Table 1.

Clinical, neurophysiological, and demographic characteristics for diagnostic groups: Values reflect the mean and standard deviations are in parentheses

	SAD (n = 55)	MDD (n = 54)
Liebowitz Social Anxiety Score	82.76 (17.72)	37.02 (18.13)
Hamilton Depression Rating Score	8.64 (4.34)	14.21 (4.83)
IDAS-II Suicidality Subscale	7.54 (2.50)	8.05 (2.58)
TEPS-A	4.22 (.69)	3.94 (.84)
TEPS-C	4.51 (.69)	4.40 (.79)
ΔRewP at FCz (gain-loss)	4.01 (4.35)	3.71 (4.97)
Residualized RewP at FCz for gain	.09 (4.34)	−.10 (4.93)
Residualized FN at FCz for loss	−.35 (3.63)	.36 (4.29)
Age	25.00 (6.57)	30.81 (10.62)
Gender (%)	%	%
Female	65.5	70.4
Male	32.7	29.6
Not Reported	1.8	0.0
Ethnicity (% Hispanic/Latinx)	27.3	29.6
Racial Identity (%)	%	%
White	41.8	50.0
Black	18.2	7.4
Asian	23.6	14.8
Native American or Alaskan Native	1.8	0.0
Multi-Racial/Another Identity	10.9	26.0
Not Reported	3.6	1.9
Comorbid Diagnoses (%)	%	%
Generalized anxiety disorder	41.8	38.9
Insomnia	23.6	37.0
Hypersomnolence	12.7	14.8
Specific Phobia	9.1	5.6
Persistent Depressive Disorder	0.0	35.2
Panic Disorder	7.3	0.0
Posttraumatic Stress Disorder	1.8	5.6
Attention-Deficit/Hyperactivity Disorder	3.6	1.9
Adjustment Disorder	3.6	0.0
Alcohol Use Disorder (mild)	0.0	1.9
Binge Eating Disorder	1.8	0.0

Note. SAD=Social Anxiety Disorder; MDD=Major Depressive Disorder;

IDAS-II=Inventory of Depression and Anxiety Symptoms – Second Version; TEPS-A=Temporal Experience of Pleasure Scale, anticipatory pleasure score; TEPS-C=Temporal Experience of Pleasure Scale, consummatory pleasure score; FCz=frontocentral event-related potential component based on difference score; residualized RewP at FCz for gain (partialing out effect of loss); residualized FN at FCz for loss (partialing out effect of gain)