. Author manuscript; available in PMC: 2010 Aug 1.

Published in final edited form as: Neuropeptides. 2009 Jun 21;43(4):283–293. doi: 10.1016/j.npep.2009.05.006

Table 1.

Effects of insulin on the single cell unit activity of cerebellar neurons.

Electrophysiological effects	Number of neurons tested	Number of significant neuronal responses	Number and percent of neurons showing significant effects
Effects of control drugs:
1. GABA inhibition	46	285	46/46 (100%)
2. Glutamate excitation	5	21	5/5 (100%)
GABA-dependent effects of insulin:
1. GABA-dependent insulin inhibition	47	148	29/47 (62%)
2. HNMPA blocks GABA-dependent insulin inhibition	13	35	13/13 (100%)
3. Insulin decreases GABA inhibition	47	59	18/47 (38%)
GABA-independent effects of insulin:
1. GABA-independent insulin excitation	47	15	3/47 (6%)
Total number of neurons / microiontophoretic trials	47	563