How Brain-like is the Spinal Cord?

"Theorizing about brain functions is often considered slightly disreputable and anyhow a waste of time -perhaps even ''philoso- ical''" 1 P. S. CHURCHLAND At present there are no unanimously accepted general con­ cepts of brain operation and function. This is especially the case with regard to so-called "higher" functions such as per­ ception, memory or the coupling between sensory input and motor...