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      In Flow Between Fascination, Awe, Despair and Trance: Algorithmically controlled live online trading experience

      Proceedings of EVA London 2020 (EVA 2020)

      AI and the Arts: Artificial Imagination

      6th July – 9th July 2020

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          Flow, performance and moderators of challenge-skill balance

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            Time-Series Plots Integrated in Parallel-Coordinates Displays

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              Additive and interactive effects of spatial attention and expectation on perceptual decisions

              Spatial attention and expectation are two critical top-down mechanisms controlling perceptual inference. Based on previous research it remains unclear whether their influence on perceptual decisions is additive or interactive. We developed a novel multisensory approach that orthogonally manipulated spatial attention (i.e. task-relevance) and expectation (i.e. signal probability) selectively in audition and evaluated their effects on observers’ responses in vision. Critically, while experiment 1 manipulated expectation directly via the probability of task-relevant auditory targets across hemifields, experiment 2 manipulated it indirectly via task-irrelevant auditory non-targets. Surprisingly, our results demonstrate that spatial attention and signal probability influence perceptual decisions either additively or interactively. These seemingly contradictory results can be explained parsimoniously by a model that combines spatial attention, general and spatially selective response probabilities as predictors with no direct influence of signal probability. Our model provides a novel perspective on how spatial attention and expectation facilitate effective interactions with the environment.
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                Author and article information

                Contributors
                Conference
                July 2020
                July 2020
                : 269-270
                Affiliations
                RIXC – Centre for New Media Culture

                Lencu 2, LV-1010 Riga, Latvia
                Article
                10.14236/ewic/EVA2020.48
                © Garančs. Published by BCS Learning and Development Ltd. Proceedings of EVA London 2020

                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

                Proceedings of EVA London 2020
                EVA 2020
                30
                London
                6th July – 9th July 2020
                Electronic Workshops in Computing (eWiC)
                AI and the Arts: Artificial Imagination
                Product
                Product Information: 1477-9358 BCS Learning and Development Ltd
                Self URI (journal page): https://ewic.bcs.org/
                Categories
                Electronic Workshops in Computing

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