# Stop the trial in the Eight-arm radial maze test

Aim

To stop tracking when the subject has been in four arms within 10 minutes

Procedure

This can be done by combining eight conditions, that is, that the animal must be in the arm specifying that at least four must be met, no matter which arm the animal visits.

1.Create an In zone condition and specify that the Frequency for Arm 1 must be >=1. That is, the animal must have visited Arm 1 at least once. Do the same for each of the other arms.

2.Connect the resulting eight condition boxes in parallel using the N of All operator. See Operators

3.Set the maximum trial duration to 10 minutes to stop tracking in the case the animal fails to visit four arms in the meantime. See To set a maximum duration for your trials

Below: Trial Control sequence for an eight-arm radial maze. The trial must stop when the animal has visited four of the arms at least once. 1, 2,... 8: In zone condition boxes for Arm 1,2,... 8 respectively. A condition is met when the Frequency of In zone for that arm is greater than or equal to 1. A: Operator that checks that at least four of the eight conditions are met. B: Stop track box. When four conditions are met, the trial is stopped.

See also

▪Operators .