Collaborative mechanisms

I should choose among this list of processes involvbed in collaborationm the one that I have to study for my phd :

Negotiation/grounding/mutual modelling/abstraction/group memory/mutual regualtion/division of labour/shared cognitive load/explanation/internalisation/appropriation

The idea is to study the impacts of space-based awareness (location…) on the chosen process. For instance, what are the effects of location awareness on mutual modelling ? Does spatial information contributes to the construction of a mental model of one’s partner ?…