A Theory of Extended Working Memory and its Role in Online Conversation Dynamics.
2019
Caused by biological limits on cognition, information overload has shown to impact behavior of online social media users, affecting behavior in online conversations. We combine concepts from working memory theory with the extended self theory to formulate a novel theory of extended working memory. This theory is implemented as a mechanistic, agent-based model of information storage and attention loss under information overload and validated on the discussions of a cyrptocurrency community on Twitter. Results indicate that volume and participant count in individual conversations are sensitive to the rate of attention loss and extended working memory capacity. Further experiments allow extended working memory to replicate and explain several online conversation phenomena from the literature, previously lacking a mechanistic explanation. Reconceptualizing information spread through working memory and extended self theories, allows us to move beyond analogies to biologically-inspired viral spread, into richer representations of online conversation dynamics, enabling a deeper understanding of how (dis)information is transmitted over social media.
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