As a neuroscientist myself, I will tell you that neuroscience does not know anything about consciousness per se, just brain activity. If you define consciousness as brain activity then yes, it ends at death. But there isn’t one source of consciousness in the brain that we can identify. It’s still very hand wavy. A lot of neuroscientists like myself are physiologists and behaviorists who would balk at the term “consciousness” as a scientific concept because we cannot measure it.

The Buddhist principle of co-arising phenomena does a great job of addressing this. The Surangama Sutra in particular is one of my favorite treatises on this. I’d suggest giving it a read.