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Table 2 Number and percentage of responsive and non-responsive neurons in each recording area before and after morphine or NS administration

From: Morphine modulation of pain processing in medial and lateral pain pathways

   

Pre

Post

Treatment

Brain areas

n

Responsive

Non-responsive

Responsive

Non-responsive

Morphine

SI

62

51 (82%)

11

41 (66%)*

21

 

VPL

53

50 (94%)

3

30 (57%)***

23

 

ACC

42

21 (50%)

21

10 (24%)*

32

 

MD

61

31 (51%)

30

11 (18%)***

50

NS

SI

69

57 (83%)

12

55 (80%)

14

 

VPL

51

44 (86%)

7

47 (92%)

4

 

ACC

42

22 (52%)

20

19 (45%)

23

 

MD

58

28 (48%)

30

26 (45%)

32

  1. * P < 0.05, *** P < 0.001, Chi-square test, compared with pre-treatment.