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Evolution of consciousness.
1Max-Planck-Institute for Brain Research, Frankfurt/Main, Federal Republic of Germany.
Summary
Consciousness may originate from the mammalian neocortex, where neural units called dendrons interact with mental units called psychons via quantum physics. This interaction provided early mammals with a survival advantage over reptiles.
Area of Science:
- Neuroscience
- Evolutionary Biology
- Quantum Physics
Background:
- The origin of consciousness remains a significant scientific challenge.
- Mammalian neocortex possesses unique structural and functional properties.
- Previous theories have not fully explained the link between brain structure and subjective experience.
Purpose of the Study:
- To propose a novel hypothesis for the origin of consciousness.
- To link the evolution of the mammalian neocortex to the emergence of conscious experience.
- To elucidate the potential mechanism of mind-brain interaction.
Main Methods:
- Hypothetical model integrating neurobiology, quantum physics, and evolutionary theory.
- Analysis of the structure and function of pyramidal cell apical dendrites in the neocortex.
- Postulation of neural receptor units (dendrons) and mental units (psychons).
Main Results:
- Consciousness is hypothesized to arise from the interaction between dendrons and psychons.
- Dendrons, formed by bundled apical dendrites, integrate complex sensory inputs.
- This interaction, potentially mediated by quantum physics, forms the basis of subjective experience in mammals.
Conclusions:
- The evolution of the neocortex and its dendrons provided an evolutionary advantage by enabling consciousness.
- Consciousness likely emerged in early mammals approximately 200 million years ago.
- Further investigation into avian brain structures like the Wulst is needed to understand consciousness in other species.