| Paper: | PS-2A.6 | ||
| Session: | Poster Session 2A | ||
| Location: | H Lichthof | ||
| Session Time: | Sunday, September 15, 17:15 - 20:15 | ||
| Presentation Time: | Sunday, September 15, 17:15 - 20:15 | ||
| Presentation: | Poster | ||
| Publication: | 2019 Conference on Cognitive Computational Neuroscience, 13-16 September 2019, Berlin, Germany | ||
| Paper Title: | Dissociating different forms of random exploration | ||
| Manuscript: | Click here to view manuscript | ||
| License: |  This work is licensed under a Creative Commons Attribution 3.0 Unported License. |
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| DOI: | https://doi.org/10.32470/CCN.2019.1032-0 | ||
| Authors: | Magda Dubois, Johanna Habicht, Jochen Michely, Rani Moran, Ray Dolan, Tobias Hauser, University College London, United Kingdom | ||
| Abstract: | The arbitration between making the most out of current knowledge (exploitation) and gathering new knowledge (exploration) is central to decision making. It has been proposed that humans use two distinct strategies for exploration. Directed exploration which targets high information conveying options, and random exploration which assigns weights to options relative to their value estimates. Here we suggest that humans use a third strategy, ’tabula rasa’ exploration, which in contrast to the traditional ’random’ exploration ignores all prior knowledge about the world. We tested this hypothesis using a novel three-bandit task in which the expected values, the prior information and the time horizon is manipulated. Using computational modeling, we found evidence for tabula rasa exploration in addition to directed and random exploration. | ||