This question is related to this question about introverts becoming exhausted after extended social events on cognitive sciences stack exchange.
As I read more on the topic of human extraversion-introversion, I keep seeing the mention of "energy" which extraverts draw from social engagements and introverts expend in such engagements.
- When energy is drained, the state can be called "exhaustion", depletion, being drained
- When enough energy is accumulated, the state can be called "elation", being energized
The idea makes sense, and I see many diverse writers use it, but nobody defines what this energy is in a biological sense.
What is the biological mechanism behind "energy" spent/gained in social interactions - what is it in brain terms? I'm looking for an answer like: Dopamine in X part of the brain? Mirror neuron activation? Amygdala overreacting?
I found a quote from this article on introversion, although it does not seem to have any sources listed
Research has shown that the mind of an introvert works differently than the mind of an extrovert. Introverts have more pronounced activity in the parts of the brain that deal with long term memory, planning, complex thinking and organizing. Our introverted mind is always turning and running and because of this, we need very little outside stimulation. The extrovert's brain has more pronounced activity in the areas associated with sensing and processing information from the outside. That's why extroverts seek outside stimulation
What are the scientific names of the brain regions described in the quote above?