Pharmacological characterization of receptor types.

<p>Representative traces of changes in fluorescence intensity over time after addition of pharmacological agonists (at 100 µM) selective for P2X receptors (BzATP), P2Y receptors (2-MeS-ADP), AMPA/kainate receptors (KA), mGlu receptors (DHPG), H1 receptors (Pyri Di) and H2 receptors (Dim Di), in cerebellar (<b>A</b>) and cortical (<b>B</b>) cells. <b>C</b>) Percentage of cerebellar and <b>D</b>) cortical cells responding to each agonist. Data for each agonist are from 3–6 coverslips of cells, obtained from 2–3 culture preparations. Total cells tested for each agonist ranged from 64 to 202.