To further our understanding of cognitive sex differences, we studied the relationship between menstrual phase (via serum estradiol and progesterone levels) and cognitive abilities and cognitive… (More)
The relationship between serum total testosterone (T) level and fluid intelligence (Cattell's Culture Fair Intelligence Test) was studied in young men and women. There was no significant difference… (More)
This paper deals with the local optimization of the periodic or aperiodic ambiguity function of a complex sequence by using a gradient method on the phases. It is shown that efficient equations are… (More)
According to the Geschwind-Behan-Galaburda (GBG) hypothesis, prenatal testosterone (T) causes a slowing in the development of the left brain with a consequent compensatory growth in the right brain,… (More)
The relationships among nonverbal intelligence, hand speed, and serum testosterone level were studied in male left-handers ranging in age from 17 to 19 years. Hand speed was measured by a peg moving… (More)
Serum testosterone levels were determined in female and male subjects. Hand preference was assessed by the Edinburgh Handedness Inventory. Subjects with anomalous dominance (left-handers,… (More)
The relationship between serum total testosterone (T) concentration and fluid intelligence (nonverbal, spatial) was studied in consistently right-handed men with successful (S) or unsuccessful… (More)
The contribution of right- and left-hand skills to left-handedness was studied in 42 left-handed male subjects. Hand preference was assessed by the Edinburgh Handedness Inventory. Hand skill was… (More)
It was confirmed that there is a direct relationship between serum testosterone level and nonverbal intelligence (Cattel's Culture Fair Intelligence Test) only in right-handed male subjects without… (More)
Relations of sex hormones to the degree of right-hand preference was studied in right-handed male and female adult subjects. Hand preference was assessed by the Edinburgh and Waterloo Handedness… (More)