How is that possible? What is the link, the method of communication? If that isn't known how is it known the interaction is taking place?
Do you still have the link to the blog post?
The neuron state is impacted by: neurotransmitters, electromagnetic fields, the chemical soup that it sits in, etc.
An interesting example of how non-simple this stuff is: a new study (https://www.nature.com/articles/s42003-024-06778-2) where both the intracellular calcium level and the membrane potential were measured at the same time. The result:
The membrane potential encoded the presence of an odor
The intracellular calcium level encoded the magnitude of the odor
Chemical signals, including spillovers of neurotransmitters. I'm trying to find the post, but it was 20 years ago.
I still don't see how that indicates their brain is more advanced than we might think, though. What are the reasons to assume that?