What Your Brain Activity Reveals About Your Personality Type

Ask a Jungian analyst about cognitive functions, and you'll hear about 'psychic energy flowing through archetypal channels.' Ask a neuroscientist, and they'll tell you there's no evidence functions exist. The truth, as usual, annoys both sides, leaving a fascinating gap between subjective experience and objective science.

Lisa’s stomach tightened. Ten minutes into the brainstorming session, her colleagues were firing off ideas like a pinball machine. She had a good one—a great one, even—but the thought of breaking into their rhythm made her throat close up.

As the discussion heated up, Lisa felt her mind racing. Instead of articulating her thoughts, she felt like an outsider, overwhelmed by the rapid-fire suggestions. This wasn’t a new feeling; it was a recurring source of anxiety in her work life.

After several weeks of this turmoil, Lisa attended a workshop where Dr. Dario Nardi was presenting his findings on the neuroscience of personality. Intrigued by his EEG research, she learned how different personality types show different brain patterns. This sparked her curiosity about the cognitive functions at play in her own experiences.

What Cognitive Functions Are at Play?

In his 2011 book, 'Neuroscience of Personality,' Dario Nardi's EEG studies on 60 participants found that cognitive functions manifest through specific brain patterns. For instance, extraverted sensing (Se) types, such as ESFPs, display what Nardi calls a 'tennis hop' brain pattern. This is characterized by low amplitude and out-of-sync activity across the neocortex, which helps them adapt rapidly to new tasks.

Conversely, introverted intuition (Ni) types like Lisa exhibit a 'whole-brain, zen-like pattern.' This involves synchronized, medium-low frequency, high-amplitude brain waves, especially when they envision future possibilities. It’s a stark contrast that can make Lisa feel overwhelmed in chaotic environments.

Understanding these differences can help Lisa make sense of her struggles. While her colleagues thrive in chaotic environments, her preference for deeper, more introspective thought processes may lead her to feel sidelined in fast-paced discussions.

Where the Friction Comes From

The friction in Lisa's case stems from a clash of cognitive styles. Dominant judging types, like her colleague who leads discussions, may activate the left prefrontal cortex, focusing on analysis and decision-making. Meanwhile, perceiving types, including Lisa, often engage the right prefrontal cortex, which favors exploration and flexibility.

This difference in how their brains are wired creates tension. Lisa's need to process ideas at her own pace clashes with her team’s demand for quick responses. A 2015 study in the Journal of Applied Psychology found that these opposing patterns can lead to misunderstandings, leaving Lisa feeling sidelined while her colleagues perceive her as disengaged.

What Actually Helped

After attending Nardi's workshop, Lisa began trying a few new tactics to bridge the gap between her cognitive style and that of her team. For instance, she started preparing visual aids for meetings—something that Nardi suggests can optimize communication for introverted types. This approach allowed her to express her ideas more clearly and engage her colleagues effectively.

Additionally, she initiated one-on-one check-ins with her teammates to discuss feedback outside the pressure of group dynamics. This provided a space for her to articulate her thoughts without the chaos of a larger meeting. Gradually, she noticed her confidence growing as her colleagues began to appreciate her unique insights.

What You Can Learn From This

Lisa's journey shows a few key lessons for anyone handling different personalities in a professional setting. Understanding cognitive functions can illuminate why certain situations feel challenging.

1. This week, prepare one visual slide for your most important point in a meeting.

1. Identify the fastest talker on your team and schedule a 15-minute one-on-one with them.
2. Next time you feel overwhelmed in a meeting, use this exact phrase: ‘Can we pause for 10 seconds? I need to process that.’
3. Use visual aids—they can bridge gaps in understanding and make your ideas more accessible to others.