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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: J Neural Eng. 2014 Jun 12;11(4):046007. doi: 10.1088/1741-2560/11/4/046007

Fig. 3. Cross-frequency comparisons of direction tuning show high similarity among higher frequency bands and spikes.

Fig. 3

A. Number of significantly modulated channels (1-way ANOVA p<0.01). Error bars indicate 95% confidence intervals as determined by bootstrapping. B. Directional modulation index (Methods). C. Cross-frequency correlations of preferred direction within the same channel. Upper left half: participant T2. Bottom right half: participant S3. D. Cross-frequency correlations of modulation index within the same channel, in both participants. Same conventions as C. E. The distribution of preferred directions at the group level. Blue lines: preferred directions of individual, significantly modulated features. Red bars indicate the vector sum of all preferred directions. Center circles: p=0.001, 0.01 and 0.05 significance levels (Rayleigh test). Radius denotes unity. Data is taken from 0.3–2.3sec following cue onset of all trials, recorded over 12[14] research sessions.