Skip to main content

Table 1 Mean (M) and standard deviation (SD) of PLI (Phase Locking Index) and IPC (Interbrain Phase Coherence) maxima across the 8 pairs of guitarists during the preparatory period of metronome setting and during the period of guitar playing separately for the 16 electrodes.

From: Brains swinging in concert: cortical phase synchronization while playing guitar

Measures Electrodes
   F7 F3 Fz F4 F8 T7 C3 Cz C4 T8 P7 P3 Pz P4 P8 Oz
Metronome                  
PLI-A M .59 .64 .63 .63 .60 .58 .68 .65 .66 .65 .37 .50 .50 .48 .45 .34
  SD .07 .08 .08 .07 .06 .12 .10 .09 .10 .14 .04 .07 .08 .08 .10 .06
PLI-B M .55 .60 .59 .62 .56 .47 .62 .60 .63 .52 .40 .48 .49 .47 .37 .36
  SD .12 .11 .11 .12 .11 .10 .09 .09 .10 .09 .08 .11 .12 .12 .10 .06
IPC-AB M .44 .44 .42 .43 .43 .38 .46 .44 .45 .37 .37 .40 .40 .40 .35 .33
  SD .06 .06 .08 .08 .07 .07 .06 .08 .07 .04 .08 .10 .09 .07 .09 .06
IPC-BA M .41 .45 .43 .45 .37 .43 .47 .44 .46 .43 .31 .36 .37 .38 .35 .31
  SD .08 .09 .08 .07 .06 .09 .12 .08 .09 .10 .07 .08 .06 .05 .04 .04
Play onset                  
PLI-A M .57 .63 .61 .60 .53 .49 .57 .57 .58 .52 .45 .51 .50 .53 .52 .44
  SD .07 .06 .07 .06 .09 .11 .13 .10 .13 .12 .06 .13 .12 .15 .18 .14
PLI-B M .52 .59 .59 .57 .52 .55 .61 .61 .61 .52 .44 .49 .51 .54 .44 .43
  SD .05 .08 .10 .09 .10 .11 .11 .11 .09 .16 .08 .14 .15 .12 .09 .12
IPC-AB M .41 .44 .43 .42 .39 .39 .46 .46 .45 .38 .36 .39 .39 .40 .38 .36
  SD .09 .12 .13 .12 .11 .07 .10 .11 .10 .12 .08 .05 .05 .07 .10 .06
IPC-BA M .45 .48 .47 .47 .38 .40 .46 .46 .46 .37 .32 .38 .40 .42 .40 .32
  SD .12 .09 .08 .11 .11 .09 .11 .11 .10 .11 .05 .11 .10 .11 .11 .10
  1. PLI = Phase Locking Index; IPC = Interbrain Phase Coherence; A = Guitarist A; B = Guitarist B; AB = Cz electrode of guitarist A to the other electrode of guitarist B; BA = Cz electrode of guitarist B to the other electrode of guitarist A; M = Mean; SD = Standard Deviation.