Table 2 Power spectral density changes in the Delta and the Theta band during stimulations with graded hypercapnia and NMDA. Data are expressed as % of baseline (mean ± SD). *p < 0.05, **p < 0.01.

From: NMDA attenuates the neurovascular response to hypercapnia in the neonatal cerebral cortex

Delta (%)

Cortical depth (µm)

5% CO2

10% CO2

0.1 mM NMDA

1 mM NMDA

5% CO2

10% CO2

100

140.9 ± 14.3*

58.6 ± 17.4

76.2 ± 10.2

252.1 ± 54.3**

51.2 ± 5.1

50.5 ± 12.3

200

130.4 ± 9.2*

20 ± 3.1

44.7 ± 5.1

243.6 ± 49.2**

46.0 ± 8.2

22.3 ± 2.0

300

123.9 ± 23.6*

18.7 ± 3.1

46.8 ± 4.1

187.0 ± 14.3**

45.3 ± 10.3

39.5 ± 11.3

400

127.9 ± 28.7*

46.5 ± 8.2

113.4 ± 11.3

305.0 ± 78.9**

78.5 ± 12.3

68.2 ± 23.6

500

79.8 ± 13.3

54.3 ± 8.2

92.5 ± 5.1

191.1 ± 14.3**

66.6 ± 11.3

59.6 ± 18.4

600

71.1 ± 7.2

44.1 ± 12.3

90.3 ± 7.2

197.7 ± 15.4**

60.8 ± 16.4

50.3 ± 25.6

700

38.0 ± 3.1

24.1 ± 7.2

49.9 ± 5.1

160.6 ± 11.3**

24.4 ± 2.0

34.8 ± 8.2

800

73.4 ± 14.3

60.4 ± 29.7

113.0 ± 10.2

140.9 ± 18.4*

82.1 ± 8.2

77.0 ± 5.1

900

52.1 ± 5.1

46.1 ± 10.2

67.3 ± 3.1

66.7 ± 10.2

97.9 ± 21.5

65.6 ± 13.3

1000

29.7 ± 4.1

26.6 ± 6.1

37.7 ± 1.0

54.2 ± 7.2

31.6 ± 8.2

31.0 ± 6.1

1100

83.0 ± 7.2

39.3 ± 10.2

103.8 ± 5.1

74.0 ± 19.5

61.7 ± 9.2

53.3 ± 10.2

1200

40.8 ± 6.1

31.5 ± 10.2

33.7 ± 3.1

40.7 ± 7.2

27.2 ± 4.1

52.1 ± 14.3

1300

65.7 ± 5.1

40.6 ± 8.2

56.4 ± 2.0

75.7 ± 14.3

42.3 ± 4.1

50.6 ± 7.2

1400

55.3 ± 6.1

41 ± 7.2

45.1 ± 2.0

80.8 ± 21.5

38.4 ± 3.1

65.3 ± 12.3

1500

52.7 ± 3.1

27.7 ± 2.0

60.1 ± 3.1

58.4 ± 9.2

45.8 ± 8.2

36.3 ± 8.2

1600

64.2 ± 5.1

35.2 ± 4.1

61.6 ± 7.2

84.0 ± 14.3

40.1 ± 4.1

34.5 ± 7.2

Theta (%)

100

184.4 ± 14.3**

32.1 ± 5.1

61.9 ± 3.1

59.0 ± 11.3

43.2 ± 4.1

24.7 ± 3.1

200

174.2 ± 13.3**

22.7 ± 2.0

80.5 ± 6.1

38.1 ± 9.2

42.4 ± 3.1

21.6 ± 3.1

300

163.7 ± 14.3**

19.1 ± 1.0

59.0 ± 4.1

51.3 ± 8.2

37.9 ± 3.1

31.5 ± 4.1

400

160.1 ± 18.4**

24.5 ± 3.1

76.8 ± 6.1

57.7 ± 11.3

42.2 ± 4.1

30.6 ± 4.1

500

157.5 ± 14.3**

30.3 ± 5.1

51.2 ± 3.1

42.5 ± 8.2

31.3 ± 3.1

29.1 ± 6.1

600

165.4 ± 18.4**

21.7 ± 2.0

108.9 ± 9.2

61.7 ± 11.3

42.4 ± 4.1

31.8 ± 3.1

700

105.0 ± 15.4

58.5 ± 12.3

77.7 ± 6.1

67.1 ± 11.3

41.1 ± 3.1

38.4 ± 4.1

800

105.1 ± 12.3

19.9 ± 1.0

81.2 ± 6.1

56.8 ± 10.2

49.1 ± 7.2

40.9 ± 7.2

900

114.1 ± 11.3

29.9 ± 3.1

96.9 ± 7.2

57.4 ± 9.2

65.4 ± 4.1

41.9 ± 5.1

1000

167.5 ± 11.3**

22.3 ± 2.0

91.9 ± 6.1

63.9 ± 10.2

53.1 ± 4.1

44.5 ± 8.2

1100

157.7 ± 12.3**

19.4 ± 2.0

86.7 ± 7.2

59.1 ± 9.2

55.6 ± 3.1

50.4 ± 8.2

1200

154.0 ± 12.3**

24.5 ± 2.0

100.8 ± 7.2

55.3 ± 9.2

56.9 ± 3.1

44.0 ± 7.2

1300

114.5 ± 15.4

22.3 ± 2.0

98.1 ± 6.1

54.0 ± 7.2

64.3 ± 4.1

61.9 ± 1.0

1400

109.5 ± 17.4

17.7 ± 1.0

83.9 ± 5.1

52.0 ± 7.2

59.3 ± 3.1

40.9 ± 6.1

1500

101.5 ± 16.4

19 ± 2.0

82.0 ± 6.1

45.8 ± 7.2

60.4 ± 4.1

32.4 ± 4.1

1600

104.1 ± 16.4

32.7 ± 3.1

71.3 ± 5.1

62.5 ± 7.2

56.2 ± 3.1

48.9 ± 6.1