Each node within each layer also receives a delayed output from {HEAD ~ all the other nodes} within {TAIL ~ the same layer} 
Each node within each layer also receives a delayed output from { HEAD ~ all the other nodes } within { TAIL ~ the same layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL