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Table 2 Coordinates of brain regions activated in relation to spontaneous ratings of CBP

From: Lidocaine patch (5%) is no more potent than placebo in treating chronic back pain when tested in a randomised double blind placebo controlled brain imaging study

 

Brain Region

Z-VALUE

co-ordinatesx y z

 

P - values

CBP baseline activity pain task

r MPFC/gACC

5.29

12

56

22

0.001

 

(BA 9, 32)

     

CBP baseline activity

r MPFC/gACC

4.61

12

42

24

0.004

pain task>visual control

(BA 9, 32)

     

Lidocaine: CBP baseline activity

r MPFC/gACC

3.66

16

36

20

0.004

pain task

(BA 9, 32)

3.25

6

42

18

0.040

Placebo: CBP baseline activity

r MPFC/gACC

3.95

12

38

18

0.0003

pain task

(BA 9, 32)

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