For your mind to operate properly, it needs to have a functioning cerebrum. This part of your brain takes up a total of two pounds of the body weight of the average adult. It is one of the best developed portions of the brain, and you can easily see it in most images of the human mind. This structure consists of billions of neurons that are responsible for the way you think, act and experience things. It is responsible for your personality and thinking. In addition, the cerebrum is in control of language and your senses. If this part of your mind becomes damaged, it can have severe repercussions in your daily life.
The Cerebrum Function and Structure
In essence, the cerebrum consists of four lobes. These lobes are divided in half by a part of the brain known as the corpus callosum that links them together. This section passes messages between the right and left side of the cerebrum. Although it seems counterintuitive, the right half your cerebrum actually controls the left half of your body. The left half of your cerebrum controls the right half of your body. Altogether, there are four lobes in total that make up the cerebrum: the occipital lobe, the parietal lobe, the frontal lobe and the temporal lobe.
The Four Lobes of the Cerebrum
Occipital Lobe: The occipital lobe is the portion that is located toward the back of the brain. This portion of your brain is responsible for your ability to see things and perceive the things that you see. When you look at something, the retina within your eyes sense out a message to the occipital lobe. Once there, your brain interprets the message, recognizes the objects and lets you know what you are currently seeing.
Parietal Lobe: This portion of your mind is placed just behind your frontal lobe. It appears to be on the top of your brain toward the back. When this part of your cerebrum is functioning properly, it will help you to understand senses like pain, temperature, pressure, touch and taste. Some of your ability to speak and understand language is controlled by this portion of your brain.
Frontal Lobe: Your frontal lobe is located directly behind your eyebrows. Like the name suggests, it situated at the front of your brain behind your forehead. This part of your mind is responsible for things like creativity, analytic thinking, emotions, planning, goal setting, movement and judgment. It also happens to be responsible for inhibiting your behaviors and making good judgment calls. In one extreme example, a railway worker had a rail go through their frontal lobe. Although they amazingly managed to live, he went from being a quiet, mild-mannered fellow to a cursing loudmouth overnight. Later on, scientists realized that this is due to his frontal lobe being injured during the disaster.
Temporal Lobe: This part of the mind is located under your frontal lobe and between your temples. It is in control of hearing, emotion, language functions and auditory processes. When you hear something, it is your temporal lobe that interprets the sounds understood by your ears and helps you to understand them.
The Layers of the Cerebrum
Other than being divided into four parts, your cerebrum is also divided into two different layers. On the outer layer, you have something that is called the cerebral cortex. This portion of the cerebrum is normally involved in creating your personality and allowing you to coordinate different movements. Whenever you hear a scientist or someone talking about gray matter in popular culture, they are normally talking about the cerebral cortex.
The other layer of your cerebrum is commonly known as the white matter of your brain. You need this section of your brain because it allows your mind to communicate and send messages. In essence, the white matter is kind of like a system of telephone poles. All of the network of fibers are connected throughout your mind, and the white matter allows the messages to be communicated. Through the four lobes and the two different layers, the cerebrum is designed to help you carry on with normal life, speak, hear, think and move. Although there are other sections in your brain, the cerebrum is one of the most important pieces of the puzzle.