Researchers from The Picower Institute for Learning and Memory at the Massachusetts Institute of Technology published an article in 2020 that addresses information flow through the brain. The title is “Preservation and Changes in Oscillatory Dynamics across the Cortical Hierarchy.” and the authors are Mikael Lundqvist, Andre M. Bastos and Earl K. Miller. An excellent review of the article appeared in Science Daily on September 8, 2020 to which I now refer. To produce … thoughts and actions, [the] brain processes information in a hierarchy of regions along its surface, or cortex. … many studies have looked at how synchronized the phases of a particular frequency are between cortical regions. … [The authors found] a systematic shift in preferred frequencies across regions. [In their animal studies three regions were studied, the visual cortex, the parietal cortex and the prefrontal cortex, and the animals were given the task of correctly identifying an image they had just seen. The authors tracked the waves produced by this activity in the three regions.] In each region they found that when an image was either being encoded (when it was first presented) or recalled (when working memory was tested), the power of theta and gamma frequency bands of brain waves would increase in bursts and power in alpha and beta bands would decrease. When the information had to be held in mind, … theta and gamma power went down and alpha and beta power went up in bursts. … the bursts of theta and gamma power were closely associated with neural spikes that encoded information about the images. Alpha and beta power bursts … were anti-correlated with that same spiking activity. … As you move from the back of the brain to the front, all the frequencies get a little higher. … the inverse relationships between frequency bands … are consistent with a model in which alpha and beta alternatively inhibit, or release, gamma to control the encoding of information - a form of top-down control of sensory activity. … The increased frequency in the oscillatory rhythms may help sculpt information flow in the cortex.”
I cite this article because it shows how brain waves in different frequencies work in synchrony to provide the flow of information through different regions of the brain. As I stated in “Waves in Our Brains,” Part Two, energy in wave forms is transmitted through the brain’s synaptic networks linguistically encoded to convey semantic information, and this article elaborates on that point. My objective is to identify work that supports dualist interaction between the immaterial mind and the material neural networks of the brain involving wave forms generated by the intention or attention of the immaterial mind.