Table 3. Differences in kinetic parameters for Ca²⁺ signals evoked by different agonists.

Cerebellar astrocytes					Cortical astrocytes
Condition	Rise	AUC	Peak	Lat	Condition	Rise	AUC	Peak	Lat
Glu vs ATP	0.45	0.28	0.26	0.32	Glu vs ATP	0.15	0.23	0.037	0.27
His vs ATP	0.23	0.27	0.19	0.53	His vs ATP	0.40	0.16	0.11	0.46
Glu vs His	0.46	0.24	0.28	0.41	Glu vs His	0.26	0.13	0.10	0.38

Three agonists: ATP, glutamate (glu) and histamine (his) were compared at a concentration of 1 mM. Values of difference (D) were calculated as outlined in Methods. Lower values indicate a greater degree of similarity between the distributions.