The Metacontinuum: Bridging cellular composition to cognitive functions in brain organization

Area of Science:

• Neuroscience
• Systems Biology
• Computational Biology

Background:

• Brain organization arises from molecular, cellular, and systems-level processes.
• Integration of biological codes across different scales (molecular to neural) is poorly understood.
• Current theories of consciousness lack a framework connecting molecular and neural codes.

Purpose of the Study:

• To propose the metacontinuum hypothesis as a unifying framework for biological information processing.
• To connect molecular and neural codes across different scales of brain organization.
• To address the fragmentation problem in Code Biology by developing an integrated, multi-scale theory.

Main Methods:

• Review and synthesis of existing theories of consciousness and biological codes.
• Integration of evidence from connectomics, transcriptomics, and neuroimaging.
• Development of a theoretical framework (metacontinuum hypothesis).

Main Results:

• Molecular codes define cellular identity and circuit properties.
• Neural codes organize circuits into systems supporting cognition.
• Evidence shows mechanistic links between molecular and neural codes, such as gene expression gradients aligning with functional connectivity.

Conclusions:

• Molecular and neural codes are coupled through bidirectional regulatory mechanisms.
• The metacontinuum hypothesis provides a roadmap for understanding biological information flow from molecular interactions to neural computations.
• This framework supports the development of an integrated, multi-scale theory of life's coding architecture.