⬅️ look at this ion channel

            Unwin, N. (2013). Nicotinic acetylcholine receptor and the structural basis of neuromuscular transmission: insights from Torpedo postsynaptic membranes. Quarterly Reviews of Biophysics, 46(4), 283–322. https://doi.org/10.1017/s0033583513000061

            Taylor, P. (1999). Muscarinic receptors. Basic Neurochemistry - NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK28014/

            Huang, Q., Liao, C., Ge, F., Ao, J., & Liu, T. (2022). Acetylcholine bidirectionally regulates learning and memory. Journal of Neurorestoratology, 10(2), 100002. https://doi.org/10.1016/j.jnrt.2022.100002

            Power, A. E. (2004). Slow-wave sleep, acetylcholine, and memory consolidation. Proceedings of the National Academy of Sciences of the United States of America, 101(7), 1795–1796. https://doi.org/10.1073/pnas.0400237101

            ⬅️cell groups in the basal forebrain, and how they interact

            Xu, M., Chung, S., Zhang, S., Zhong, P., Ma, C., Chang, W., Weissbourd, B., Sakai, N., Luo, L., Nishino, S., & Dan, Y. (2015). Basal forebrain circuit for sleep-wake control. Nature Neuroscience, 18(11), 1641–1647. https://doi.org/10.1038/nn.4143

           Peng, W., Z, W., Song, K., Zhang, S., Li, Y., & Xu, M. (2020). Regulation of sleep homeostasis mediator adenosine by basal forebrain glutamatergic neurons. Science, 369(6508). https://doi.org/10.1126/science.abb0556

           Tindle, J. (2022, October 31). Neuroanatomy, parasympathetic nervous system. StatPearls - NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK553141/#:~:text=The%20parasympathetic%20nervous%20system%20predominates,digestion%20and%20urination.%5B1%5D

            ⬅️ the hippocampus is heavily involved in memory formation

            Khandelwal, P. (2022, May 20). Declarative Memory and Procedural Memory | Explicit & Implicit. The Human Memory. https://human-memory.net/explicit-implicit-memory/

            Durán, E., Pandinelli, M., Logothetis, N. K., & Eschenko, O. (2023). Altered norepinephrine transmission after spatial learning impairs sleep-mediated memory consolidation in rats. Scientific Reports, 13(1). https://doi.org/10.1038/s41598-023-31308-1

           Memory consolidation during REM sleep. (2020, June 20). ScienceDaily. https://www.sciencedaily.com/releases/2020/06/200605105359.htm