Means and standard errors of relative EEG power spectra.

<p>The four rows are for delta (A, B), theta (C, D), alpha (E, F) and beta (G, H) EEG bands, respectively; while the two columns are for the non-reproductive stage (left) and the reproductive stage (right), respectively. Filled stars or open triangles denote that there were significant or marginally significant differences between the corresponding electrode pairs during playback of a given acoustic stimulus (<i>p</i><0.05 for filled stars and 0.05<<i>p</i><0.1 for open triangles), open stars denote that there were significant differences between the corresponding acoustic stimuli for a given channel (<i>p</i><0.05), while asterisks denote that relative EEG power for the mesencephalon (PR3 and PR4) were significantly higher than that for the left telencephalon (PR1) (<i>p</i><0.05). PR1, PR2, PR3 and PR4, the four electrode pairs; WN, white noise; HSA, high sexual attractive call; LSA, low sexual attractive call.