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. 2008 Nov;124(5):3038–3052. doi: 10.1121/1.2981637

Figure 7.

Figure 7

Scatter plots illustrating the relative fourth moment as a function of BF for the Chopper group for delayed noise attenuations of −1 dB (A), −2 dB (B), −3 dB (C), and −4 dB (D). Gray diamonds show units with chopper PST histograms (Chop); gray triangles show units characterized as regular (Reg). The open diamonds illustrate the relative fourth moments obtained from low BF phase-locked (PL) units that could not be characterized as either primarylike or chopper. The black squares and solid black line show the relative fourth moment averaged in one-octave bands (ave), centered at harmonic frequencies of the rippled noise (i.e., 250, 500, 750, 1000 Hz, etc). The downward pointing arrow indicates the frequency of the third harmonic. Note that the ordinate changes scales in (A)–(D).