NeuroQuantology | June 2012 | Volume 10 |Issue2|PageTravis, F., Core and matrix thalamic nuclei and wakefulnessArticle+Core and Matrix Thalamic Nuclei: Parallel Circuits Involved in Content ofExperience and General WakefulnessFrederick TravisABSTRACTDuring development, the brain creates multilevel feedback loops critical for the generation and maintenance of consciousness.The thalamus has a central role in these circuits. Thalamiccorenuclei are part of sensory circuits that give rise to contents ofexperience; diffuse thalamicmatrixnuclei are part of arousal circuits that modulate levels of wakefulness. Whilecoreandmatrixcircuits could be considered part of a single brain system underlying conscious experience, they can also be seen asdiscrete, parallel circuits responsible for content and consciousness, respectively. Reverberations in thalamocortical corecircuits, driven by tasks and conditions, encode content. Reverberations in matrix circuits, driven by circadian rhythms and the“value” of experience, encode fluctuations in arousal levels. This paper considers contributions of quantum events at cellularlevels to activation in thalamic matrix circuits. Considering both quantum and classical brain processing gives insight into therelation of brain functioning and consciousness.Key Words:Quantum effects; thalamic loops; consciousness; matrix cellsNeuroQuantology 2012; 2:-Introduction1We live in a 3-dimensional world measured ininches and seconds. Objects follow predictablelaws. If you drop a pen,it will land on thefloor. If you pour water into a glass,it will fillthe glass and stay in the glass. In contrast, the atoms of our brain livein a world that is 10 million times smaller thanordinary experience, and objects in that worldfollow different rules. Electrons are notparticles; rather, they are both a particle and awave, depending on how they are measured.Or it may be more accurate to say that they areneither a particle nor a wave. They are thequantum superpositionof both realities untilwe make a measurement and collapse the wave1Corresponding author: Frederick Travis, PhDAddress: Director, Center for Brain, Consciousness and Cognition, Maharishi University of Management, Fairfield, IA 52557Phone: + 641 472 1209Fax: 641 470 1316*[email protected]ReceivedApril 12, 2012. RevisedApril 18, 2012. AcceptedMarch 20, 2012.eISSN 1303-5150function to a wave or particle (Eisberg andResnick, 1985). The brain can be understood as aclassical structure that encodes the world inaction potentials within neural circuitscomprising millions of neurons. The brain canalso be understood in terms of quantum eventsa t t h e n e u r o n a l l e v e l ,i.e.,quantumsuperposition, quantum uncertainty, andquantum tunneling. These quantum events co-exist with classical brain processes. By lookingat both together—superposition of bothquantum and classical events —we may gaininsight into the relation of brain functioningand consciousness.