Psychology MCAT Practice Exam

Which theory posits that dreams are a random result of brain activation?

1. James Lange theory

2. Activation-synthesis theory

3. Cannon-Bard theory

4. Schachter-Singer theory

The correct answer is: Activation-synthesis theory

The activation-synthesis theory posits that dreams result from random neural activity in the brain during sleep. This theory suggests that the brain engages in a process of synthesizing this random activation into a narrative, which we experience as dreams. According to this perspective, the brain attempts to make sense of the internal stimuli, weaving together various mental images and thoughts into a cohesive story, even though these elements may not have any real connection or meaning. This stands in contrast to other theories of dreaming that might emphasize psychological significance or emotional processing, thereby illustrating that dreams may lack intentionality and instead emerge from the brain's inherent activity during sleep. This understanding of dreams emphasizes the neurological underpinnings rather than alternative explanations focused on emotional or cognitive relevance, addressing how the brain's spontaneous firing patterns can lead to the unique and sometimes nonsensical experiences that characterize dreaming.