Table 1.

Parameters of baclofen-stimulated GTP-binding in the hippocampus of young and aged F344 rats

Parameter	Young	Aged-Total	Aged-Unimpaired	Aged-Impaired
EMAX (% of young)	100.00 ± 10.33	99.30 ± 11.35	89.48 ± 12.88	107.50 ± 16.42
Log EC50 (M)	−4.78 ± 0.18	−5.01 ± 0.24	−4.89 ± 0.26	−5.14 ± 0.36
Hill Slope (NH)	1.00 ± 0.34	0.69 ± 0.21	0.96 ± 0.47	0.59 ± 0.23