Table 2. Peak power and coherence values for monkey LU.

			Coherence
Electrode site	Power		2			3			4
	Peak	f, Hz	Peak	f, Hz	lag, ms	Peak	f, Hz	lag, ms	Peak	f, Hz	lag, ms
1	2.32	23	0.115	21	−4	0.300	29	−1	0.026	20	−20
2	5.48	21		—		0.260	20	3	0.052	20	−21
3	3.69	22		—			—		0.124	17	26
4	4.09	18		—			—			—

Electrode site numbers correspond to the numbered locations in Fig. 2. The primary motor site is numbered 1, and the postcentral sites are numbered 2, 3, and 4. The two columns under Power show the power (normalized by the mean power) of the largest power spectral peak and its frequency in Hz. In the columns under Coherence are shown the peak coherence value, peak frequency in Hz, and phase difference converted to time lag in milliseconds for each pair of sites. Values are shown only for coherence spectra determined to be significant by the permutation procedure described in Methods.—, a redundant pairing or the pairing of a site within itself, because coherence is a pairwise measure between different sites. A positive number for the time lag indicates that the electrode site at the left leads the site at the top, and a negative number indicates that it lags.