Table 1.

Theta and gamma power during baseline running

	Power			No. of Recordings
Rat ID	Theta	Low gamma	High gamma	Fam Saline	Fam Physo	Nov Saline	Nov Physo
411Y	39.81 ± 0.45	34.68 ± 0.23	32.72 ± 0.15	3	6	1	2
412Y	44.85 ± 1.08	34.32 ± 0.67	31.25 ± 0.36	3	5	1	2
475Y	34.09 ± 0.13	28.96 ± 0.12	27.25 ± 0.17	3	3	1	1
484Y	35.63 ± 0.12	31.22 ± 0.13	28.67 ± 0.23	4	3	2	1
494Y	47.18 ± 0.48	37.66 ± 0.61	33.92 ± 0.54	5	3	2	1
495Y	43.43 ± 1.24	37.39 ± 0.55	32.10 ± 0.39	5	5	2	1
520Y	30.76 ± 0.51	25.32 ± 0.47	27.56 ± 0.30	4	3	2	1
Mean young	39.39 ± 2.31	32.79 ± 1.72	30.50 ± 1.00
437O	38.35 ± 0.59	30.60 ± 0.22	29.06 ± 0.15	6	6	2	1
441O	37.27 ± 0.69	31.21 ± 0.77	29.55 ± 0.71	2	1	2	0
443O	35.79 ± 1.17	29.13 ± 1.37	26.92 ± 1.58	4	4	1	2
444O	41.84 ± 1.08	35.88 ± 0.60	32.27 ± 1.00	2	2	2	0
487O	39.66 ± 0.33	31.87 ± 0.85	29.38 ± 0.55	5	3	2	1
488O	39.78 ± 0.69	35.55 ± 0.71	30.55 ± 0.31	4	5	2	1
489O	39.53 ± 1.29	33.15 ± 1.21	30.43 ± 0.87	3	3	1	1
491O	45.94 ± 1.39	36.99 ± 0.92	31.79 ± 0.53	3	3	1	2
492O	46.33 ± 0.42	35.80 ± 0.018	31.84 ± 0.13	4	3	1	2
493O	40.18 ± 0.93	28.40 ± 0.20	26.17 ± 0.17	3	4	2	1
Mean old	40.47 ± 1.07	32.86 ± 0.97	29.80 ± 0.64

Values are absolute power (means ± SE) in the theta, low gamma, and high gamma frequency ranges and the number of recording sessions in each condition for each rat. There was no difference between young (Y) and old (O) rats in baseline measures of power in any frequency range. Fam, familiar; Nov, novel; Physo, physostigmine.