Knowledge Base

Sub-rules (Continued)

When the mouse enters the shelter via a particular entry.

• A - Zone transition condition "Mouse enters the shelter via Entry zone 1" is met (A).
• B - Reference to Sub-rule 2.
• C - Action "Light on", followed by a Time condition "0.5 s" and an action "Light off".
• 5 - Sub-rules

Sub-rule 2 is a sub-rule defined to switch a light on for 0.5 seconds (see C for details). As soon as Sub-rule 2 is completed, control is taken back to Sub-rule 1 where the remaining instructions are executed.

Notes

• You can call sub-rules in up to 4 levels of existing sub-rules: for example, you can define the Start-Stop trial rule calling Sub-rule 1, which on its turn calls Sub-rule 2, which on its turn calls Sub-rule 3 etc, but you cannot have Sub-rule 4 calling Sub-rule 5.
• EthoVision XT informs you when you try to create more than 4 levels of sub-rules.
• If a sub-rule includes the reference to another sub-rule, it cannot be completed until the sub-rule that is called within it has been completed.
• You cannot create circular references amongst sub-rules. For example:
  • Insert a reference in the sub-rule that this reference calls.
  • In Sub-rule 1, insert a reference to Sub-rule 2, which on its turn contains a reference to Sub-rule 1.
• EthoVision XT informs you when you try to create a circular reference.

Conditions

Source: EthoVision XT 18 - THC - Trial and Hardware Control, Noldus Information Technology