If it was anything more than physical, these things wouldn’t affect consciousness so easily.
We know that it changes perception and behavior, because those are the things we can measure. We have no idea if it affects consciousness, because we don't even know what that is.
[…] which suggests to me that consciousness must be nothing more than the effects of complex physical systems in our brains.
The problem I have with these studies is that they all test the functions of the brain and its hemispheres, and then argue what the produced consciousness(es) could look like based on some preconceived notion of what a consciousness can an cannot do. But who says that one consciousness cannot make two different choices simultaneously for example? Ofc it's the best we have right now and imo very interesting and important work, but it's still nothing like actually "detecting" consciousness and analyzing its properties. The sad truth is that we still have no f*cking clue.
I know that this all sounds very ominous, but that's kind of the point. Consciousness as I'd define it is not just the mechanical function of the brain, but the experience of being "present".
We know that it changes perception and behavior, because those are the things we can measure. We have no idea if it affects consciousness, because we don't even know what that is.
The problem I have with these studies is that they all test the functions of the brain and its hemispheres, and then argue what the produced consciousness(es) could look like based on some preconceived notion of what a consciousness can an cannot do. But who says that one consciousness cannot make two different choices simultaneously for example? Ofc it's the best we have right now and imo very interesting and important work, but it's still nothing like actually "detecting" consciousness and analyzing its properties. The sad truth is that we still have no f*cking clue.
I know that this all sounds very ominous, but that's kind of the point. Consciousness as I'd define it is not just the mechanical function of the brain, but the experience of being "present".