Comments:
Decay of internal calcium concentration. By a destexhe, 1992. Parameter changes by p aguiar and m sousa 2008. Originally from destexhe et al. (1993), taken from aguiar et al. (2010), model no. 128559, with one change: solve method changed to euler (line 76). Animal model is from experiments in paper, kinetics come from previous study of wdr neurons (aguiar et al. 2010).