Background
Methods
Variable | PTSD Mean (SD) | TENP Mean (SD) | Significance |
---|---|---|---|
Age | 29.88 (7.8) | 27.06 (6.0) | p=0.235 |
Education | 14.94 (2.4) | 16.11 (2.1) | p=0.129 |
BMI | 25.44 (4.6) | 23.43 (3.4) | p=0.150 |
Current CAPS* | 60.31 (15.1) | 1.89 (3.1) | p<0.001 |
BDI* | 13.12 (10.6) | 1.27 (1.4) | p<0.001 |
BAI* | 15.00 (9.5) | 2.11 (3.6) | p<0.001 |
Stimuli and procedures
Image acquisition
Data analysis
Behavioral analyses
FMRI analyses
Voxelwise whole brain correlations
Findings
PTSD (n=17) | TENP (n=18) | Mixed-Model ANOVAa | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Congruent | Incongruent | Congruent | Incongruent | Group | Condition | Group x Condition | ||||||||
M | SD | M | SD | M | SD | M | SD | F |
p
| F |
p
| F |
p
| |
RT (ms) | 762 | 76 | 805 | 86 | 804 | 106 | 847 | 111 | 1.69 | .20 | 102.7 | <.001 | .016 | .89 |
ER (%) | .76 | .74 | 2.87 | 2.36 | .91 | 1.12 | 2.26 | 2.66 | .201 | .65 | 21.20 | <.001 | 1.01 | .32 |
Activation in PTSD group | Activation in TENP group | ||||
---|---|---|---|---|---|
Region
|
MNI (x,y,z)
|
z Score
|
Region
|
MNI (x,y,z)
|
z Score
|
rACC | 6, 32, 36 | 2.97 (ns) | rACC | 16, 36, 34 | 4.48 |
dACC | 12, 4, 42 | 3.40 | −4, 34, 42 | 3.27 | |
16, 46, 2 | 3.23 | ||||
−10, 42, 32 | 3.10 | ||||
dACC | −12, 4, 44 | 3.96 | |||
−14, 20, 32 | 3.33 |
Activation greater in PTSD group | Activation greater in TENP group | ||||
---|---|---|---|---|---|
Region
|
MNI (x,y,z)
|
z Score
|
Region
|
MNI (x,y,z)
|
z Score
|
- | - | - | rACC | 18, 32, 32 | 3.57 |