What would be the difference between Freudian theory and activation-synthesis theory in explaining a sexual dream?

The following questions are: 1. How does research on people with brain damage support the existence of perception without awareness?2. What would be the difference between Freudian theory and activation-synthesis theory in explaining a sexual dream?3. How did the experiment by Spanos and Hewitt (1980) demonstrate that hypnosis might be role playing and not an altered state of consciousness?4. What are the neurotransmitter mechanisms by which cocaine and amphetamines exert their effects?