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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Hear Res. 2019 Aug 8;382:107779. doi: 10.1016/j.heares.2019.107779

Figure 6.

Figure 6.

Comparison of single polarity, added, and subtracted frequency content for FFRs to the 40 ms ‘da’ stimulus. As can be seen in the blue difference line, the single polarity has a larger response than the subtracted response across all frequencies, while compared to the added FFR (black line), it shows similar magnitude responses for the lower frequencies (<400 Hz) and greater response magnitude for the mid frequencies (~500–800 Hz). That the single polarity response has the largest mid-frequency encoding suggests that the mid frequencies can be extracted from both the FFRENV and FFRtfs and that there is not a clear frequency cutoff between ENV and TFS for a complex sound.