“Activation-synthesis hypothesis suggests dreams are caused by brainstem activation during rapid eye movement (REM) sleep and stimulation of the limbic system (emotional motor system),” she says.
What is the biological explanation for dreams?
To Hobson, dreams are reactions to random nervous system stimuli, which the brain interprets as bizarre images and other sensory hallucinations. The activation-synthesis hypothesis, he asserts, assumes that dreams are as meaningful as they ca n be under the adverse working conditions of the brain in REM sleep.
What is the reason behind dreaming?
Most dreaming occurs during REM (rapid eye movement) sleep, which we cycle through periodically during the night. Sleep studies show our brainwaves are almost as active during REM cycles as they are when were awake. Experts believe the brainstem generates REM sleep and the forebrain generates dreams.