I think you mean, to study one's own consciousness through introspection (and introspection alone). Certainly you can climb into an FMRI or run TMS experiments on yourself; it's just kind of awkward.
What you're talking about there is the distinction between attention and arousal, something that is found well beyond the sphere of buddhism. Introspection is, as you say, anecdotal; it can provide a starting point for real research, but certainly not an ending point.
Which is clearly not the case.
Which is clearly not the case.
I'm not sure what that is supposed to mean.
True, but certainly not relevant.
New metaphors don't always contribute to our understanding of that which they are a metaphor for.