[Article in German] BÃ¶hm M. Adenosine has a negative inotropic effect in cardiac atrial preparations (direct negative inotropic effect). This effect is probably due to an activation of a potassium outward current which shortens the action potential duration and hence reduces the force of contraction.
A scatterplot is a graph that is used to plot the data points for two variables. Each scatterplot has a horizontal axis (x-axis) and a vertical axis (y-axis). One variable is plotted on each axis.
The first technique is the scatter plot analysis, first described by Touchette, MacDonald and Langer (1985). Once you've built your square to contain all the information you need, you can export the square to Google Spreadsheets and create a rough scatter plot.