What focuses on the random electrical energy that the brain produces during REM sleep, possibly as a result of changes in the production of particular neurotransmitters?

The correct answer is - The activation- synthesis theory.

Explanation:

The activation synthesis theory focuses on the microbiological explanation of dream development by the producing random electrical energy by the brainstem during REM sleep.

This energy is created by the production of the particular neurotransmitters to cerebral cortex's to make a image or sense.

Thus, the correct answer is - the activation synthesis theory.