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. 2016 Mar 25;11(3):e0152374. doi: 10.1371/journal.pone.0152374

Fig 4. Experiment 1 results.

Fig 4

(A, B) Fundamental perception bias was correlated with f0 peak magnitude in response to missing fundamental and fundamental present tones in each condition (the effect of age is controlled). (C) Histogram of PLV differences at f0 between conditions. While many subjects showed a statistically significant distinction between conditions as determined by resampling (14/39 subjects), subjects did not show consistency in the condition with greater amplitude; 9 had a greater amplitude in the FP condition and 5 had a greater amplitude in the MF condition. (D, E) The PLV of the f0 in each condition was positively correlated with the mean PLV in the low gamma frequency range in both conditions. Both the relationships between f0 PLV and perceptual bias and between f0 PLV and gamma PLV appear more clearly in the MF condition (red), when the fundamental frequency is not present in the stimulus and must be computed. FP: fundamental present condition; MF: missing fundamental condition.