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Related Concept Videos

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Microbial Interactions: Cooperation

Microbial cooperation involves beneficial interactions in which different species work together for individual or mutual advantage. These interactions can profoundly influence ecological dynamics and evolutionary processes, and they are essential to many pathogenic and symbiotic relationships.Nematode–Bacteria CooperationA striking example is the relationship between the Gram-negative bacterium Xenorhabdus nematophila and the parasitic nematode Steinernema carpocapsae. Juvenile nematodes...
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Microbial Interactions: Mutualism

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Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
Cooperative Allosteric Transitions01:58

Cooperative Allosteric Transitions

Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
Cooperative Allosteric Transitions01:58

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Related Experiment Video

Updated: May 15, 2026

Design, Surface Treatment, Cellular Plating, and Culturing of Modular Neuronal Networks Composed of Functionally Inter-connected Circuits
10:32

Design, Surface Treatment, Cellular Plating, and Culturing of Modular Neuronal Networks Composed of Functionally Inter-connected Circuits

Published on: April 15, 2015

Network modularity promotes cooperation.

Marianne Marcoux1, David Lusseau

  • 1Institute of Biological and Environmental Sciences, Zoology Building, Tillydrone Avenue, University of Aberdeen, Aberdeen AB24 2TZ, Scotland, United Kingdom. marianne.marcoux@gmail.com

Journal of Theoretical Biology
|December 25, 2012
PubMed
Summary

Network modularity, the grouping of social networks, promotes cooperation in evolutionary game theory. This finding explains cooperation

Area of Science:

  • Evolutionary Biology
  • Game Theory
  • Network Science

Background:

  • Evolutionary biology often predicts selfish individuals, yet cooperation is common.
  • Game theory suggests cooperation evolves in structured populations like social networks.
  • Social networks exhibit modularity, a key feature not previously studied for its impact on cooperation.

Discussion:

  • This study investigates the role of network modularity in the evolution of cooperation.
  • Simulations of the prisoner's dilemma game were conducted on social networks with varying modularity.
  • Modularity was found to significantly promote cooperative behaviors.

Key Insights:

  • Network modularity is a crucial factor driving the evolution of cooperation.
  • Cooperation can emerge through network structure alone, without complex social mechanisms.

More Related Videos

Modeling the Functional Network for Spatial Navigation in the Human Brain
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Modeling the Functional Network for Spatial Navigation in the Human Brain

Published on: October 13, 2023

Related Experiment Videos

Last Updated: May 15, 2026

Design, Surface Treatment, Cellular Plating, and Culturing of Modular Neuronal Networks Composed of Functionally Inter-connected Circuits
10:32

Design, Surface Treatment, Cellular Plating, and Culturing of Modular Neuronal Networks Composed of Functionally Inter-connected Circuits

Published on: April 15, 2015

Modeling the Functional Network for Spatial Navigation in the Human Brain
05:55

Modeling the Functional Network for Spatial Navigation in the Human Brain

Published on: October 13, 2023

  • Modularity facilitates cooperation in 2-person prisoner's dilemma games.

    • Outlook:

    • Cooperation may evolve in a broader range of social contexts than previously understood.
    • Future research can explore modularity's influence in more complex evolutionary models.
    • This work offers a simplified mechanism for understanding cooperation's evolutionary basis.