Since jessica suffered a head injury in a car accident 3 months ago, she has not experienced dreams as she had in the past. she used to dream vivid, active dreams. which part of her brain was most likely affected during the car accident, which is related to her problem dreaming

The part of the brain mentioned above is pons. The pons is a segment of the mind stem, situated over the medulla oblongata and underneath the midbrain. In spite of the fact that it is little, at roughly 2.5 centimeters in length, it serves a few imperative capacities. 
In the mind, the pons is a horseshoe-molded structure in the cerebrum stem that is significant to life. It comprises of nerve strands that interface the cerebrum and the cerebellum and extensions tangible data between the left and right sides of the equator of the mind.

Iam not sure sorry