Extraverts seek increased stimulation in part because their reticular formation is not easily stimulated.

Question

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Extraverts are thought to seek increased stimulation because their reticular formation, a part of the brain involved in regulating arousal and alertness, is less easily stimulated. This means they require more external stimulation to reach the same level of arousal or alertness as introverts.

Extraverts Seek Increased Stimulation in Part Because Their Reticular Formation