Impulsivity, gender, and the platelet serotonin transporter in healthy subjects

Figures & data

Table 1 ³H-Par binding parameters (B_max, mean ± SD, fmol/mg prot.; Kd, mean ± SD, NM) and BIS-11 total, subscale and factor scores (mean ± SD) in men and women

		Men	Women
^3H-Par binding parameters	Bmax	1135 ± 127	1137 ± 111
	Kd	0.094 ± 0.02	0.096 ± 0.03
BIS-11 total score		51.45 ± 4.94	58.76 ± 6.9*
BIS-11 subscale	Attentional	18.36 ± 2.87	20.29 ± 2.86
	Motor	17.18 ± 1.72	21.17 ± 2.89
	Nonplanning	15.9 ± 1.86	17.29 ± 3.78
BIS-11 factor	Attention	7.09 ± 1.3	7.76 ± 2.35
	Motor impulsivity	11.54 ± 2.06	14.7 ± 3.05**
	Self-control	11.18 ± 2.08	12.58 ± 3.1
	Cognitive complexity	11.27 ± 1.79	12.52 ± 1.37***
	Perseverance	5.63 ± 1.12	6.47 ± 1.12
	Cognitive instability	4.72 ± 1.27	4.7 ± 1.44

Notes:

* Significant: t = −3.034, P = 0.005;

** Significant: t = −3.004, P = 0.006;

*** Significant: t = −2.096, P = 0.046.

Figure 1 A) Positive correlation between the B_max and the cognitive complexity factor in men (Pearson correlation = 0.378, P = 0.006). B) Negative correlation between the Kd and the motor impulsivity factor in men (Pearson correlation = −0.673, P = 0.023).