Well to I don't know what you mean by in the following cases but, a dependent variable is the variable being tested and measured and also relies on the independent. While on the other hand the independent variable is the variable that is being changed or controlled.
Answer:
The human brain is the command center for the human nervous system. It receives signals from the body's sensory organs and outputs information to the muscles.
One part of the brain is the right brain, and the other part of your brain is the right brain. What ever you think goes to your brain first and lets the operates to the body. If your are wanna move right your right brain will tell your body to move right.