What do brain cells do if in an artificial brain and not attached to a body?

Question: What do brain cells do if in an artificial brain and not attached to a body?
- Keywords:
  artificial,
  brain,
  brain cells
Asked by 878heak43 to Carmel on 13 Nov 2017.
- Carmel Howe answered on 13 Nov 2017:
  
  they have a virtual environment so we give some of the brain cells stimuli and see how they respond. Then we can model how learning develops by introducing reinforcement drugs like dopamine or serotonin.

Question: What do brain cells do if in an artificial brain and not attached to a body?