I'm aware of information being non-physical as in content and meaning, but could it also be physical as what is stored in our brains and how it is affected by outside stimuli, like additional information and any trauma presented to the brain?
Our brain is not physical, since we are not physical, but virtual bodies in VR PMR. Our brain doesn't exist, not being rendered, unless a measurement of its activity has been taken, or a brain surgery has been performed. Brain doesn't process information. Our consciousness does process all information, since we are not physical bodies in a first place, but we are consciousness, which does belong, or one could say, a part of Consciousness.
For learning purposes our consciousness comes to this VR, and according to the rule set of this VR PMR, consciousness has to have a physical body. A physical body and its brain is a necessary constrain, for consciousness to operate here. Information is not physical, and it doesn't have to be physical for us to be aware of it, since information is consciousness too. Our consciousness is not physical, and information is not physical, because the big Consciousness is not physical.
If a brain area affected by stroke or any other damage becomes dysfunctional, it creates an extra constrain, which limits or narrows a stream of information into VR PMR. Consciousness is not affected by this damage. Think about a radio signal. Assuming, that a radio station is located on a continent, far from its listeners, and its listeners live on an island. A radio station sends its radio signal, which has it's certain strength. On a good day listeners are able to hear this signal well, but in a case of herrocain most likely, that this signal would be disrupted, or most listeners will not be able to hear it at all. Since this station is located far from a disaster area, it's signal is not affected, but listeners have problem with reception on their side.
Clearness of a signal, which one receives, depends on one's inner ability to pay attention to this signal. It is possible to be equally attentive to outside and inside information, but it takes time and training to master this quality. Otherwise a stream of outside information takes over us, because this is an easy way to be.
I am not sure, if I was able to say it clear enough. I know, that Ted will do it better. :))