BBC NEWS | Health | 'Bad' women drivers: hormone link

BBC NEWS | Health | 'Bad' women drivers: hormone link

What is an outlier - 3 SD here

Oxford Brookes University

Entrez PubMedVariations in memory function and sex steroid hormones across the menstrual cycle.

Entrez PubMed: "Psychoneuroendocrinology. 1992 Oct;17(5):497-506.Related Articles, Links


Variations in memory function and sex steroid hormones across the menstrual cycle.

Phillips SM, Sherwin BB.

Department of Psychology, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec, Canada.

Memory, mood, and hormone levels were measured in 25 women during the menstrual and luteal phases of their cycles. Significantly lower visual memory (delayed recall) scores were found during the menstrual phase compared to the luteal phase. No phase differences were found on mood measures or on other memory measures including digit span, paired-associate learning, immediate recall of visual material, and immediate or delayed paragraph recall. The visual memory decrease was most prominent in approximately one-half of the sample and was significantly correlated with plasma progesterone in the luteal phase. For all subjects, paragraph recall scores were negatively correlated with free testosterone levels, whereas paired-associate learning was positively correlated with estradiol levels in the luteal phase. These results suggest that changes in memory test performance may be associated with sex steroid levels, particularly in some subgroups of women."

Entrez PubMed

Entrez PubMed: "Psychoneuroendocrinology. 1992 Oct;17(5):497-506.Related Articles, Links


Variations in memory function and sex steroid hormones across the menstrual cycle.

Phillips SM, Sherwin BB.

Department of Psychology, McGill University, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec, Canada.

Memory, mood, and hormone levels were measured in 25 women during the menstrual and luteal phases of their cycles. Significantly lower visual memory (delayed recall) scores were found during the menstrual phase compared to the luteal phase. No phase differences were found on mood measures or on other memory measures including digit span, paired-associate learning, immediate recall of visual material, and immediate or delayed paragraph recall. The visual memory decrease was most prominent in approximately one-half of the sample and was significantly correlated with plasma progesterone in the luteal phase. For all subjects, paragraph recall scores were negatively correlated with free testosterone levels, whereas paired-associate learning was positively correlated with estradiol levels in the luteal phase. These results suggest that changes in memory test performance may be associated with sex steroid levels, particularly in some subgroups of women."

The relationship between testosterone levels and cognitive ability patterns.

Entrez PubMed

1: Psychoneuroendocrinology. 1991;16(4):323-34. Related Articles, Links


The relationship between testosterone levels and cognitive ability patterns.

Gouchie C, Kimura D.

Department of Psychology, University of Western Ontario, London, Canada.

The cognitive performance of normal men and women was studied, grouped according to whether the subjects had relatively high or low salivary testosterone (T) concentrations. Men with lower T performed better than other groups on measures of spatial/mathematical ability, tasks at which men normally excel. Women with high T scored higher than low-T women on these same measures. T concentrations did not relate significantly to scores on tests that usually favor women or that do not typically show a sex difference. These results support suggestions of a nonlinear relationship between T concentrations and spatial ability, and demonstrate some task specificity in this respect.

Testosterone levels and spatial ability in men.

Entrez PubMed

Psychoneuroendocrinology. 1999 Nov;24(8):813-22. Related Articles, Links


Testosterone levels and spatial ability in men.

Silverman I, Kastuk D, Choi J, Phillips K.

Department of Psychology, York University, Toronto, Ont., Canada. isilv@yorku.ca

Testosterone (T) levels were measured by salivary assays in 59 males at times of the day when T was expected to be highest and lowest. Relationships were evaluated for mean hormone levels across the two sessions and hormone level changes between sessions with performance on three-dimensional mental rotations, a spatial test which customarily favours males. An anagrams task and the digit symbol test were used as controls. Mental rotations scores showed a significant positive relationship with mean T levels but not with changes in T. There were no significant relationships between control test scores and mean T levels. Findings are discussed in terms of their contributions to the resolution of ambiguities in prior reported data

Menstrual and Gender

Entrez PubMed

Menstrual cycle variation in spatial ability: relation to salivary cortisol levels.

McCormick CM, Teillon SM.

Neuroscience Program, Bates College, Lewiston, Maine 04240, USA.

This study examined whether menstrual cycle phase was associated with performance on the Primary Mental Abilities Test of Spatial Relations, a test of mental rotation, in undergraduate students (N = 82). As cortisol levels also vary across the menstrual cycle under conditions of stress and influence cognitive performance, saliva samples were obtained before and after the test session to examine whether cortisol levels were related to between- and within-group differences in spatial performance. Men scored higher on the spatial test than all the groups of women, although the difference between men and women in the menstrual phase was not significant. Women in the luteal phase scored lower than the menstrual, follicular, and oral contraceptive user groups of women. There were no sex or menstrual cycle differences in cortisol levels, and no association between cortisol levels and spatial performance. The poorer performance of women in the luteal phase was not related to differences in ratings of perceived stress, perceived success on the test, or mood. Although menstrual cycle phase accounted for a significant proportion of the variance (15%) in performance on the spatial test, this does not explain why men outperformed women regardless of the phase of the cycle. Thus, there are clearly several other variables, sociocultural and physiological, involved in mediating individual differences in spatial performance. Copyright 2001 Academic Press.

Menstrual Cycle and spacial

Entrez PubMed

Single Testosterone improves VS in women - no fingers

Entrez PubMed

Tourettes - not finger, but has it been done?

Entrez PubMed

Fingers Twins Lesbians

Entrez PubMed

fingers spatial 2005!

Entrez PubMed

androgen and spatial ability

Entrez PubMed

Amnio data and fingers

Entrez PubMed

Skiing

Entrez PubMed

Handedness and Ethnic

Entrez PubMed

Ethnic issues

Entrez PubMed

Entrez PubMed

Entrez PubMed

Prediction Elipse

Prediction Elipse

Test

Here we go here.