I think both can happen. A thoughtform can be posessed essentially by another consciousness, or it can continue as it’s own consciousness. I’m an animist so I see consciousness in everything.
Knowing that the electric filed of humans reaches 20 to fifty feet beyond and to extend in networked into the Earth via ley lines and geological veins of energy, It would be strange if we weren’t influenced to an extent by everything that interacts with that field. The closer into awareness and center, the bigger the effect.