I think the question here is not “is this an open question” but “are there people who disbelieve this?”. I can imagine neurobiologists who cannot rule out epiphenomena about thoughts.
Neuroscientists generally assume that all mental processes have a concrete neurobiological basis.
Searching for something similar in Google Scholar might give you lots of sources to suggest to the grad student that most neuroscientists are reductionists.
I think the question here is not “is this an open question” but “are there people who disbelieve this?”. I can imagine neurobiologists who cannot rule out epiphenomena about thoughts.
True, I can imagine that as well. I guess my question was really more about prevalence. How common are these people?
I came across this in an unrelated discussion:
Searching for something similar in Google Scholar might give you lots of sources to suggest to the grad student that most neuroscientists are reductionists.
This is vague enough to not be at all inconsistent with epiphenomenalism.