Knowledge Base

Program the Top Lights in EthoVision XT

Choose Setup > Trial Control Settings.

Example: Program your Trial Control Settings so that the White/RGB Top Light is switched on one minute after the start of the trial, and switches off after 10 seconds.

• Under Conditions, choose Time to create time conditions:
  • One Time condition to Wait 1 minute
  • One Time condition to Wait 10 seconds
• Under Actions, choose White Top Light / RGB Top Light and define the actions:
  • One action to switch the White Top Light on
  • One action to switch the Top Light off. This can be done for both Output 1 and Output 2 in the Hardware Action boxes.
• Remember to connect all boxes between the Start Track action box and the Stop Track action box.

Create a Routine for the Top Light

With the Subrule function of the Trial Control Settings you can create routines in order to have the switch on/off sequence repeated multiple times. For more information, see the EthoVision XT 18 - Trial and Hardware Control - Reference Manual.

Also adjust the Detection Settings (Setup > Detection Settings) before running the trials.

Protocols with Multi-Color Light Stimuli

You can create a protocol that presents Top Light stimuli of different light colors within the same trial. To do so:

1. Install the RGB Top Light. Make sure that the RGB side is facing down. See Switch Between White and Colors above.
2. In the Trial Control Settings, create multiple Action boxes. In each of them, specify the dominant color and intensity.
3. Insert the Action boxes in the Trial Control Settings procedure. Insert Time Condition boxes between subsequent Action boxes.

Source: DanioVision DVOC-0050 Reference Manual - Toplight Unit, Noldus Information Technology