The left-brain system is involved in conscious bonding associated with prediction and reward.

“Now again this isn't about emotion versus rationality. This is about autonomic versus more conscious forms of bonding. So on the left brain side of things there is a processing more of narratives that are very concrete logical narratives. Okay. And again I have to zoom out and and just really tamp down the idea that it's not that one side of the brain is emotional and the other side is rational but rather there's a bit of a dominance for the left brain circuitry to be involved in the kinds of bonding that are associated with prediction and reward.”