Layer-specific population response in a simplified feed-forward network of the insect olfactory pathway. Average population response in the first layer (left) to a step-like Poisson input shows a phasic-tonic response as observed in antennal lobe projection neurons. In the second layer (middle) the population response profile is dominated by a sharp onset transient and tonic firing is diminished. The final output layer (right) with reduced adaptation current integrates convergent input.
Farkhooi et al. BMC Neuroscience 2009 10(Suppl 1):O10 doi:10.1186/1471-2202-10-S1-O10