Table 2 Behavioral performance across the four cognitive tasks.

Cognitive Task	SI + mean ± sem	SI- mean ± sem	Effect Size, p-value
Inhibitory Control (IC)
scaled d’	0.83 ± 0.03	0.84 ± 0.03	−0.09, 0.85
Wait response time	2.24 ± 0.03	2.13 ± 0.05	0.79, 0.27
Wait consistency	0.81 ± 0.03	0.73 ± 0.04	0.68, 0.35
Interference Processing (IP)
Scaled d	0.78 ± 0.03	0.72 ± 0.03	0.32, 0.44
Response time	0.48 ± 0.02	0.50 ± 0.02	-0.18, 0.80
Consistency	0.85 ± 0.01	0.82 ± 0.02	0.32, 0.44
Working Memory (WM)
Scaled d’	0.44 ± 0.04	0.41 ± 0.03	0.12, 0.85
Response time	0.48 ± 0.03	0.44 ± 0.02	0.25, 0.61
Consistency	0.77 ± 0.01	0.72 ± 0.01	0.64, 0.09
Item span	0.63 ± 0.05	0.66 ± 0.06	−0.08, 0.85
Emotion Bias (EB)
Scaled d’	0.72 ± 0.02	0.73 ± 0.02	−0.06, 0.85
Response time	0.50 ± 0.02	0.50 ± 0.02	−.02, 0.94
Consistency	0.80 ± 0.01	0.80 ± 0.01	0.11, 0.85

Mean ± standard error of the mean (sem) data are shown for individuals with suicidal ideation (SI+, n = 38) vs. no suicidal ideation (SI-, n = 38). d’ sensitivity is scaled to 1. Response time is reported in seconds and response consistency is 1 – coefficient of variation of response time. The working memory span was tested for up to 8 items and is scaled to 1. Cohen’s d effect sizes are shown with positive values denoting higher scores in SI+ and negative values denoting higher scores in SI-. p-values represent FDR-corrected t-tests for group comparisons across all 13 variables; there were no statistically significant performance differences that survived multiple comparisons.

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