The teaching phase can also utilize {TAIL ~ a feed forward gradient decent method} which follows the output computations and that also includes the local feedback and {HEAD ~ the crosstalk} 
The teaching phase can also utilize { TAIL ~ a feed forward gradient decent method } which follows the output computations and that also includes the local feedback and { HEAD ~ the crosstalk }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD