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. Author manuscript; available in PMC: 2011 Sep 30.
Published in final edited form as: J Neurosci Methods. 2010 Jul 15;192(1):146–151. doi: 10.1016/j.jneumeth.2010.06.020

Figure 2. Spectrum computed using conventional methods and multi-taper methods.

Figure 2

Spike-LFP coherence in area V4 in awake macaque during an attention guided saccade task. Shown in each graph are the coherences for two different conditions differing only in selective attention, along with jackknife estimates of the errors. The differences can only be seen in the Multitaper estimate on the left, smoothed with a 15 Hz bandwidth. The unsmoothed conventional estimate in the right panel, with a frequency resolution of 1 Hz, is not able to differentiate between the two conditions. Note also that the multi-taper method provides Jackknife based confidence intervals (figure courtesy Pascal Fries).