In a lecture given in 1957 at the Second International Conference for Psychiatry in Zurich, Jung wrote:
I have long thought that, if there is any analogy between psychic and physiological processes, the organizing system of the brain must lie subcortically on the brain stem. This conjecture arose out of considering the psychology of an archetype [the Self] of central importance and universal distribution represented in mandala symbols. … The reason that lead me to conjecture a localization of a physiological basis for this archetype in the brain stem was the psychological fact that besides being specifically characterized by the ordering and orienting role, its uniting properties are predominantly affective. I would conjecture that such a subcortical system might somehow reflect characteristic of the archetypal form of the unconscious.3
Throughout his career Jung developed this notion and applied it frequently in his analysis mythic and cultural symbolism as well as clinical treatments. One of his main arguments was that this ancient genetically inherited aspect of the brain was dissociated from more recently evolved regions associated with the human ego complex. For him the goal of therapy was to integrate this more ancient emotionally based subcortical brain system with the more recently evolved ego complex and its capacities for self-conscious awareness and rational insight. It was such integration that formed the basis of his theory of individuation 4
Erik D. Goodwyn, 2011. The Neurobiology of the Gods: How Brain Physiology Shapes the Recurrent Imagery of Myth and Dreams, Routledge; John Ryan Haule, 2011. Jung in the 21st Century Volume One: Evolution and Archetype, Routledge; Carhart-Harris, Robin L., et al. 2010. 'The default-mode, ego-functions and free-energy: a neurobiological account of Freudian ideas'. Brain 133(4):1265–1283.; 2014 'The entropic brain: a theory of conscious states informed by neuroimaging research with psychedelic drugs'. Frontiers in Human Neuroscience 8.; Antonio Alcaro, Stefano Carta, and Jaak Panksepp, 2017:'The Affective Core of the Self: A Neuro-Archetypical Perspective on the Foundations of Human (and Animal) Subjectivity', Front Psychol. 2017; 8: 1424; Clark, Gary, 2021. 'Carl Jung and the Psychedelic Brain: An Evolutionary Model of Analytical Psychology Informed by Psychedelic Neuroscience'. International Journal of Jungian Studies; 2022,'The Dionysian Primate: Goethe, Nietzsche, Jung and Psychedelic Neuroscience.' in Psychoanalysis and the Mind-Body Problem. Ed. Jon Mills, pp. 305-332. https://www.amazon.com/Neurobiology-Gods-Physiology-Recurrent-Imagery/dp/0415673003 ↩
Erik D. Goodwyn, 2011. The Neurobiology of the Gods: How Brain Physiology Shapes the Recurrent Imagery of Myth and Dreams;Antonio Alcaro, Stefano Carta, and Jaak Panksepp, 2017:'The Affective Core of the Self: A Neuro-Archetypical Perspective on the Foundations of Human (and Animal) Subjectivity', Front Psychol. 2017; 8: 1424; Clark, Gary, 2021. 'Carl Jung and the Psychedelic Brain: An Evolutionary Model of Analytical Psychology Informed by Psychedelic Neuroscience'. International Journal of Jungian Studies; 2022,'The Dionysian Primate: Goethe, Nietzsche, Jung and Psychedelic Neuroscience.' in Psychoanalysis and the Mind-Body Problem. Ed. Jon Mills, pp. 305-332. https://www.amazon.com/Neurobiology-Gods-Physiology-Recurrent-Imagery/dp/0415673003 ↩
Jung C. G. (ed.) (1958). “The psychogenesis of mental disease,” in The Collected Works Vol. 3 (Princeton, NJ: Princeton University Press; ) ↩
Jung, C.G. (1962). Symbols of Transformation: An Analysis of the Prelude to a Case of Schizophrenia (vol. 2). New York: Harper & Brothers; C. G. Jung, The Archetypes and the Collective Unconscious (London 1996); Clark, Gary. Integrating the Archaic and the Modern: The Red Book, Visual Cognitive Modalities and the Neuroscience of Altered States of Consciousness. In Jung's Red Book for Our Time: Searching for Soul Under Postmodern Conditions Volume 4. Ed. Murray Stein and Thomas Artz. Chiron Publications; Clark, Gary, 2021. 'Carl Jung and the Psychedelic Brain: An Evolutionary Model of Analytical Psychology Informed by Psychedelic Neuroscience'. International Journal of Jungian Studies; 2022,'The Dionysian Primate: Goethe, Nietzsche, Jung and Psychedelic Neuroscience.' in Psychoanalysis and the Mind-Body Problem. Ed. Jon Mills, pp. 305-332.; J R Haule, 1984. 'From somnambulism to the archetypes: the French roots of Jung's split with Freud.' Psychoanal Rev.;71(4):635-59.; Gord Barentsen, 2020. Romantic Metasubjectivity Through Schelling and Jung Rethinking the Romantic Subject, Routledge. pp. 79-108 https://brill.com/view/journals/ijjs/aop/article-10.1163-19409060-bja10017/article-10.1163-19409060-bja10017.xml?language=en ↩