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Table 1 Relative EEG band power and theta/beta ratios during resting conditions (eyes open, eyes closed) and during a continuous performance task

From: Mindfulness based cognitive therapy improves frontal control in bipolar disorder: a pilot EEG study

 

Control

 

Bipolar

Bipolar MBCT

Control

Bipolar

Bipolar MBCT

 

MEAN

STDEV

 

MEAN

STDEV

MEAN

STDEV

MEAN

STDEV

 

MEAN

STDEV

 

MEAN

STDEV

    

Left Frontal (F3)

  

Right Frontal (F4)

Resting Eyes Open

               

relative theta band power (4-7 Hz)

0.29

0.10

 

0.23

0.07

0.27

0.09

0.30

0.09

 

0.24

0.06

 

0.27

0.09

relative alpha band power (7-14 Hz)

0.35

0.03

 

0.38

0.11

0.33

0.06

0.35

0.03

 

0.35

0.05

 

0.34

0.06

relative beta band power (15-30 Hz)

0.37

0.10

 

0.39

0.10

0.40

0.09

0.35

0.08

 

0.41

0.08

 

0.39

0.08

theta/beta ratio

0.94

0.72

 

0.63

0.24

0.74

0.38

0.92

0.48

 

0.63

0.23

 

0.74

0.39

Resting Eyes Closed

               

relative theta band power (4-7 Hz)

0.24

0.05

*

0.19

0.05

0.22

0.07

0.25

0.06

*

0.19

0.04

t

0.24

0.08

relative alpha band power (7-14 Hz)

0.41

0.05

 

0.39

0.07

0.40

0.07

0.41

0.05

 

0.39

0.08

 

0.39

0.07

relative beta band power (15-30 Hz)

0.36

0.04

*

0.43

0.08

0.38

0.08

0.34

0.03

*

0.42

0.08

#

0.37

0.08

theta/beta ratio

0.68

0.16

*

0.46

0.20

0.62

0.34

0.75

0.21

*

0.47

0.16

t

0.69

0.36

Continuous Performance Task

               

relative theta band power (4-7 Hz)

0.28

0.06

 

0.27

0.07

0.24

0.07

0.29

0.06

 

0.27

0.06

 

0.24

0.07

relative alpha band power (7-14 Hz)

0.34

0.02

 

0.34

0.04

0.34

0.04

0.35

0.03

 

0.34

0.05

 

0.33

0.05

relative beta band power (15-30 Hz)

0.37

0.06

 

0.39

0.07

0.41

0.09

0.36

0.05

 

0.39

0.07

 

0.42

0.11

theta/beta ratio

0.81

0.28

 

0.72

0.28

0.64

0.25

0.84

0.29

 

0.71

0.25

 

0.64

0.30

 

Left Cingulate (C3)

  

Right Cingulate (C4)

Resting Eyes Open

               

relative theta band power (4-7 Hz)

0.27

0.09

 

0.22

0.05

0.24

0.10

0.27

0.09

 

0.22

0.05

 

0.25

0.10

relative alpha band power (7-14 Hz)

0.36

0.02

 

0.37

0.04

0.34

0.06

0.35

0.03

 

0.37

0.04

 

0.35

0.05

relative beta band power (15-30 Hz)

0.38

0.10

 

0.41

0.05

0.42

0.10

0.37

0.09

 

0.41

0.06

 

0.40

0.09

theta/beta ratio

0.87

0.72

 

0.55

0.19

0.69

0.49

0.85

0.57

 

0.57

0.20

 

0.72

0.50

Resting Eyes Closed

               

relative theta band power (4-7 Hz)

0.23

0.04

*

0.19

0.05

0.20

0.07

0.24

0.03

*

0.19

0.05

 

0.21

0.07

relative alpha band power (7-14 Hz)

0.40

0.04

 

0.39

0.06

0.38

0.06

0.41

0.04

 

0.39

0.06

 

0.39

0.05

relative beta band power (15-30 Hz)

0.37

0.03

*

0.43

0.07

0.42

0.09

0.36

0.03

*

0.42

0.07

 

0.40

0.07

theta/beta ratio

0.64

0.13

*

0.46

0.20

0.53

0.32

0.66

0.11

*

0.47

0.20

 

0.58

0.33

Continuous Performance Task

               

relative theta band power (4-7 Hz)

0.27

0.04

 

0.23

0.05

0.20

0.05

0.27

0.04

 

0.23

0.05

 

0.20

0.05

relative alpha band power (7-14 Hz)

0.36

0.03

 

0.35

0.04

0.36

0.04

0.36

0.04

 

0.35

0.04

 

0.36

0.04

relative beta band power (15-30 Hz)

0.37

0.04

 

0.42

0.07

0.45

0.07

0.38

0.05

 

0.42

0.07

 

0.44

0.08

theta/beta ratio

0.73

0.19

 

0.56

0.20

0.46

0.17

0.73

0.18

 

0.56

0.17

 

0.48

0.20

 

Left Parietal (P3)

  

RightParietal (P4)

   

Resting Eyes Open

               

relative theta band power (4-7 Hz)

0.26

0.09

 

0.22

0.05

0.25

0.09

0.26

0.10

 

0.22

0.05

 

0.26

0.10

relative alpha band power (7-14 Hz)

0.39

0.03

 

0.41

0.05

0.39

0.06

0.38

0.02

 

0.41

0.05

 

0.39

0.06

relative beta band power (15-30 Hz)

0.35

0.08

 

0.38

0.05

0.36

0.06

0.36

0.08

 

0.37

0.05

 

0.35

0.07

theta/beta ratio

0.89

0.76

 

0.59

0.19

0.78

0.45

0.89

0.81

 

0.61

0.20

 

0.85

0.60

Resting Eyes Closed

               

relative theta band power (4-7 Hz)

0.19

0.08

 

0.18

0.05

0.20

0.06

0.21

0.04

 

0.17

0.05

 

0.21

0.06

relative alpha band power (7-14 Hz)

0.46

0.07

 

0.44

0.07

0.45

0.06

0.46

0.07

 

0.44

0.08

 

0.44

0.06

relative beta band power (15-30 Hz)

0.34

0.04

 

0.38

0.08

0.35

0.06

0.34

0.04

 

0.39

0.07

 

0.35

0.06

theta/beta ratio

0.58

0.22

 

0.48

0.21

0.60

0.27

0.61

0.10

 

0.47

0.19

 

0.62

0.30

Continuous Performance Task

               

relative theta band power (4-7 Hz)

0.26

0.05

 

0.23

0.05

0.21

0.04

0.25

0.05

 

0.23

0.05

 

0.21

0.04

relative alpha band power (7-14 Hz)

0.40

0.04

 

0.39

0.05

0.40

0.05

0.40

0.05

 

0.39

0.05

 

0.40

0.04

relative beta band power (15-30 Hz)

0.34

0.03

 

0.38

0.06

0.39

0.05

0.35

0.03

 

0.38

0.06

 

0.39

0.05

theta/beta ratio

0.77

0.22

 

0.63

0.19

0.55

0.15

0.73

0.18

 

0.64

0.20

 

0.55

0.16

  1. *Significant differences between control participants and participants with bipolar disorder. #Significant differences in participants with bipolarl disorder as a result of mindfulness based cognitive therapy (p < 0.05). ttendencies toward significant differences (p < 0.1). nControl = 10, nBipolar = 12, nBipolar MBCT = 12, MEAN ± STDEV.
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BMC Psychiatry

ISSN: 1471-244X

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