Two-Stage Task
Unreviewed
This task assess two types of reinforcement learning (RL): model-free and model-based RL. In this task, participants make two sequential decisions that navigate them through two "stages" defined by different stimuli. First-stage choices are associated with one of two second stages (e.g., 2a and 2b): one first-stage choice leads to 2a 70% of the time and 2b 30% of the time, while the opposite is true of the other first-stage choice (i.e. 2a occurs 30% of the time and 2b occurs 70% of the time). Each second-stage choice is associated with some probability of receiving a reward. This probability changes slowly over time, requiring continuous learning in order to succeed at the task.
Definition contributed by JShaw
Definition contributed by JShaw
Two-Stage Task has been asserted to measure the following CONCEPTS
Phenotypes associated with Two-Stage Task
Disorders
No associations have been added.Traits
No associations have been added.Behaviors
No associations have been added. CONDITIONS
Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.
CONTRASTS
In the Cognitive Atlas, we define a contrast as any function over experimental conditions. The simplest contrast is the indicator value for a specific condition; more complex contrasts include linear or nonlinear functions of the indicator across different experimental conditions.
INDICATORS
No indicators have yet been associated.
An indicator is a specific quantitative or qualitative variable that is recorded for analysis. These may include behavioral variables (such as response time, accuracy, or other measures of performance) or physiological variables (including genetics, psychophysiology, or brain imaging data).
Term BIBLIOGRAPHY
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