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Self-Presentation: Self-Monitoring and Self-Handicapping02:05

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Related Experiment Video

Updated: Jun 19, 2026

Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device (ALDM) Test Systems
08:42

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Published on: May 5, 2015

Simple systems that exhibit self-directed replication.

J A Reggia, S L Armentrout, H H Chou

    Science (New York, N.Y.)
    |February 26, 1993
    PubMed
    Summary
    This summary is machine-generated.

    Self-replication can be simpler than previously thought. New computational models demonstrate that simplified, "unsheathed" structures can achieve nontrivial self-replication, challenging the notion of inherent complexity.

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    Area of Science:

    • Computational Biology
    • Artificial Life
    • Theoretical Computer Science

    Background:

    • Biological self-replication is often perceived as complex.
    • Early cellular automata models supported this view.
    • Simpler computational models like sheathed loops have been developed.

    Purpose of the Study:

    • To investigate simpler computational models of self-replication.
    • To explore the impact of structural simplification and altered assumptions on self-replicating systems.
    • To challenge the notion that self-replication is inherently complex.

    Main Methods:

    • Modification of existing sheathed loop models by "unsheathing" structures.
    • Altering assumptions regarding component symmetry.
    • Analysis of resulting self-replicating structures for size and complexity.

    Main Results:

    • A family of nontrivial self-replicating structures was generated.
    • Some new structures were substantially smaller and simpler than previously reported models.
    • Replication time and transition function complexity were analyzed in relation to structure size, cell state symmetry, and neighborhood.

    Conclusions:

    • Self-replication is not inherently complex.
    • It can emerge from local interactions in significantly simpler systems.
    • This research provides a new perspective on the fundamental nature of self-replication.