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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2010 Jun 20;196(8):581–599. doi: 10.1007/s00359-010-0545-1

Fig. 5.

Fig. 5

Birds housed under breeding-like conditions have longer ABR peak latencies and inter-peak intervals than those housed under non-breeding-like conditions. a) Representative ABR traces from a breeding (thin line) and non-breeding (thick line) female in response to a 4 kHz tone. Traces are aligned in time and stimulus onset occurs at time zero. The breeding bird has a delayed response compared to the non-breeding bird; note that this temporal disparity increases between peak 1 and peak 2. b) Peak 1 latencies of birds exposed to breeding-like conditions (open circles) are longer than those housed under non-breeding-like conditions (closed circles). The same pattern was observed for peak 2 latencies (c) and inter-peak intervals (d). Data are means +/− S.E.M. generated in response to iso-intensity tones (70 dB SPL) and clicks (70 dB p.e. SPL). Missing data points were filled in with appropriate group averages before data were plotted and analyzed (see main text). Breeding birds n = 19; non-breeding birds n = 20.