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Table 2 Bivariate correlations: Hippocampal asymmetry v P300 amplitude

From: The relationship between Hippocampal asymmetry and working memory processing in combat-related PTSD – a monozygotic twin study

 

Pearson correlation

Sig. (2-tailed)

 

Asymmetry magnitude

 

1: PTSD/Exposed Group N = 12

Pz P300

0.69

0.01**

P3 P300

0.64

0.03**

P4 P300

0.33

0.29

2: Non-PTSD/Non-Exposed Group (co-twins of Group 1) N = 12

Pz P300

−0.13

0.70

P3 P300

0.34

0.28

P4 P300

0.41

0.18

3: Non-PTSD/Exposed Group N = 23

Pz P300

0.12

0.63

P3 P300

0.00

0.98

P4 P300

−0.10

0.67

4: Non-PTSD/Non-Exposed Group (co-twins of Group 3) N = 23

Pz P300

−0.21

0.37

P3 P300

0.01

0.97

P4 P300

0.02

0.95

**p ≤ .025