How does the Sensitivity levels of Motion Detection affect what you would see from camera recording?

3 Sensitivity levels of Motion Detection

Sensitivity levels	Detection levels
High	Camera records videos when it detects a small motion, such as yawning or stretching.
Medium (Default)	Camera records videos when it detects a normal daily motion, such as people walking around the house.
Low	Camera records videos when it detects a large motion, such as children are chasing or jumping around.

I want the monitor to detect my baby's motion. How should I set in my mobile device?

Where can I find the video/ event clips that were recorded with Motion Detection?