So I've been reading a lot of papers on the reward pathway. But since I'm not schooled in any relevant knowledge I'm having trouble grasping the chain of events. Most papers detail just bits and pieces, but not the full sequence of events.
I'm trying to grasp how the error prediction signal works.
This is my guess so far:
Photosensitice cell A
Light processing neuron B
Dopamine neuron C
Light strikes A
A triggers B
B spikes after N triggers.
B triggers C
C spikes after N triggers.
C keeps repeadetly spiking for as long as its internally coded reward size/duration expectation.
D receives predecition triggers spikes causing action.
Reward comes, neural connections are strengthened.
If reward doesnt come in predicted time connection degrades.
Am I correct in this deduction or way off?
How does the actual reward get communicated? By dopamine release in blood?
By the same neurons that coded the reward prediction? If so, how do those exact neurons get triggered to release reward?