Fig. 5. Relationship between the level of activity in cell SE1 and cell 204. Example demonstrating the response evoked in cell 204 (top trace) and in DP(12) by a 1 s current pulse injected into cell SE1 (middle trace). Diagonal lines indicate the parameter measured (depolarization area) to estimate the level of excitation in cell 204. B. Graph comparing the amount of depolarization area evoked in cell 204 as a function of cell SE1's firing frequency. In three prepartions, the amount of depolarization area induced in cell 204 increases linearly over the range of cell SE1 firing frequencies employed; r = 0.92 (filled squares), 0.93 (open triangles) and 0.88 (open circles).Return to Results