Decision prioritization and causal reasoning in decision hierarchies
Fig 2
Transition probabilities between nodes of the decision tree.
(A) In all the panels, the nodes of the decision tree were re-arranged following the convention depicted in Fig 1D. The re-arrangement can be interpreted as-if rightward were the true direction of motion at every bifurcation (indicated here by the right-pointing arrows). (B-E) Red lines identify the most frequent transitions between pairs of nodes. Transitions from nodes at levels 1–3 are shown in panel B–D, and transitions from leaf nodes are shown in panel E. The width of the line from node x to node y is proportional to the probability of transitioning from x to y given that last query was to node x. Unlikely transitions (conditional probability < 0.075) were omitted. (B–D) After querying an internal node, the more frequent actions were choosing one of the two child-nodes, or re-querying the same node. The ribbon corresponds to re-queries. Because of the notation convention, the true direction of motion is rightward at every internal node. (E) From left to right, transitions from leaf nodes 8 to 14. We excluded the target (node 15) since querying it terminates the trial.