Brain Fact Friday on ”Using Neuroscience to Understand the Introverted and Extroverted Brain”

DID YOU KNOW “that the brains of introverts and extroverts are measurably different? MRI technology reveals that the dopamine reward network is more active in the brains of extroverts while introverts have more grey matter.”[i]  I posted a graphic this week with this brain fact written on it on social media, and it drew more feedback and comments than usual, making me think that this needs to be this week’s Brain Fact Friday. Welcome back to the Neuroscience Meets Social and Emotional Learning Podcast for BRAIN FACT FRIDAY and EPISODE #186 on “Using Neuroscience to Understand the Introverted and Extroverted Brain” DID YOU KNOW "That MRI technology reveals that the dopamine reward network is more active in the brains of extroverts while introverts have more gray matter?" (Deane Alban).On this episode you will learn:✔︎ Where the terms introvert and extrovert originated from.✔︎ Characteristics of an introvert, extrovert and what's in between.✔︎ 3 ways the Introverts' and Extroverts' brains differ.✔︎ How you can use this information to improve your workplace productivity and social life.   After I posted this graphic on social media that you can see in the show notes, John Harmon, Mind/Brain Researcher from EPISODE #170[ii] made a comment that really made me think, which is the purpose of this podcast. I want us to all think on a deeper level about understanding how our brain functions and impacts our results. He said “this makes sense to me since extroverts engage in more high energy personal interactions. Conversations trigger more emotional ups and downs, including rewarding thoughts and feelings. Especially feelings. With introverts, solitary activity tends to be much more even-keeled emotionally. Feelings of reward are weaker and less frequent. Therefore, the dopamine-laden neural networks that coincide with this feeling will be less active as well.” I had to stop and think after reading John’s thoughts, and it took me inside my own brain. I could those times that I’m stepping away from my usual introverted self where I’m studying, reading and researching in my quiet office, towards a more extroverted persona when I’m speaking in public, and interacting with larger groups, that this high energy interaction results in a spike of dopamine that I enjoy, but not for too long, as I crave the quiet and solitude of my office to bounce back, and recharge before another event. John’s comments made me want to dive a bit deeper into understanding our personality traits, especially over the holidays when we may be interacting with others more on a social level. If we can understand ourselves and others at the brain level, it might give us more clarity and awareness throughout this holiday season and into the New Year, helping us to see why we feel the way we do, and see beyond the labels of introversion and extroversion. When I typed introverts and extroverts into Pubmed.gov[iii] where I’ve been taught to look for the most current brain research, I found 170 articles ranging from different topics like Childhood experiences and adult health[iv] or Introversion/extroversion, time stress and caffeine: effects on verbal performance[v] I knew that this would be a good topic to take a closer look at if there were this many abstracts to read. If you want to dive deeper than I go with this Brain Fact, you can easily go to www.pubmed.gov and type in the words introvert and extrovert to see the studies that have been done on this topic. Also, if you want a quick reminder of how to tie in the most current neuroscience research to your next presentation, go back and listen to EPISODE #124 on “How to Be a Neuroscience Researcher in 4 Simple Steps”[vi] and you can easily add brain research to your work. So, back to this week’s Brain Fact Friday on Introverts and Extroverts. It was Carl Jung who created these terms in the first place, way back in 1920. He deduced that “extroverts gained their energy from their social interactions and exter