1 Neuroscience of the Yogic Theory of 2 Mind and Consciousness 3 Vaibhav Tripathi1* and Pallavi Bharadwaj2 *For correspondence:
[email protected] (VT) 4 1Boston University; 2Massachusetts Institute of Technology † Present address: Department of 5 Psychological and Brain Sciences, Boston University, Boston, MA, ‡ USA 02215; Laboratory for 6 Abstract Yoga as a practice and philosophy of life has been followed for more than 4500 years Information and Decision Systems, 7 Massachusetts Institute of with known evidence of Yogic practices in the Indus Valley Civilization. A plethora of scholars have Technology, Cambridge, MA 02139 8 contributed to the development of the field, but in last century the profound knowledge 9 remained inaccessible and incomprehensible to the general public. Last few decades have seen a 10 resurgence in the utility of Yoga and Meditation as a practice with growing scientific evidence 11 behind it. Significant scientific literature has been published, illustrating the benefits of Yogic 12 practices including asana, pranayama and dhyana on mental and physical well being. 13 Electrophysiological and recent functional Magnetic Resonance Imaging (fMRI) studies have 14 found explicit neural signatures for Yogic practices. In this article, we present a review of the 15 philosophy of Yoga, based on the dualistic Sankhya school, as applied to consciousness 16 summarized by Patanjali in his Yoga Sutras followed by discussion on the five vritti (modulations 17 of mind), practice of pratyahara, dharana, dhyana, different states of samadhi, and samapatti. We 18 introduce Yogic Theory of Mind and Consciousness (YTMC), a cohesive theory that can model 19 both external modulations and internal states of the mind.