The true nature of self has been considered one of the greatest mysteries since philosophical thought first arose. We assert that states of mind relating to the self are greatly influenced if not underlain by the autonomic nervous system. A duality of the self is an ancient concept that has been described by philosophers around the globe, but has not been explained scientifically. We propose a duality to the self which can be associated physiologically with the duality of the autonomic nervous system. In the sympathetic dominant state we often perceive our relationship to people and the environment in an emotional manner, with the parasympathetic dominant state more associated with more cognitive states of mind. We illustrate that our thought processes and moods are heavily influenced by a relationship and levels of dominance between our embodied, egotistical emotional self and a cognitive self that has more blurred boundaries between “self and other”. The model of a dual self we propose elucidates more reasonable understanding of self-talk and self-perception. Preeminent and founding fathers of psychology such as William James and Sigmund Freud have proposed a multi-part self, however lacked empirical work to support their hypotheses. We have however reviewed significant scientific works to support our concept of self. We suggest that through understanding this dual nature and the nature of the self in general, one may exert more control over moods and thought patterns, therefore improving mental health as mental atmosphere.
Andrews-Hanna, J. R., Smallwood, J., & Spreng, R. N. (2014). The Default Network and Self-Generated Thought: Component Processes, Dynamic Control, and Clinical Relevance. Annals of the New York Academy of Sciences, 1316, 29-52. https://doi.org/10.1111/nyas.12360
Au-Ma, K., Au-Lippelt, D. P., & Au-Hommel, B. (2017). Creating Virtual-Hand and Virtual-Face Illusions to Investigate Self-Representation. Journal of Visualized Experiments, 121, e54784. https://doi.org/10.3791/54784
Barton, D. A., Dawood, T., Lambert, E. A., Esler, M. D., Haikerwal, D., Brenchley, C., Socratous, F., Kaye, D. M., Schlaich, M. P., Hickie, I., & Lambert, G. W. (2007). Sympathetic Activity in Major Depressive Disorder: Identifying Those at Increased Cardiac Risk? Journal of Hypertension, 25, 2117-2124. https://doi.org/10.1097/HJH.0b013e32829baae7
Baumeister, R., & Bushman, B. (2010). The Self. In Social Psychology and Human Nature (pp. 57-96). Belmont, CA: Wadsworth Publishing.
Berkovich-Ohana, A., & Glicksohn, J. (2014). The Consciousness State Space (CSS)—A Unifying Model for Consciousness and Self. Frontiers in Psychology, 5, 341. https://doi.org/10.3389/fpsyg.2014.00341
Billman, G. (2013). The LF/HF Ratio Does Not Accurately Measure Cardiac Sympathovagal Balance. Frontiers in Physiology, 4, 26. https://doi.org/10.3389/fphys.2013.00026
Blavatsky, H. P. (1889). The Key to Theosophy. Scotts Valley, CA: CreateSpace.
Botvinick, M., & Cohen, J. (1998). Rubber Hands “Feel” Touch That Eyes See. Nature, 391, 756. https://doi.org/10.1038/35784
Brewer, J. A., Worhunsky, P. D., Gray, J. R., Tang, Y. Y., Weber, J., & Kober, H. (2011). Meditation Experience Is Associated with Differences in Default Mode Network Activity and Connectivity. Proceedings of the National Academy of Sciences of the United States of America, 108, 20254-20259. https://doi.org/10.1073/pnas.1112029108
Brodal, P. (2004). The Central Nervous System: Structure and Function. Oxford: Oxford University Press.
Converse, R. L., Jacobsen, T. N., Toto, R. D., Jost, C. M. T., Cosentino, F., Fouad-Tarazi, F., & Victor, R. G. (1992). Sympathetic Overactivity in Patients with Chronic Renal Failure. New England Journal of Medicine, 327, 1912-1918. https://doi.org/10.1056/NEJM199212313272704
Curtis, B. M., & O’keefe Jr., J. H. (2002). Autonomic Tone as a Cardiovascular Risk Factor: The Dangers of Chronic Fight or Flight. Mayo Clinic Proceedings, 77, 45-54. https://doi.org/10.4065/77.1.45
De Waal, F. B. M. (2007). Putting the Altruism Back into Altruism: The Evolution of Empathy. Annual Review of Psychology, 59, 279-300. https://doi.org/10.1146/annurev.psych.59.103006.093625
Demiralp, T., Bayraktaroglu, Z., Lenz, D., Junge, S., Busch, N. A., & Herrmann, C. S. (2006). The Interaction of Theta and Gamma Oscillations in Human Cognition. International Journal of Psychophysiology, 61, 309.
Denton, D. (2006). The Primordial Emotions: The Dawning of Consciousness. Oxford: Oxford University Press. https://doi.org/10.1093/acprof:oso/9780199203147.001.0001
Dequattro, V., & Hamad, R. (1985). The Role of Stress and the Sympathetic Nervous System in Hypertension and Ischemic Heart Disease: Advantages of Therapy with Beta-Receptor Blockers. Clinical and Experimental Hypertension, 7, 907-932. https://doi.org/10.3109/10641968509077238
Donaldson, C., Lam, D., & Mathews, A. (2007). Rumination and Attention in Major Depression. Behaviour Research and Therapy, 45, 2664-2678. https://doi.org/10.1016/j.brat.2007.07.002
Dor-Ziderman, Y., Berkovich-Ohana, A., Glicksohn, J., & Goldstein, A. (2013). Mindfulness-Induced Selflessness: A MEG Neurophenomenological Study. Frontiers in Human Neuroscience, 7, 582. https://doi.org/10.3389/fnhum.2013.00582
Eagleman, D. (2011). Incognito: The Secret Lives of the Brain. New York: Pantheon.
Edelman, G. M. (2003). Naturalizing Consciousness: A Theoretical Framework. Proceedings of the National Academy of Sciences, 100, 5520-5524. https://doi.org/10.1073/pnas.0931349100
Edelman, G. M., Gally, J. A., & Baars, B. J. (2011). Biology of Consciousness. Frontiers in Psychology, 2, 4. https://doi.org/10.3389/fpsyg.2011.00004
Eisenberger, N. I., Lieberman, M. D., & Satpute, A. B. (2005). Personality from a Controlled Processing Perspective: An fMRI Study of Neuroticism, Extraversion, and Self-Consciousness. Cognitive, Affective, & Behavioral Neuroscience, 5, 169-181. https://doi.org/10.3758/CABN.5.2.169
Farb, N. A. S., Segal, Z. V., Mayberg, H., Bean, J., Mckeon, D., Fatima, Z., & Anderson, A. K. (2007). Attending to the Present: Mindfulness Meditation Reveals Distinct Neural Modes of Self-Reference. Social Cognitive and Affective Neuroscience, 2, 313-322. https://doi.org/10.1093/scan/nsm030
Fernyhough, C., & Fradley, E. (2005). Private Speech on an Executive Task: Relations with Task Difficulty and Task Performance. Cognitive Development, 20, 103-120. https://doi.org/10.1016/j.cogdev.2004.11.002
Fingelkurts, A. A., Fingelkurts, A. A., & Kallio-Tamminen (2016). Long-Term Meditation Training Induced Changes in the Operational Synchrony of Default Mode Network Modules during a Resting State. Cognitive Processing, 17, 27-37. https://doi.org/10.1007/s10339-015-0743-4
Fingelkurts, A. A., Fingelkurts, A. A., & Neves, C. F. H. (2010). Natural World Physical, Brain Operational, and Mind Phenomenal Space-Time. Physics of Life Reviews, 7, 195-249. https://doi.org/10.1016/j.plrev.2010.04.001
Fingelkurts, A. A., Fingelkurts, A. A., Bagnato, S., Boccagni, C., & Galardi, G. (2011). Life or Death: Prognostic Value of a Resting EEG with Regards to Survival in Patients in Vegetative and Minimally Conscious States. PLoS ONE, 6, e25967. https://doi.org/10.1371/journal.pone.0025967
Fisher, J. P., Young, C. N., & Fadel, P. J. (2009). Central Sympathetic Overactivity: Maladies and Mechanisms. Autonomic Neuroscience: Basic & Clinical, 148, 5-15. https://doi.org/10.1016/j.autneu.2009.02.003
Geurts, B. (2018). Making Sense of Self Talk. Review of Philosophy and Psychology, 9, 271-285. https://doi.org/10.1007/s13164-017-0375-y
Grassi, G., Seravalle, G., Quarti-Trevano, F., Scopelliti, F., Dell’oro, R., Bolla, G., & Mancia, G. (2007). Excessive Sympathetic Activation in Heart Failure with Obesity and Metabolic Syndrome. Hypertension, 49, 535-541. https://doi.org/10.1161/01.HYP.0000255983.32896.b9
Greenwood, J. P., Scott, E. M., Walker, J. J., Stoker, J. B., & Mary, D. A. S. G. (2003). The Magnitude of Sympathetic Hyperactivity in Pregnancy-Induced Hypertension and Preeclampsia. American Journal of Hypertension, 16, 194-199. https://doi.org/10.1016/S0895-7061(02)03256-9
Hardy, J. (2006). Speaking Clearly: A Critical Review of the Self-Talk Literature. Psychology of Sport and Exercise, 7, 81-97. https://doi.org/10.1016/j.psychsport.2005.04.002
Hatzigeorgiadis, A., & Galanis, E. (2017). Self-Talk Effectiveness and Attention. Current Opinion in Psychology, 16, 138-142. https://doi.org/10.1016/j.copsyc.2017.05.014
Heatherton, T. F. (2010). Neuroscience of Self and Self-Regulation. Annual Review of Psychology, 62, 363-390. https://doi.org/10.1146/annurev.psych.121208.131616
Heavey, C. L., & Hurlburt, R. T. (2008). The Phenomena of Inner Experience. Consciousness and Cognition, 17, 798-810. https://doi.org/10.1016/j.concog.2007.12.006
Hinterberger, T., Kamei, T., & Walach, H. (2011). Psychophysiological Classification and Staging of Mental States during Meditative Practice. Biomedical Engineering, 56, 341-350. https://doi.org/10.1515/BMT.2011.021
Holcombe, A. D., & Holcombe, S. (2005). Biblically-Derived Concept of Mankind’s Higher-Self-Lower Self Nature. Journal of Religion & Psychical Research, 28, 20-25.
Hommel, B. (2009). Action Control According to TEC (Theory of Event Coding). Psychological Research PRPF, 73, 512-526. https://doi.org/10.1007/s00426-009-0234-2
Huggett Robert, J., Scott Eleanor, M., Gilbey Stephen, G., Stoker John, B., Mackintosh Alan, F., & Mary David, A. S. G. (2003). Impact of Type 2 Diabetes Mellitus on Sympathetic Neural Mechanisms in Hypertension. Circulation, 108, 3097-3101. https://doi.org/10.1161/01.CIR.0000103123.66264.FE
Ionta, S., Gassert, R., & Blanke, O. (2011). Multi-Sensory and Sensorimotor Foundation of Bodily Self-Consciousness—An Interdisciplinary Approach. Frontiers in Psychology, 2, 383. https://doi.org/10.3389/fpsyg.2011.00383
James, W. (1890). Principles of Psychology. New York: Henry-Holt and Co. https://doi.org/10.1037/10538-000
Jensvold, M. L. (2014). Experimental Conversations: Sign Language Studies with Chimpanzees. In The Evolution of Social Communication in Primates: A Multidisciplinary Approach (pp. 63-82). Gontier: Springer. https://doi.org/10.1007/978-3-319-02669-5_4
Jerath, R. (2010). Pranayama: Converting Stress & Anxiety into Inner Joy. Bloomington, IN: AuthorHouse.
Jerath, R., & Beveridge, C. (2019). Multimodal Integration and Phenomenal Spatiotemporal Binding: A Perspective from the Default Space Theory. Frontiers in Integrative Neuroscience, 13, 2. https://doi.org/10.3389/fnint.2019.00002
Jerath, R., Cearley, S. M., Barnes, V. A., & Jensen, M. (2016). Meditation Experiences, Self, and Boundaries of Consciousness. International Journal of Complementary & Alternative Medicine, 4, Article ID: 00105. https://doi.org/10.15406/ijcam.2016.04.00105
Jerath, R., Crawford, M. W., & Barnes, V. A. (2015). A Unified 3D Default Space Consciousness Model Combining Neurological and Physiological Processes That Underlie Conscious Experience. Frontiers in Psychology, 6, Article 1204. https://doi.org/10.3389/fpsyg.2015.01204
Jerath, R., Edry, J. W., Barnes, V. A., & Jerath, V. (2006). Physiology of Long Pranayamic Breathing: Neural Respiratory Elements May Provide a Mechanism That Explains How Slow Deep Breathing Shifts the Autonomic Nervous System. Medical Hypotheses, 67, 566-571. https://doi.org/10.1016/j.mehy.2006.02.042
Jowett, B. (1871). Dialogues of Plato, Translated into English with Analyses and Introduction. Cambridge: Cambridge University Press.
Kales, A., Caldwell, A. B., Preston, T. A., Healey, S., & Kales, J. D. (1976). Personality Patterns in Insomnia: Theoretical Implications. JAMA Psychiatry, 33, 1128-1134. https://doi.org/10.1001/archpsyc.1976.01770090118013
Kammers, M. P., De Vignemont, F., Verhagen, L., & Dijkerman, H. C. (2009). The Rubber Hand Illusion in Action. Neuropsychologia, 47, 204-211. https://doi.org/10.1016/j.neuropsychologia.2008.07.028
Kreibig, S. D. (2010). Autonomic Nervous System Activity in Emotion: A Review. Biological Psychology, 84, 394-421. https://doi.org/10.1016/j.biopsycho.2010.03.010
Leary, M. R. (2004). The Curse of the Self: Self-Awareness, Egotism, and the Quality of Human Life. New York: Oxford Univ. Press. https://doi.org/10.1093/acprof:oso/9780195172423.001.0001
Levenson, R. W. (2014). The Autonomic Nervous System and Emotion. Emotion Review, 6, 100-112. https://doi.org/10.1177/1754073913512003
Macrae, C. N., Moran, J. M., Heatherton, T. F., Banfield, J. F., & Kelley, W. M. (2004). Medial Prefrontal Activity Predicts Memory for Self. Cerebral Cortex, 14, 647-654. https://doi.org/10.1093/cercor/bhh025
Malpas, S. C. (2010). Sympathetic Nervous System Overactivity and Its Role in the Development of Cardiovascular Disease. Physiological Reviews, 90, 513-557. https://doi.org/10.1152/physrev.00007.2009
Mazurak, N., Seredyuk, N., Sauer, H., Teufel, M., & Enck, P. (2012). Heart Rate Variability in the Irritable Bowel Syndrome: A Review of the Literature. Neurogastroenterology & Motility, 24, 206-216. https://doi.org/10.1111/j.1365-2982.2011.01866.x
Meares, R. (2012). The Sense of the Spirit as a Form of Conversation. Asian Journal of Psychiatry, 5, 190-192. https://doi.org/10.1016/j.ajp.2012.05.002
Moran, J. M., Kelley, W. M., & Heatherton, T. F. (2013). Self-Knowledge. In K. N. Ochsner, & S. Kosslyn (Eds.), Oxford Handbook of Cognitive Neuroscience (pp. 135-147). New York: Oxford Univ. Press.
Moran, J. M., Macrae, C. N., Heatherton, T. F., Wyland, C. L., & Kelley, W. M. (2006). Neuroanatomical Evidence for Distinct Cognitive and Affective Components of Self. Journal of Cognitive Neuroscience, 18, 1586-1594. https://doi.org/10.1162/jocn.2006.18.9.1586
Moser, J. S., Dougherty, A., Mattson, W. I., Katz, B., Moran, T. P., Guevarra, D., Shablack, H., Ayduk, O., Jonides, J., Berman, M. G., & Kross, E. (2017). Third-Person Self-Talk Facilitates Emotion Regulation without Engaging Cognitive Control: Converging Evidence from ERP and fMRI. Scientific Reports, 7, Article No. 4519. https://doi.org/10.1038/s41598-017-04047-3
Musholt, K. (2013). A Philosophical Perspective on the Relation between Cortical Midline Structures and the Self. Frontiers in Human Neuroscience, 7, 536. https://doi.org/10.3389/fnhum.2013.00536
Nash, J. D., Newberg, A., & Awasthi, B. (2013). Toward a Unifying Taxonomy and Definition for Meditation. Frontiers in Psychology, 4, 806. https://doi.org/10.3389/fpsyg.2013.00806
Nataraja, S. (2008). The Blissful Brain: Neuroscience and Proof of the Power of Meditation. London, United Kingdom: Gaia Books.
Nelson, D. L., & Simmons, B. L. (2004). Eustress: An Elusive Construct an Engaging Pursuit. Oxford: Elsevier Jai.
Nesse, R. M., Bhatnagar, S., & Ellis, B. J. (2016). Evolutionary Origins and Functions of the Stress Response System. In Stress: Concepts, Cognition, Emotion, and Behavior (pp. 95-101). Cambridge, MA: Academic Press. https://doi.org/10.1016/B978-0-12-800951-2.00011-X
Newberg, A. B., & D’aquili, E. G. (1999). Mystical Mind. Minneapolis, MN: Fortress Press.
Newberg, A., Alavi, A., Baime, M., Pourdehnad, M., Santanna, J., & D’aquili, E. (2001). The Measurement of Regional Cerebral Blood Flow during the Complex Cognitive Task of Meditation: A Preliminary SPECT Study. Psychiatry Research, 106, 113-122. https://doi.org/10.1016/S0925-4927(01)00074-9
Oizumi, M., Albantakis, L., & Tononi, G. (2014). From the Phenomenology to the Mechanisms of Consciousness: Integrated Information Theory 3.0. PLOS Computational Biology, 10, e1003588. https://doi.org/10.1371/journal.pcbi.1003588
Orme-Johnson, D. W., & Barnes, V. A. (2014). Effects of the Transcendental Meditation Technique on Trait Anxiety: A Meta-Analysis of Randomized Controlled Trials. Journal of Alternative and Complementary Medicine, 20, 330-341. https://doi.org/10.1089/acm.2013.0204
Praet, D. V. (2012). Unconscious Branding: How Neuroscience Can Empower (and Inspire) Marketing. New York, NY: St. Martin’s Press.
Revonsuo, A. (2006). Inner Presence: Consciousness as a Biological Phenomenon. Cambridge, MA: MIT Press.
Sedikides, C., & Spencer, S. J. (2007). The Self (Frontiers of Social Psychology). New York: Psychology Press.
Theodorakis, Y., Chroni, S., Laparidis, K., Bebetsos, V., & Douma, I. (2001). Self-Talk in a Basketball-Shooting Task. Perceptual and Motor Skills, 92, 309-315. https://doi.org/10.2466/pms.2001.92.1.309
Travis, F., & Shear, J. (2010). Focused Attention, Open Monitoring and Automatic Self-Transcending: Categories to Organize Meditations from Vedic, Buddhist and Chinese Traditions. Consciousness and Cognition, 19, 1110-1118. https://doi.org/10.1016/j.concog.2010.01.007
Trehub, A. (2007). Space, Self, and the Theater of Consciousness. Consciousness and Cognition, 16, 310-330. https://doi.org/10.1016/j.concog.2006.06.004
Tsakiris, M., Hesse, M. D., Boy, C., Haggard, P., & Fink, G. R. (2007). Neural Signatures of Body Ownership: A Sensory Network for Bodily Self-Consciousness. Cereb Cortex, 17, 2235-2244. https://doi.org/10.1093/cercor/bhl131
Vicente, A., & Martinez Manrique, F. (2011). Inner Speech: Nature and Functions. Philosophy Compass, 6, 209-219. https://doi.org/10.1111/j.1747-9991.2010.00369.x
Von Borell, E., Langbein, J., Després, G., Hansen, S., Leterrier, C., Marchant-Forde, J., Marchant-Forde, R., Minero, M., Mohr, E., Prunier, A., Valance, D., & Veissier, I. (2007). Heart Rate Variability as a Measure of Autonomic Regulation of Cardiac Activity for Assessing Stress and Welfare in Farm Animals—A Review. Physiology & Behavior, 92, 293-316. https://doi.org/10.1016/j.physbeh.2007.01.007
Westen, D. (1999). The Scientific Status of Unconscious Processes: Is Freud Really Dead? Journal of the American Psychoanalytic Association, 47, 1061-1106. https://doi.org/10.1177/000306519904700404
Wilson, R. A., & Foglia, L. (2017). Embodied Cognition. In The Stanford Encyclopedia of Philosophy (p. 1). Stanford, CA: Metaphysics Research Lab, Stanford University.
Yamashita, M. (2013). Electric Axon Guidance in Embryonic Retina: Galvanotropism Revisited. Biochemical and Biophysical Research Communications, 431, 280-283. https://doi.org/10.1016/j.bbrc.2012.12.115