But I suspect that the hardest nut to crack will be emotion. It’s the least understood domain of information in the brain. The best that can be said of it is that many brain structures responsible for emotion have been located.11 People sometimes call them an emotional network or an emotional circuit, but the system isn’t understood at the precision of a circuit.
It is still an open question as to whether emotions are a necessary component of consciousness. They are something we deal with and can influence consciousness but that is a different issue than whether emotional states are necessary to be conscious.
