Table 3.

Descriptive statistics of the mood state measures as well as task performance group comparison following drug/placebo ingestion

Variable	Placebo			Yohimbine			t	df	p	Cohen’s d	95% confidence interval
	N	Mean	SD	N	Mean	SD					Lower	Upper
State questionnaires
DEQ
Feel	20	27.9	26.49	21	28.19	28.79	− 0.03	39	0.973	− 0.01	− 17.79	17.21
High	20	20.15	22.76	21	15.43	24.3	0.64	39	0.525	0.2	− 10.17	19.61
Dislike	20	21.85	27.46	21	22.29	24.01	− 0.05	39	0.957	− 0.02	− 16.71	15.84
Like	20	34.6	21.23	21	39.52	27.37	− 0.64	39	0.525	− 0.2	− 20.45	10.6
Want more	20	27.85	22.1	21	21.81	24.69	0.82	39	0.415	0.26	− 8.79	20.87
Perceived arousal	20	69.65	21.19	21	79.62	17.88	− 1.63	39	0.111	− 0.51	− 22.33	2.39
PANAS
PA post	20	21.3	8.42	21	26.29	9.72	− 1.75	39	0.088	− 0.55	− 10.74	0.77
NA post	20	10.85	1.27	21	13.48	4.14	− 2.72	39	0.010	− 0.85	− 4.58	− 0.67
Task performance
IST
FW P (correct)	21	0.8	0.09	21	0.81	0.12	− 0.29	40	0.773	− 0.09	− 0.07	0.05
RC P (correct)	21	0.73	0.06	21	0.72	0.1	0.6	40	0.552	0.19	− 0.04	0.07
MCQ
Proportion LDR	19	0.43	0.16	21	0.49	0.22	− 1.02	38	0.315	− 0.32	− 0.19	0.06
PD
ln h	21	2.83	3.79	21	2.21	1.64	0.68	40	0.499	0.21	− 1.21	2.44
ASST
SSRT neutral	19	293.47	58.79	19	280.34	41.52
SSRT fearful	19	313.94	67.96	19	279.9	38.15