Figure 3.

Comparison of the total mean power in the β-frequency (15-40 Hz) and γ-frequency (40-75 Hz) bands for each respiratory cycle during odor stimulation in P7 and mature rats. P1-P4 represents four respiratory cycles immediately before odor onset; O1-O4 represents four respiratory cycles during odor stimulation. Mean baseline (preodor) power spectra were calculated over four sniff cycles (P1-P4) with power spectra before and during (O1-O4) a 2 s odor stimulus expressed as a percentage of this baseline activity. Odor stimulation elicits stronger β- and γ-frequency responses in the mature rats. Error bars denote ± SE.