alternative_transmitter_triggered.patch

diff --git a/spiking_simulations/LPLConnection.cpp b/spiking_simulations/LPLConnection.cpp
index dfda86e..be755eb 100755
--- a/spiking_simulations/LPLConnection.cpp
+++ b/spiking_simulations/LPLConnection.cpp
@@ -250,7 +250,7 @@ void LPLConnection::compute_err()
 	temp->add(1e-3); // TODO make a parameter called xi to be used denominator
 	err->div(temp);
 	err->scale(lambda_);
-	err->add(delta); // add transmitter triggered plasticity 
+	// err->add(delta); // add transmitter triggered plasticity 
 
 	// Compute -dzdt error signal on spike trains using the van Rossum trick
 	for ( unsigned int i = 0 ; i < sc->size(); ++i ) add_to_err(sc->at(i), -1.0*phi_);
@@ -331,6 +331,23 @@ void LPLConnection::process_plasticity()
 			el_sum->add_specific(didx, de);
 		}
 	}
+
+
+	// add transmitter triggered plasticity term
+	// loop over all pre spikes  
+	for (SpikeContainer::const_iterator spike = src->get_spikes()->begin() ; // spike = pre_spike
+			spike != src->get_spikes()->end() ; ++spike ) {
+		// loop over all postsynaptic target cells 
+		for (const NeuronID * c = w->get_row_begin(*spike) ; 
+				c != w->get_row_end(*spike) ; 
+				++c ) { // c = post index
+
+			// determines the weight of connection
+			AurynWeight * weight = w->get_data_ptr(c); 
+			const AurynLong didx = w->data_ptr_to_didx(weight); 
+			el_sum->add_specific(didx, delta); // add the transmitter triggered term
+		}
+	}	
 }