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currentsinbiology:

Lucid dreams and metacognition: Awareness of thinking — awareness of dreaming

Neuroscientists from the Max Planck Institute for Human Development and the Max Planck Institute of Psychiatry have compared brain structures of frequent lucid dreamers and participants who never or only rarely have lucid dreams. Accordingly, the anterior prefrontal cortex, i.e., the brain area controlling conscious cognitive processes and playing an important role in the capability of self-reflection, is larger in lucid dreamers.

The differences in volumes in the anterior prefrontal cortex between lucid dreamers and non-lucid dreamers suggest that lucid dreaming and metacognition are indeed closely connected. This theory is supported by brain images taken when test persons were solving metacognitive tests while being awake. Those images show that the brain activity in the prefrontal cortex was higher in lucid dreamers. “Our results indicate that self-reflection in everyday life is more pronounced in persons who can easily control their dreams,” states Elisa Filevich, post-doc in the Center for Lifespan Psychology at the Max Planck Institute for Human Development.

The researchers further want to know whether metacognitive skills can be trained. In a follow-up study, they intend to train volunteers in lucid dreaming to examine whether this improves the capability of self-reflection.

Caption:In lucid dreamers, the prefrontal cortex enabling self-reflection is bigger in comparision to other people. Credit: MPI for Human Development