Uploaded May 2021 | Updated September 2026, 1 hour ago
Last time, we established the possibility of the Triune Brain structure being common among extraterrestrial lifeforms in our universe. Under this model, the human brain consists of three overlapping brain structures. The reptilian brain is the earliest of these plug-in brains followed by the limbic brain, and finally, the Neocortex which dominates most of the human brain. But what if alien lifeforms on other worlds evolved so that the reptilian brain dominated their brains instead of the Neocortex as is the case with us humans? What would their mentality and behavior be like?
According to MacLean, the reptilian brain is known to play a major role in determining aggressive behavior, territoriality, ritualism, and the establishment of social hierarchies. This dull neurosystem, with its slavish dependence on programmed "hard-wired" behaviors, may be responsible for a great deal of human ritualistic and hierarchical behavioral patterns. For example, our political institutions and bureaucracies, our fertility dances, and our unparalleled aggressiveness and competitiveness are all seen as a result of our still functioning reptilian brain under the Triune Brain model. So, the reptilian mind is not characterized by "powerful passions and wrenching contradictions, but rather by a dutiful and stolid acquiescence to whatever behavior its genes and brains dictate."
Triune Brain Aliens Series:
youtube.com/playlist?list=PLVxAxdw4ctDZebCPbf9gISbtIhx3PJVvO
Last time, we established the possibility of the Triune Brain structure being common among extraterrestrial lifeforms in our universe. Under this model, the human brain consists of three overlapping brain structures. The reptilian brain is the earliest of these plug-in brains followed by the limbic brain, and finally, the Neocortex which dominates most of the human brain. But what if alien lifeforms on other worlds evolved so that the reptilian brain dominated their brains instead of the Neocortex as is the case with us humans? What would their mentality and behavior be like?
According to MacLean, the reptilian brain is known to play a major role in determining aggressive behavior, territoriality, ritualism, and the establishment of social hierarchies. This dull neurosystem, with its slavish dependence on programmed "hard-wired" behaviors, may be responsible for a great deal of human ritualistic and hierarchical behavioral patterns. For example, our political institutions and bureaucracies, our fertility dances, and our unparalleled aggressiveness and competitiveness are all seen as a result of our still functioning reptilian brain under the Triune Brain model. So, the reptilian mind is not characterized by "powerful passions and wrenching contradictions, but rather by a dutiful and stolid acquiescence to whatever behavior its genes and brains dictate."
Triune Brain Aliens Series:
youtube.com/playlist?list=PLVxAxdw4ctDZebCPbf9gISbtIhx3PJVvO










