document: Noise and the PSTH response to current transients : II . Integrate-and-fire model with slow recovery and application to motoneuron data For pt.I see ibid. , vol .11 , no. 2 , p.135-151 -LRB- 2001 -RRB- . A generalized version of the integrate-and-fire model is presented that qualitatively reproduces firing rates and membrane trajectories of motoneurons . The description is based on the spike-response model and includes three different time constants : the passive membrane time constant , a recovery time of the input conductance after each spike , and a time constant of the spike afterpotential . The effect of stochastic background input on the peristimulus time histogram -LRB- PSTH -RRB- response to spike input is calculated analytically . Model results are compared with the experimental data of Poliakov et al. -LRB- 1996 -RRB- . The linearized theory shows that the PSTH response to an input spike is proportional to a filtered version of the postsynaptic potential generated by the input spike . The shape of the filter depends on the background activity . The full nonlinear theory is in close agreement with simulated PSTH data
doc_bio_tags: O O O B O O O O O O O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O B I O O O O O O O O O O O O O O O O O O O B I I I O O B I O O O O O O O O O O O O O O B I O O O O O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O
extractive_keyphrases: psth firing rates membrane trajectories passive membrane time constant recovery time spike afterpotential motoneuron
abstractive_keyphrases: integrate-and-fire model spike-response model