Answer: Activation-synthesis model.
Step-by-step explanation:
Activation-synthesis model is the model determines that psychological processes of mind tend to produce dreams. Different types of neural activities tend to happen in brain as a person is asleep. These neural activities send signals to brain to create dreams.
According to the question, Anastasia got miking of cow dream even though she does not know about process and cow because of neural signals.This indicates that dream is caused due to activation-synthesis model.