How Introvert and Extrovert Brains Differ: 6 Differences According to Science

introvert and extrovert brains differ

Summing Up

The information received by an introvert’s brain from the external world travels through a longer pathway called the acetylcholine pathway. In this pathway, the information crosses many different areas, like the right front insular, which is involved with empathy, emotions and introspection, then the Broca’s region, which is responsible for self-talk, words, and speech. It also crosses the right and left frontal lobes and the hippocampus, each having individual functions.

On the other hand, information in the extrovert brain passes through the shorter pathway called the dopamine pathway, which crosses regions in the brain that process sight, sound, taste, and touch. The acetylcholine pathway, which the information in an introvert’s brain takes, is much longer than the dopamine pathway. Hence, introverts take more time to respond and speak and tend to overthink things.

Now that you know that the makeup of your brain is different, it will probably make more sense to you that you naturally prefer quieter and more peaceful environments and avoid highly stimulating environments.


References:

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  • Vorkapić, S.T., 2017. The Proposal of Investigating the Possible Extraversion Effect in the Neurofeedback.
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  • Martin, E., 2014. Tips for Teaching: The Brain Game: Teaching Strategies for Introverted vs. Extroverted Students. Bulletin for the Study of Religion43(3), pp.39-46.
  • Khalil, R., 2016. Influence of extroversion and introversion on decision-making ability. International Journal of Research in Medical Sciences4(5), pp.1534-1538.
  • Berridge, K.C., 2004, April. Pleasure, unfelt affect, and irrational desire. In Feelings and emotions: The Amsterdam symposium (pp. 423-454). Cambridge: Cambridge University Press.
  • Cohen, M.X., Young, J., Baek, J.M., Kessler, C. and Ranganath, C., 2005. Individual differences in extraversion and dopamine genetics predict neural reward responses. Cognitive brain research25(3), pp.851-861.
  • Fu, Y., 2013. On the nature of extraversion: variation in conditioned contextual activation of dopamine-facilitated affective, cognitive, and motor processes. Frontiers in human neuroscience7, p.288.
  • Holmes, A.J., Lee, P.H., Hollinshead, M.O., Bakst, L., Roffman, J.L., Smoller, J.W. and Buckner, R.L., 2012. Individual differences in amygdala-medial prefrontal anatomy link negative affect, impaired social functioning, and polygenic depression risk. Journal of Neuroscience32(50), pp.18087-18100.
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