The trick is to develop an effective way to keep track of your process in this odyssey, both so you can retrace your steps in case you get lost, and so that you can appreciate the evolution and keep track of intellectual pedigrees.
Psychophysiology is used instead.
Even so, a few minutes looking through the results may lead us to rethink what we mean by 'physiological psychology', and will also suggest some means to focus the search. The careful observer looks for patterns , and especially for call numbers that turn up frequently. I found a number of books that look like they'd be useful if I was trying to orient myself to Physiological Psychology. Oxford University Press, 1994. MIT Press, c1993.