Joshua M. Epstein's Agent zero : toward neurocognitive foundations for PDF

By Joshua M. Epstein

ISBN-10: 0691158886

ISBN-13: 9780691158884

ISBN-10: 1306282837

ISBN-13: 9781306282833

ISBN-10: 1400848253

ISBN-13: 9781400848256

The ultimate quantity of the Groundbreaking Trilogy on Agent-Based Modeling

In this pioneering synthesis, Joshua Epstein introduces a brand new theoretical entity: Agent_Zero. This software program person, or "agent," is endowed with exact emotional/affective, cognitive/deliberative, and social modules. Grounded in modern neuroscience, those inner parts engage to generate saw, usually far-from-rational, person habit. while a number of brokers of this new style flow and engage spatially, they jointly generate an remarkable diversity of dynamics spanning the fields of social clash, psychology, public wellbeing and fitness, legislation, community technology, and economics.

Epstein weaves a computational tapestry with threads from Plato, Hume, Darwin, Pavlov, Smith, Tolstoy, Marx, James, and Dostoevsky, between others. This transformative synthesis of social philosophy, cognitive neuroscience, and agent-based modeling will fascinate students and scholars of each stripe. Epstein's computing device courses are supplied within the ebook or on its Princeton collage Press web site, in addition to videos of his "computational parables."

Agent_Zero is a sign departure in what it comprises (e.g., a brand new synthesis of neurally grounded inner modules), what it eschews (e.g., normal behavioral imitation), the phenomena it generates (from genocide to monetary panic), and the modeling arsenal it deals the medical community.

For generative social technological know-how, Agent_Zero offers a groundbreaking imaginative and prescient and the instruments to achieve it.

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For a lucid nontechnical exposition, see LeDoux (2002). , freezing). Indeed, LeDoux and others have mapped the fear circuit’s operation in considerable detail and have made huge strides in explaining the observed capacity for associative fear acquisition, retention, and extinction by Hebbian plasticity and long-­term potentiation at the cellular-­synaptic level (LeDoux, 2002, pp. 79–80). The same Hebbian picture is mirrored in the higher-­level Rescorla-­ Wagner (RW) equations, which we shall employ in the affective component of the model.

Also, important evidence of emotional contagion comes from fMRI studies of the amygdala, and if we didn’t know anything about the amygdala, these images would mean very little. Understanding, then, that unconscious fear acquisition is what we have in mind, we now discuss the elementary neuroscience of fear as prelude to the famous Rescorla-­Wagner equations of conditioning, all en route to our more general model of behavior in groups. 1. The Passions: Fear Conditioning Humans are born with a variety of innate endowments or capacities.

48 Mathematical Model _27 to paraphrase William James (1884), We don’t run because we fear the bear. 49 Adaptive Innate Capacity A range of stimuli will elicit this unconscious activation—we instinctively crouch protectively at unexpected explosions nearby or when unexpected projectiles dart at our heads. In other words, certain sensory inputs will innately generate the threat response. In rats, for example, cats are in this set of innate threats. In fact, rats bred in colonies completely isolated from cats for many generations will freeze upon first exposure to cat urine (LeDoux, 2002, p.

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Agent zero : toward neurocognitive foundations for generative social science by Joshua M. Epstein

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