoVision XT - Trial and Hardware Control in EthoVision® XT 17.5 - Reference Manual
Last updated: Jul 25, 2026
Reference Manual Version 17.5
Information in this document is subject to change without notice and does not represent a commitment on the part of Noldus Information Technology BV. The software described in this document is furnished under a license agreement. The software may be used or copied only in accordance with the terms of the agreement. publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language in whole or in part, in any form or by any means, without the written permission of Noldus Information Technology BV. EthoVision and PhenoTyper are registered trademarks of Noldus Information Technology BV. Other product names are trademarks of their respective companies. March 9, 2023 For EthoVision XT version 17.5
Noldus Information Technology BV
International headquarters Wageningen, The Netherlands Phone +31-317-473300 E-mail info@ noldus.nl Contents this manual - 7 why use trial and hardware control? - 7 conditions and actions - 8 trial control rules - 9 how trial control instructions are executed - 10 your ethovision license and trial control - 14 analysis of trial control data - 15 the components pane - 17 the trial control window - 19 maximum trial duration pane - 21 procedure - 23 conditions - 26 actions - 27 trial control variables - 28 external commands - 31 operators - 34 re-use trial control elements - 36 frequently-occurring cases - 38 test the trial control sequence - 42 apply trial control to your trials - 45 the default start-stop trial rule - 47 customize the start-stop trial rule - 49 examples of start-stop trial rules - 51 Contents use sub-rules - 55 create a sub-rule - 56 create a reference to a sub-rule - 57 sub-rule start conditions - 60 sub-rule stop conditions - 61 place the sub-rule reference in the trial control sequence - 63 end a sub-rule - 63 call a sub-rule from another sub-rule - 65 conditions based on time - 67 conditions based on a time interval - 69 conditions based on a trial control variable - 71 conditions based on a dependent variable - 72 subjects in a condition - 75 when is a condition met? - 76 conditions based on behaviors scored manually - 78 conditions based on hardware devices - 79
More about conditions based on dependent
distance moved - 84 velocity - 84 movement - 85 acceleration - 86 in zone - 86 distance to zone - 88 distance to point - 88 meander - 89 target visits and errors - 89 zone alternation - 90 zone transition - 90 heading - 91 heading to point - 91 head direction - 92 head directed to zone - 92 turn angle - 93 angular velocity - 94 activity - 94 body elongation - 95 body elongation state - 95 body angle - 96 body angle state - 96 Contents mobility - 97 mobility state - 97 rotation - 98 javascript variables - 98 distance between subjects - 99 proximity - 99 body contact - 100 relative movement - 100 net weighted movement - 100 weighted movement from - 101 weighted movement to - 101 conditions based on multiple dependent variables - 101 devices supported in ethovision xt - 104 work with multiple devices - 106 connect the hardware devices - 107 set the port connections - 109 assign devices to arenas - 113 test the hardware devices - 115 program trial control with hardware devices - 117 the usb-io box - 120 install the usb-io box - 124 connect the usb-io box to devices - 128 use multiple usb-io boxes - 131 test the usb-io box - 132 jumper and dip switch settings - 133 configure ethovision xt - 136 the mini usb-io box - 137 the ttl port tester - 144 the optical isolated ttl-io interface - 151 technical specifications - 153 user-defined device types - 155 in a nutshell - 155 define a new device type - 157 sample file - 158 predefined ids - 162 xml file entries - 163 Contents what do you want to do? - 168 trial control events - 170 trial control states - 172 data within trial control states - 177 trial control variables - 178 hardware command - 178 hardware continuous variable - 179 hardware state variable - 181 free intervals based on trial control and hardware data - 184 the analysis results - 184 export trial control data - 185 introduction - 188 simple case: two arenas - 191 advanced case: six arenas - 196
Source: EthoVision XT 17 - Trial and Hardware Control Reference Manual