I know very little about neuroscience and psychology, but I am curious about how our understanding of thought fits into our picture of the brain.
Thoughts, as I understand them, are a kind of internal speculation; they often come in the form of an internal voice or perhaps as mental images. I can, for example, think in verbal language (which contains propositions and such), or I can imagine a picture of mountains—this, of course, being all in my own mind.
Could it make sense to say, then, that thoughts serve as a kind of internal sensory data? My theory is that perhaps the brain projects processing as a kind of internal sense (thoughts), from which it can extract new data and continue processing—this being more efficient than information processing without a kind of feedback loop.
Is this ever articulated as a theory of thought? Otherwise, what is the neural/psychological basis for how thoughts arise and are used by the brain?