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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: J Exp Zool A Ecol Genet Physiol. 2013 Feb 19;319(4):213–224. doi: 10.1002/jez.1785

Figure 5.

Figure 5

The onset and offset of phasic EMG activity in TA (A) and CT (B) muscles are aligned with the onset and offset of subglottal pressure fluctuations. The first (S) and the last (E) pressure fluctuation were used for alignment of EMG bursts. One to five EMG bursts (usually with increasing intensity) are produced before pressure fluctuations become visible. They almost synchronously stop with the last pressure fluctuation. The relationships were investigated in 86 calls (TA muscle recorded in six rats) and 23 calls (CT muscle recorded in three rats), respectively. 50 kHz trills, 50 kHz complex calls, and 50 kHz composite calls were considered.