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Humans have a brain that is much more developed than other organisms. Unlike animals, humans have their own advantages compared to other animals namely intelligence (intelligence). As a central nervous system organ that regulates all parts of the body unconsciously or consciously, friends' lives are heavily dependent on the brain, from moving hands to setting our heart rate. Our brains develop along with the influence of the environment around us. We are given the freedom to develop cognition and expand our brain tissue with experience. Our brains are created so that we can think and make decisions that most other organisms do not.
Other organisms such as bacteria, plants, and animals, have a central nervous system that functions like a brain, organizing all parts of the body of the organism with different functions, so that each organism has a distinctly different behavior. An American neuroscientist named Paul D. MacLean, theorized that the human brain has 3 layers which he calls the triune brain, which makes our brains function differently from other organisms. Here are the 3 layers and functions of the brain.
1. Reptile Brain, Giver Instinct To Survive
Perhaps friends are surprised to hear his name, but the deepest part of our brain has a structure similar to that of a reptile's brain, so named after that. This reptilian brain is responsible for the instinct to survive. Roughly speaking, the instinct for survival is described to be 4 behaviors: Feeding, Fighting, Fleeing, Reproduction. Thus, the reptile's brain regulates behaviors such as aggression, the setting of its own territory, and non-verbal communication. For example, crocodiles fight to fight over their respective territories from other crocodiles. His lust is surprising, but humans do have one of the brain layers similar to the reptile's brain. But why not behave like human behavior? Eits, wait there are 2 other brain layers.
2. Limbic brain, regulator of feeling and motivation
The second brain layer, located just above the reptile brain. Unlike reptiles, mammals and humans have a limbic brain that is more callous. The limbic brain in humans is responsible for feelings and motivations as well as the ability to have memory and learning, so that organisms that have limbic brains behave more flexibly or not based on instinct alone. Behavior caused by this limbic brain for example, the mother who has a sense to care for her child, using voice communication, following the parent behavior.
3. NeoCortex's brain, the intelligence regulator
The last layer or outermost layer is called the NeoCortex layer. NeoCortex's brain is only owned by some high-level mammals and certainly humans. With the NeoCortex brain, humans can be more sensitive to the external environment more than other organisms, such as motor decision-making based on stimuli provided from the environment, memory and learning abilities are much more developed, abstract and rational thinking abilities. The existence of NeoCortex's brain also allows humans to use language, a communication tool not shared by organisms other than humans. In addition, this layer gives us the ability to introspect, think with common sense, and the ability to plan something (planning).
As humans, we can organize ourselves with common sense, which is not shared by other organisms. We are given the brain to know which one is good, which one is bad, which decisions we should take, and respond to our environment as we do not belong to other organisms. Well, as humans we should be aware that our brains are more developed and function much better, and do not behave like organisms that are lower level than humans.