Figure 2.
Four stimulus protocols. Stimulus protocol 1: synapse 1 in the P1 pathway receives a stimulus of 100 Hz for 1 s. Stimulus protocol 2: all synapses in the P1 pathway receive a stimulus of 100 Hz for 1 s. Stimulus protocol 3: all synapses in the P2 pathway receive a weak stimulus (5 Hz for 4 s). Stimulus protocol 4: all synapses in the P1 pathway receive a strong stimulus (100 Hz for 4 s) and all synapses in the P2 pathway receive a weak stimulus (5 Hz for 4 s) simultaneously.
