Follow the evidence.

Twin Studies & Genetics

1. Bouchard, T. J., Lykken, D. T., McGue, M., Segal, N. L., & Tellegen, A. (1990). Sources of human psychological differences: The Minnesota Study of Twins Reared Apart. Science, 250(4978), 223–228.
2. Segal, N. L. (2012). Born Together — Reared Apart: The Landmark Minnesota Twin Study. Harvard University Press.
3. Plomin, R. (2018). Blueprint: How DNA Makes Us Who We Are. MIT Press.

Neuroscience of Decision-Making

1. Libet, B., Gleason, C. A., Wright, E. W., & Pearl, D. K. (1983). Time of conscious intention to act in relation to onset of cerebral activity (readiness-potential). Brain, 106(3), 623–642.
2. Soon, C. S., Brass, M., Heinze, H.-J., & Haynes, J.-D. (2008). Unconscious determinants of free decisions in the human brain. Nature Neuroscience, 11(5), 543–545.
3. Fried, I., Mukamel, R., & Kreiman, G. (2011). Internally generated preactivation of single neurons in human medial frontal cortex predicts volition. Neuron, 69(3), 548–562.
4. Schurger, A., Sitt, J. D., & Dehaene, S. (2012). An accumulator model for spontaneous neural activity prior to self-initiated movement. PNAS, 109(42), E2904–E2913.
5. Brass, M., & Haggard, P. (2007). To do or not to do: The neural signature of self-control. Journal of Neuroscience, 27(34), 9141–9145.

Consciousness Theories

1. Chalmers, D. J. (1995). Facing up to the problem of consciousness. Journal of Consciousness Studies, 2(3), 200–219.
2. Tononi, G. (2004). An information integration theory of consciousness. BMC Neuroscience, 5(42).
3. Tononi, G., Boly, M., Massimini, M., & Koch, C. (2016). Integrated information theory: from consciousness to its physical substrate. Nature Reviews Neuroscience, 17, 450–461.
4. Baars, B. J. (1988). A Cognitive Theory of Consciousness. Cambridge University Press.
5. Dehaene, S., & Changeux, J.-P. (2011). Experimental and theoretical approaches to conscious processing. Neuron, 70(2), 200–227.
6. Rosenthal, D. M. (2005). Consciousness and Mind. Oxford University Press.

Altered States

1. Carhart-Harris, R. L., et al. (2012). Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin. PNAS, 109(6), 2138–2143.
2. Palhano-Fontes, F., et al. (2015). The psychedelic state induced by ayahuasca modulates the activity and connectivity of the default mode network. PLoS ONE, 10(2), e0118143.
3. Brewer, J. A., et al. (2011). Meditation experience is associated with differences in default mode network activity and connectivity. PNAS, 108(50), 20254–20259.
4. Mashour, G. A., & Hudetz, A. G. (2018). Neural correlates of unconsciousness in large-scale brain networks. Trends in Neurosciences, 41(3), 150–160.

Entropy, Synchronicity & Cosmology

1. Deco, G., et al. (2022). Revisiting the global workspace orchestrating the hierarchical organization of the human brain. Nature Human Behaviour, 5, 497–511.
2. Jung, C. G., & Pauli, W. (1952). The Interpretation of Nature and the Psyche. Pantheon Books.
3. Friston, K. (2010). The free-energy principle: A unified brain theory? Nature Reviews Neuroscience, 11(2), 127–138.
4. Goff, P. (2019). Galileo's Error: Foundations for a New Science of Consciousness. Pantheon.
5. Landauer, R. (1961). Irreversibility and heat generation in the computing process. IBM Journal of Research and Development, 5(3), 183–191.
6. Kim, Y.-H., Yu, R., Kulik, S. P., Shih, Y., & Scully, M. O. (2000). Delayed "choice" quantum eraser. Physical Review Letters, 84(1), 1–5.
7. Wheeler, J. A. (1978). The "past" and the "delayed-choice" double-slit experiment. In Mathematical Foundations of Quantum Theory. Academic Press.
8. Scully, M. O., & Drühl, K. (1982). Quantum eraser: A proposed photon correlation experiment. Physical Review A, 25(4), 2208–2213.
9. Aharonov, Y., Bergmann, P. G., & Lebowitz, J. L. (1964). Time symmetry in the quantum process of measurement. Physical Review, 134(6B), B1410–B1416.
10. Aharonov, Y., Albert, D. Z., & Vaidman, L. (1988). How the result of a measurement of a component of the spin of a spin-1/2 particle can turn out to be 100. Physical Review Letters, 60(14), 1351–1354.
11. Robertson, M. (1898). Futility, or the Wreck of the Titan. M. F. Mansfield.

Split-Brain & Divided Consciousness

1. Sperry, R. W. (1968). Hemisphere deconnection and unity in conscious awareness. American Psychologist, 23(10), 723–733.
2. Gazzaniga, M. S. (2005). Forty-five years of split-brain research and still going strong. Nature Reviews Neuroscience, 6(8), 653–659.

Boundaries & NDEs

1. Low, P., et al. (2012). The Cambridge Declaration on Consciousness. Francis Crick Memorial Conference.
2. Parnia, S., et al. (2014). AWARE—AWAreness during REsuscitation. Resuscitation, 85(12), 1799–1805.
3. Mashour, G. A., et al. (2019). Paradoxical lucidity: A potential paradigm shift for the neurobiology and treatment of severe dementias. Alzheimer's & Dementia, 15(8), 1107–1114.

Selective Attention, Simulation & Digital Physics

1. Simons, D. J., & Chabris, C. F. (1999). Gorillas in our midst: Sustained inattentional blindness for dynamic events. Perception, 28(9), 1059–1074.
2. Bostrom, N. (2003). Are we living in a computer simulation? The Philosophical Quarterly, 53(211), 243–255.
3. Zuse, K. (1969). Rechnender Raum (Calculating Space). MIT Technical Translation.
4. Fredkin, E. (1992). Finite Nature. Proceedings of the XXVIIth Rencontre de Moriond.
5. Lloyd, S. (2002). Computational capacity of the universe. Physical Review Letters, 88(23), 237901.
6. Tegmark, M. (2014). Our Mathematical Universe. Knopf.

Orch-OR & Quantum Consciousness

1. Penrose, R., & Hameroff, S. (1996). Orchestrated reduction of quantum coherence in brain microtubules: A model for consciousness. Mathematics and Computers in Simulation, 40(3–4), 453–480.
2. Hameroff, S., & Penrose, R. (2014). Consciousness in the universe: A review of the ‘Orch OR’ theory. Physics of Life Reviews, 11(1), 39–78.

Geometric Unity & the Observer Problem

1. Weinstein, E. (2021). Geometric Unity: Author's Working Draft, v1.0. Self-published.
2. Nguyen, T., & Polya, T. (2021). A Response to Geometric Unity. Self-published technical critique.
3. Zurek, W. H. (2003). Decoherence, einselection, and the quantum origins of the classical. Reviews of Modern Physics, 75(3), 715–775.
4. Mermin, N. D. (1989). What's wrong with this pillow? Physics Today, 42(4), 9–11.
5. Chalmers, D. J. (2015). Panpsychism and panprotopsychism. In T. Alter & Y. Nagasawa (Eds.), Consciousness in the Physical World. Oxford University Press.
6. Hoffman, D. D., & Prakash, C. (2014). Objects of consciousness. Frontiers in Psychology, 5, 577.
7. Hoffman, D. D. (2019). The Case Against Reality. W. W. Norton.

Machine Consciousness

1. Searle, J. R. (1980). Minds, brains, and programs. Behavioral and Brain Sciences, 3(3), 417–424.
2. Chalmers, D. J. (2010). The singularity: A philosophical analysis. Journal of Consciousness Studies, 17(9–10), 7–65.
3. Butlin, P., et al. (2023). Consciousness in Artificial Intelligence: Insights from the Science of Consciousness. arXiv:2308.08708.

1. Stanford Encyclopedia of Philosophy: Consciousness
2. Internet Encyclopedia of Philosophy: Hard Problem
3. IEP: Integrated Information Theory
4. SEP: Compatibilism
5. Wikipedia: Neuroscience of Free Will
6. David Chalmers' Papers Online