Freud wrote about his then new theory in his book, The …show more content…
That is, until Harvard psychiatrists Allan Hobson and Robert McCarley presented their own theory in 1977: the Activation-Synthesis model. According to this model, dreams are the product of the brain interpreting internally generated signals during REM sleep. During this phase of sleep, the limbic system structures (particularly the amygdala and hippocampus) activate. At the same time however, the regions in the brain responsible for registering external stimuli are deactivated. Since there is no new information coming into the brain from the external environment, the activated regions then process signals generated at the base of the brain and synthesize the dream story. Therefore, the dream theory is an amalgamation of different memories, emotions and sensations that are analyzed and consolidated by the