The brain fascinates me, and what happens in it profoundly impacts life and leadership. I even wrote a book about it, Brain-Savvy Leaders: The Science of Significant Ministry, and earned an executive master’s degree in the neuroscience of leadership. In this post I briefly explain how God organized our brain and how leaders and pastors sometimes lead from their lizard brains.
Imagine a tootsie roll pop with two centers. Pretend the inner center is a sweet tart surrounded by the gooey tootsie roll that in turn is surrounded by the hard outer candy. Our brains include three parts, like our imaginary tootsie roll pop.
The inner core, called the reptilian brain, regulates such functions as circulation and respiration. It’s on automatic pilot. Let’s say you’re sensitive to criticism about your preaching and in a conversation one of your leaders makes this comment: “I sure wish you’d go deeper with your Bible teaching. I’ve talked to a lot of people who are thinking about leaving because they aren’t getting fed.” I don’t think I’ve ever met a pastor who hasn’t heard a comment like that. If you’ve allowed chronic anxiety to build up inside, you might immediately react without thinking by sarcastically blurting, “I’m doing my best and if they want to leave, I’d be happy for them and me.” Such a comment threatens you, and you adapt to this threat from the automatic process of the reptilian part of your brain.
The second part of our brains (the gooey tootsie roll part), the mammalian brain, regulates other functions such as bonding, playing, nurturing and expressions like shock, sorrow and rejoicing. It also plays a role between pleasure and pain, flight and fight, and tension and relaxation. It serves as the seat of emotion. However, instead of maintaining balance between our reptilian brain and the third layer (the seat of rational thought), sometimes this part of the brain goes haywire. A pastor who enjoys preaching and has seen fruit from it, after enough critical comments, might face a depressive funk that his ministry is fruitless and that he should quit.
Both the reptilian and the mammalian parts of our brain compose about 15 percent, operate on automatic pilot and have many connecting brain cells called neurons. However, our cerebral cortex, the outer brain, encompasses 85 percent of our brain. At this level God has given us the ability to think, process, gain insight and choose. It is the seat of intentionality, whereas the other two parts are the seats of instinct.
In summary, these three brain parts compose our brain.
- Lizard brain (reptilian): On automatic pilot that acts without thinking. Lizards eat their young. And some churches eat their pastors.
- ‘Puppy’ brain (mammalian): The seat of emotions, also somewhat on automatic pilot.
- Main brain (neocortex): The place where we think, analyze, choose, create, symbolize and observe.
God gave us our entire brain, including the two lower brain levels. Those parts aren’t inferior, but limited. The neocortex can’t ignore them or else life would be rather dull. However, the neocortex allows us to “reflect on what is happening (insight) and plan for what might happen (foresight).”