This model replicates Fig. 1b of Lytton WW; Orman R; Stewart M. Broadening of activity with flow across neural structures. Perception, 37:401-407, PMID: 18491717. 2008. runs under Unix/Linux and mswin (updated 20110331) mostly NOT standard NEURON -- do not use to learn NEURON To run: cd b08dec23 nrnivmodl nrngui mosinit.hoc and press the recreate button. When the model stops (after about 2 1/4 minutes on a 2.8GHz Pentium 4) a graph similar to figure 1 b from the paper will be displayed: Additional use notes: mknewnet=1 at top of mosinit.hoc -- can switch to 0 if want to run again after first run to inhibit re-creation of the net.net network connectivity file. graphics shows excitatory (blue) and inhibitory (red) raster individual inhibitory (IN) and excitatory (SU) cells from each column are available from the menu. This model code was supplied by Bill Lytton.