Digit ratio (2D:4D), impulsiveness and aggression in male heroin addicts: A prospective controlled study
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DOI: 10.1016/j.paid.2017.05.031
Abstract: Abstract The ratio of the length of the index finger to ring finger (2D:4D) is considered to be an indicator of prenatal testosterone exposure. The androgen theory suggests that the masculinizing effects of fetal androgens… read more here.
Keywords: ratio impulsiveness; male heroin; aggression; impulsiveness aggression ... See more keywords