Knowledge Base

The Open Field Test

Behavior Section Configuration

Next, open the Behavior section in the Detection Settings pane. Wait until the rat has a normal, straight, posture (so not bending or rearing) and is moving forward. You should see the hips of the rat moving. Click Grab and check that the body contour is correct. You can also enter the values manually if you know them from previous experiments.

However, in this case make sure that the conditions are equal, like lighting, size of the animal and distance between the animal and the camera.

Body Detection Requirements

• The detected body must have a minimum length of 60 pixels (sum of nose-point to center-point and center-point to tail-base) for Behavior Recognition.
• The detected body must also be smaller than half the arena size.

For more information, see the EthoVision XT Help.

Source: EthoVision XT 18 - Application Manual, Noldus Information Technology