Table 2.

Estimated marginal means (M) and standard errors (SE) of the reaction times, mood ratings and accuracy for all levels of difficulty and reinforcement conditions of the rewarded spatial delayed recall task.

Difficulty	Reinforced						Non-reinforced
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
	M	SE	M	SE	M	SE	M	SE	M	SE	M	SE
Reaction Time (ms)
Non-Trauma Controls	1249.4	59.4	1331.4	59.2	1396.0	59.4	1288.1	59.4	1483.0	59.5	1436.4	59.6
Trauma Controls	1460.8	63.6	1495.4	63.3	1563.2	63.5	1466.2	63.5	1521.4	63.6	1692.3	63.8
Remitted PTSD	1309.5	66.0	1343.0	65.9	1419.1	65.6	1305.3	65.8	1424.3	66.0	1429.8	65.9
Mood Ratings (0: bad mood, 100: good mood)
Non-Trauma Controls	79.1	5.3	80.0	5.3	77.3	5.3	72.2	5.3	68.7	5.3	65.8	5.3
Trauma Controls	83.1	5.6	73.5	5.6	78.8	5.6	74.9	5.6	73.5	5.6	71.9	5.6
Remitted PTSD	74.2	5.9	71.5	5.8	74.1	5.8	73.5	5.8	70.9	5.8	73.7	5.9
Accuracy (% correct responses)
Non-Trauma Controls	79.2	3.6	72.4	3.6	60.9	3.6	84.9	3.6	71.9	3.6	65.6	3.6
Trauma Controls	75.6	3.9	58.3	3.9	54.8	3.9	75.6	3.9	63.1	3.9	51.2	3.9
Remitted PTSD	73.7	4.0	66.0	4.0	55.8	4.0	76.9	4.0	70.5	4.0	57.1	4.0
Skin conductance responses (μSiemens)
Non-trauma controls	1.36	0.32	1.42	0.32	1.10	0.32	0.90	0.32	1.36	0.32	0.99	0.32
Trauma controls	0.95	0.38	0.89	0.38	1.10	0.38	0.87	0.38	1.50	0.38	1.02	0.38
Remitted PTSD	0.94	0.37	0.65	0.37	1.77	0.37	0.91	0.37	1.73	0.37	1.26	0.37

PTSD, post-traumatic stress disorder.

The current mood was rated using a 100 mm visual analogue scale (0: bad mood, 100: good mood).

Levels of difficulty correspond to the number of circles to be remembered: level 1: 3 circles, level 2: 5 circles, and level 3: 7 circles. Accuracy is given in percent of correct responses.