Neural correlates of attentional expertise in long-term meditation practitioners

Brefczynski-Lewis et 10.1073/pnas.0606552104.XXYYYYY103.

Supporting Information

Files in this Data Supplement:

SI Figure 3
SI Figure 4
SI Table 4
SI Table 5
SI Figure 5
SI Table 6
SI Table 7
SI Table 8
SI Figure 6
SI Methods

SI Figure 3

Fig. 3. Meditation block effects in additional controls on lateral 3D PALs brains. (A) t test using probability of gray matter maps as covariates for Med. vs. Rest in EMs vs. NMs. (B) Ten INMs activation for Med. vs. Rest. (C) t test subtraction of EM vs. INMs. (D) t test subtraction of four LHEMs vs. INMs. (A-D, P < 0.05 corrected, color scale is the same as Fig. 1.) (E) "Late" (last 80 seconds) activation in MHEMs (P < 0.05 uncorrected).

SI Figure 4

Fig. 4. (A) Two representative axial slices, z = 10, z = 38, showing voxel-wise regression results for functional MRI activation vs. hours of practice at 0.02 uncorrected. See Tables 1-3 for partial correlation values for regions commonly and differentially activated between groups. (Right) Representative scatterplot showing negative correlation of activation vs. hours of practice for left DLPFC from the attention-shifting ROIs. Solid red line shows slope. Red dotted lines represent 95% confidence level. Four LHEMs and four MHEMs data points are color-coded brown and yellow orange, respectively. (B) Time course of hemodynamic response in Rest vs. Med. block for INMs (light blue), NMs (blue), LHEMs (brown), and MHEMs (yellow orange). In MeFG/Acc MHEMs go below baseline. Left IPS, LO show more sustained responses for MHEMs. (C) State-by-group ANOVA results showing MeFG cluster with less activation for EMs vs. INMs in Med. for sounds. (D) Axial slice showing regions that correlate positively (orange) or negatively (blue) for all sounds in Med. with hours of practice in EMs. (E) Scatterplot showing positive correlation in left Ins. Orange square indicates one outlier omitted from correlation. (F) State-by-group ANOVA for negative sounds showing P. Cing and MedFG/Acc (EM < INM). (G) Regions correlating response to negative sounds with hours of practice in EMs. (H) Positive correlation in subthalamus.

SI Figure 5

Fig. 5. Activation for sounds vs. silence in Med. vs. Rest blocks for EMs (A), regular NMs (B), INMs (C), and four MHEMs (D). Note that four MHEMs have less activation for sounds in Med. vs. Rest in most regions compared with EMs as a group and INMs. Also, regions such as P. Cing and MeFG show less activation in Med. vs. Rest.

SI Figure 6

Fig. 6. Graph showing state effect for pupil diameter increases in Med. vs. Rest for all three participant groups.