[简答判断题]Directions: Judge whether each of the following statements is true or false. Put T for true or F for false in the bracket in front of each statement. If you think a statement is false, you must explain why you think so and give the correct version.The nerve cells that form the surface of the brain are called the cortex, which serves as the intellectual decision-maker, receives messages from the sensory organs, and initiates all voluntary actions.