The Wiring Economy Principle: How Connectivity Affects Brain Anatomy
Author Information
Author(s): Raj Ashish, Chen Yu-hsien
Primary Institution: Weill Cornell Medical College
Hypothesis
Does brain anatomy determine its connectivity or vice versa?
Conclusion
The study confirms that the brain's observed anatomy is primarily a result of its connectivity optimization for wiring economy.
Supporting Evidence
- The brain's wiring cost is significantly lower than that of random networks.
- Connectivity structure shows near-optimal wiring cost compared to random networks.
- The observed brain anatomy results from the optimization of network connectivity.
Takeaway
The brain is like a city where the roads are built to save energy, and the way the city is laid out depends on how the roads are connected.
Methodology
The study used whole brain connectivity networks extracted from high-resolution diffusion MRI data and analyzed wiring costs using statistical methods.
Potential Biases
Potential biases in network extraction methods could affect the results.
Limitations
The study assumes that connection weights accurately reflect the number and density of fibers, which may not always be true.
Participant Demographics
Healthy adults with an average age of unspecified years.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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