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The Science of Human Motivation: Understanding Our Three Brains



In the world of business, building long-term, loyal customer relationships is crucial to success. This involves understanding your customers' psychological needs and motivations, and recognizing that a one-time transactional sale is not enough. Fortunately, in recent years, there have been many experimental studies and field research projects that have contributed to our understanding of human motivation. This has led to the development of a "science of human motivation".


The Science of Human Motivation


To understand this science, we must first examine the evolution of the human brain. The triune brain theory, introduced by Dr. Paul D. MacLean, suggests that three distinct brains co-inhabit the human skull: the R-complex (reptilian brain), the limbic system, and the neocortex. Understanding the functions and interactions of these three parts of the brain is essential to understanding human motivation and behavior.


Our Three Brains: Understanding the Evolutionary Roots of the Human Brain

When it comes to understanding the human brain, it can be easy to feel overwhelmed by the sheer complexity of this remarkable organ. However, by examining the brain in the context of its evolutionary history, we can begin to unravel the mysteries of its anatomy and better understand how it shapes our behavior and decision-making.

One of the most influential models for understanding the human brain in terms of its evolutionary roots is the triune brain theory developed by neuroscientist and psychiatrist Dr. Paul D. MacLean in the mid-twentieth century. According to this theory, the human brain can be divided into three distinct parts that emerged successively in the course of evolution:

  1. The R-complex (or reptilian brain): The oldest and most primitive part of the human brain, which first appeared in fish nearly 500 million years ago. This part of the brain is responsible for controlling vital involuntary functions such as heart rate, breathing, and body temperature, and is also responsible for our fight-or-flight response.

  2. The limbic system: This part of the brain evolved in mammals around 150 million years ago and is responsible for emotions, personal identity, aggression, nurturing, and memory functions. It is composed of the hypothalamus, the amygdala, and the hippocampus.

  3. The neocortex (or cerebral cortex): This part of the brain first emerged in primates around 30 to 40 million years ago and is responsible for advanced cognitive functions such as language, abstract thought, imagination, and consciousness.

How the Three Brains Work Together


Although these three parts of the brain evolved at different times and for different purposes, they are all interconnected and work together to shape our behavior and decision-making. The reptilian brain provides us with our survival instincts, while the limbic system is responsible for our emotions and memory functions. The neocortex, meanwhile, allows us to reason, think abstractly, and imagine new possibilities.

So why is it important to understand the evolutionary roots of the human brain? For one thing, it helps us appreciate the incredible complexity and adaptability of this organ, and how it has evolved over millions of years to help us survive and thrive in a constantly changing environment.

But more importantly, understanding the brain's evolutionary history can also help us better understand the behavior and decision-making of our clients, customers, and colleagues. For example, knowing that trust is a critical component of human survival and commerce can help us build stronger relationships with our clients and foster greater loyalty and engagement.

In today's fast-paced and constantly changing world, understanding the evolutionary roots of the human brain is more important than ever. By leveraging this knowledge to build stronger relationships, make better decisions, and foster greater trust and loyalty, we can navigate the challenges of the modern world with greater ease and confidence.


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