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• W2875797025 abstract "Artificial intelligence has recently attained humanlike performance in a number of gamelike domains. These advances have been spurred by brain-inspired architectures and algorithms such as hierarchical filtering and reinforcement learning. OpenAI Gym is an open-source platform in which to train, test, and benchmark algorithms-it provides a range of tasks, including those of classic arcade games such as Doom. Here we describe how the platform might be used as a simulation, test, and diagnostic paradigm for psychiatric conditions.To illustrate how active inference models of game play could be used to test mechanistic and algorithmic properties of psychiatric disorders, we provide two exemplar analyses. The first speaks to the impact of aging on cognition, examining game-play behaviors in a model of aging in which we compared age-dependent changes of younger (n = 9, 22 ± 1 years of age) and older (n = 7, 56 ± 5 years of age) adult players. The second is an illustration of a putative feature of anhedonia in which we simulated diminished sensitivity to reward.These simulations demonstrate how active inference can be used to test predicted changes in both neurobiology and beliefs in psychiatric cohorts. We show that, as well as behavioral measures, putative neural correlates of active inference can be simulated, and hypothesized (model-based) differences in local field potentials and blood oxygen level-dependent responses can be produced.We show that active inference, through epistemic and value-based goals, enables simulated subjects to actively develop detailed representations of gaming environments, and we demonstrate the use of a principled algorithmic and neurobiological framework for testing hypotheses in psychiatric illness." @default.
• W2875797025 created "2018-07-19" @default.
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• W2875797025 date "2018-09-01" @default.
• W2875797025 modified "2023-10-01" @default.
• W2875797025 title "Active Inference in OpenAI Gym: A Paradigm for Computational Investigations Into Psychiatric Illness" @default.
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• W2875797025 doi "https://doi.org/10.1016/j.bpsc.2018.06.010" @default.
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