This page contains a Flash digital edition of a book.
Mind & Brain, the Journal of Psychiatry


Figure 2. Three coherence-difference maps are presented in this figure. In the top row is coherence during the 3-month posttest minus baseline coherence for the delayed-start subjects who did not meditate over this time. In the middle row is coherence during the 3-month posttest minus baseline coherence for the TM subjects. In the bottom row is coherence during the 6-month posttest minus 3-month posttest coherence for the delayed-start subject, who had been meditating over this time. As seen in this figure, there are few recording pairs with higher coherence in the control group (3-month posttest minus pretest), and many areas of increased coherence pairs after 3 months of TM practice in the TM and delayed-start groups.


presents the means, standard error, t-test statistics, and significance for these variables.


Secondary Analysis Repeated measure MANOVAs reported significant increases


in D-KEFS in the delayed-start group after they learned TM compared to the time from baseline to the 3-month posttest (F(1, 8)7.8, p.024, h2.49). Theta/beta ratios also sig- nificantly decreased from the 3-month to 6-month posttest (4.3) in this group when compared to baseline to 3-month posttest (1.3) (F(1, 8)5.1, p.053, h2.39). There were no within group differences in the delayed-start group on other measures.


DISCUSSION In this random assignment pilot test, 3-months practice


of the TM technique resulted in significant decreases in theta/beta ratios, significant increases in theta coherence, and trends for increases in alpha and beta coherence during tasks. These brain measures were supported by significant increases in Letter Fluency and significant increases in positive behavior reported by the parents. The single-group within analysis of the delayed-start group yielded similar decreases in theta/beta ratios and increases in Letter Fluency after the delayed-start group learned TM.


Table 2. Mean Scores (Standard Error) for the Pretest, 3-Month, and 6-Month Posttests for the D-KEFS Verbal Fluency Scores TM Group


Variable Letter fluency


Category fluency Category switching


Total switching accuracy


20.3 (3.5) 27.2 (3.0) 8.8 (.9) 6.8 (.8)


Pretest 3-Month Posttest 6-Month Posttest 30.0 (4.1)


27.1 (3.5) 25.3 (3.7) 8.7 (.8) 9.3 (.8)


29.8 (2.3) 9.0 (1.0) 10.7 (1.0)


Pretest


22.6 (1.9) 29.3 (3.2) 10.6 (.6) 7.3 (.7)


Delayed Start Group 3-Month Posttest


23.1 (2.7) 26.3 (2.3) 10.2 (.7) 8.7 (1.1)


6-Month Posttest 31.8 (2.9)


31.1 (2.7) 11.5 (.5) 9.5 (.4)


Note: There were significant increases in Letter Fluency in the TM group from pretest to 3-month posttest, and in the delayed-start group from the 3-month posttest to 6-month posttest. Significant differences are bolded for easy identification.


M&B 2011; 2:(1). July 2011 78 www.slm-psychiatry.com


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89