Realizations Inc

Extreme Extraverts 15%

• Lower rates of blood flow to the brain.

• Shorter, fast-acting, and less complicated blood flow patterns involve brain areas related to sensory processing (except for smell), variety, and novelty.

• Dominant pathway is activated by dopamine, a brain chemical that is implicated in most, if not all, addictive behaviors (e.g., Adrenalin, amphetamines, and cocaine can increase dopamine levels).

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70%

Extreme Introverts 15%

• Higher rates of blood flow to the brain (higher rates of internal stimulation).

• Longer, more complex blood flow patterns involve brain areas related to internal experiences (e.g., planning, pondering, remembering, recalling).

• Dominant pathway is activated by acetylcholine, a neuro-transmitter that affects one’s alertness and ability to pay attention.