When two or more ideas are in conflict within your brain, you are experiencing cognitive dissonance.
Embodied Cognition is the concept that the mind not only influences the body but that the body influences the mind. The idea dates back to early 20th century.
Lucid dreaming is a dream in which the dreamer is consciously aware that he or she is dreaming. Lucid dreams can be dream-initiated or wake-initiated.
Prosopagnosia is a disorder in which a person cannot recognize faces. A person with this disorder will often have to resort to recognizing a person by voice.