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| The Brain as a Three-Level Structure |
The Brain as a Three-Level Structure
Paul MacLean developed a three-level model of brain structure and function . His model was based on an evolutionary approach to human development. His three-level model (triune brain) consists of the reptilian complex, the limbic system, and the neocortex. The biological aspects of this model were outlined in section 1.1, and the corresponding components were labelled the hindbrain, the mid-brain complex, and the forebrain. In this sub-section, we would like to consider the psychological properties of this model.
Reptilian complex (hindbrain)
MacLean describes the reptilian complex as rigid, obsessive, compulsive, ritualistic, and paranoid.
Limbic system (mid-brain complex)
The limbic system devotes much of its energy to emotions, especially the “four F’s” of psychology – feeding, fighting, fleeing, and sexual behaviour.
Neocortex (forebrain)
The neocortex makes up about two-thirds of the mass of the human brain. The neocortex manages considered thought, fine motor control, planning for future events, spatial interpretations of the environment, language, and artistic endeavours.
Paul MacLean developed a three-level model of brain structure and function . His model was based on an evolutionary approach to human development. His three-level model (triune brain) consists of the reptilian complex, the limbic system, and the neocortex. The biological aspects of this model were outlined in section 1.1, and the corresponding components were labelled the hindbrain, the mid-brain complex, and the forebrain. In this sub-section, we would like to consider the psychological properties of this model.
Reptilian complex (hindbrain)
MacLean describes the reptilian complex as rigid, obsessive, compulsive, ritualistic, and paranoid.
Limbic system (mid-brain complex)
The limbic system devotes much of its energy to emotions, especially the “four F’s” of psychology – feeding, fighting, fleeing, and sexual behaviour.
Neocortex (forebrain)
The neocortex makes up about two-thirds of the mass of the human brain. The neocortex manages considered thought, fine motor control, planning for future events, spatial interpretations of the environment, language, and artistic endeavours.
