Table 3.

Descriptive of measures.

	OCD			HD			PTSD

	Dx	GPC	p	Dx	GPC	p	Dx	VCC	p
Clinical measures	N = 27			N = 18			N = 28	N = 28
Symptom Severity^a	25.6 ± 1.0	-	-	53.3 ± 3.3	-	-	62.5 ± 4.1	6.9 ± 2.1	< 0.001

Severity of depression	N = 27			N = 18			N = 28	N = 28
Minimal (BDI:0–13)	17	-	-	13	-	-	6	25	-
Mild (BDI: 14–19)	8	-	-	2	-	-	4	0	-
Moderate (BDI: 20–28)	1	-	-	2	-	-	9	3	-
Severe (BDI: 29–63)	1	-	-	1	-	-	9	0	-

Anhedonia (aBDI)	1.4 ± 0.3	-	-	1.8 ± 0.5	-	-	3.7 ± 0.5	0.8 ± 0.2	< 0.001
Global Depression (gBDI)	9.2 ± 1.4	-	-	8.8 ± 1.7	-	-	19.6 ± 1.7	4.5 ± 1.2	< 0.001

Self-Report measures	N = 23	N = 29		N = 16	N = 26		N = 28	N = 27
Did not complete	N = 4	0		2	0		0	0
Risk Perception (RiskP)	24.1 ± 0.9	22.1 ± 0.7	0.04	27.1 ± 0.7	23.3 ± 0.9	0.004	22.5 ± 1.0	21.9 ± 0.8	0.65
Risk Taking (RiskT)	14.3 ± 1.0	16.0 ± 0.7	0.36	12.6 ± 0.8	14.6 ± 0.8	0.08	19.7 ± 0.8	16.9 ± 0.7	0.01

Behavior Based measures	N = 25	N = 29		N = 18	N = 26		N = 28	N = 28
Did not complete	N = 2	N = 0		N = 0	N = 0		N = 0	N = 0
Outliers with highly random choices^b	N = 1	N = 0		N = 1	N = 0		N=1	N = 2
Risk-aversion (RiskB)	0.24 ± 0.03	0.18 ± 0.03	0.12	0.23 ± 0.03	0.27 ± 0.03	0.37	0.29 ± 0.04	0.28 ± 0.03	0.77
Response time, msec, log-transformed (RT)	7.8 ± 0.1	7.8 ± 0.1	0.77	8.0 ± 0.1	7.6 ± 0.04	< 0.001	7.7 ± 0.1	7.7 ± 0.1	0.95
Inverse temperature (γ)^c	−2.2 ± 0.24	−1.7 ± 0.25	0.21	−2.2 ± 0.29	−2.3 ± 0.20	0.79	−2.7 ± 0.33	−2.3 ± 0.23	0.38

Note: OCD – individuals with Obsessive Compulsive Disorder; HD – individuals with Hoarding disorder; PTSD – combat veterans with post-traumatic stress disorder; Dx – individuals from a corresponding clinical group; GPC – Controls from general population; VCC – controls combat veterans.

Bold indicates effects significant at p = 0.05 level.

Severity of OCD was measured by YBOCS (N = 27), severity of HD was measured by SIR (N = 15), and severity of PTSD was measured by CAPS.

Extreme outliers with inverse temperature greater than 3 SD above the subsample means; excluded from analyses that involved inverse temperature parameter.

Extreme outliers were excluded.