YNICL Journal 2022 Journal Article
The relationships between subclinical OCD symptoms, beta/gamma-band power, and the rate of evidence integration during perceptual decision making
- Alec Solway
- Isabella Schneider
- Yuqing Lei
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Alec Solway
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2RLDM Conference 2013 Conference Abstract
Optimal Task Decomposition
- Alec Solway
- Natalia Cordova
- Debbie Yee
- Andrew Barto
- Yael Niv
- Matthew Botvinick
Reinforcement learning has provided a rich framework for understanding the computational sub- strates underlying human decision making. Most work has so far has focused on simple decision problems with small state spaces. More recently researchers have begun applying ideas from hierarchical reinforce- ment learning, and the options framework in particular, to address how human decision making may scale. This framework specifies how the computational complexity associated with both learning and planning in high-dimensional state spaces may be reduced through the use of temporal abstraction. In addition to primitive actions that lead to transitions between adjacent states, the agent can execute options that lead to transitions between distant states. While there is now evidence that humans make use of options, it is unclear how they come to select which options are useful in the first place. We present option selection as a Bayesian model comparison problem and show that the options people select are those corresponding to the maximal model evidence.