These questions confirm my suspicion that you have not read the tokenomics paper, contrary to what you’ve said.
Regarding your question about who the neuron will follow, this was touched on Earlier in this thread, although, to be fair, it was not mentioned explicitly as the answer to your question.
The rest of your questions on the other hand have been explicitly answered (and underlined) on the first page of the tokenomics documentation.
Below is a screenshot from the tokenomics paper which answers your questions regarding who/what controls the neuron, and how the rewards are disbursed.
