human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Epistemic Actions in Science Education"
  Abstract: Epistemic actions are actions in the physical environment taken with the intent of gathering information or facilitating cognition. As students and geologists explain how they integrated observations from artificial rock outcrops to select the best model of a three-dimensional geological structure, they occasionally take the following actions, which we interpret as epistemic: remove rejected models from the field of view, juxtapose two candidate models, juxtapose and align a candidate model with their sketch map, rotate a candidate model into alignment with the full scale geological structure, and reorder their field notes from a sentential order into a spatial configuration. Our study differs from prior work on epistemic actions in that our participants manipulate spatial representations (models, sketches, maps), rather than non-representational objects. When epistemic actions are applied to representations, the actions can exploit the dual nature of representations by manipulating the physical aspect to enhance the representational aspect.

Connected through hyperedge HE-1 (induced by source paper "Identifying Locations and Directions on Field and Representational Mapping Tasks: Predictors of Success"):
  with members:
    - "Hand-Held Support for Spatial Awareness for the Dismounted Soldier"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Mathematics