Research on animal and human populations has suggested elevated spatial abilities as well as higher incidence of left-handedness in genetic females exposed to abnormally high androgen levels perinatally. However, findings in humans are inconsistent. We administered the Mental Rotations Test (Vandenberg and Kuse, 1978) and the Edinburgh Handedness Inventory (Oldfield, 1971) to adult females (N=23 and 26, respectively) aged 19-52 years who had been exposed to elevated androgen levels early in life due to congenital adrenal hyperplasia. No significant differences from a control group pair-wise matched on gender, age and school education were identified on either test. However, non-significant tendencies in the predicted direction on both inventories could be related to higher prenatal androgen levels in probands. Further analyses will reveal the relevance of this hypothesis in the present sample.
Perspectives on Memory and Cognition. University of Aarhus, Department of Psychology, 2006