Human evolution theory utilizing concepts of neoteny & female sexual selection
An etiology of neuropsychological disorders such as autism and dyslexia, and the origin of left handedness.

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M. Hassler

Creative musical behavior and sex hormones: musical talent and spatial ability in the two sexes: bibliographical excerpts


"Creative musical behavior, musical intelligence, and spatial ability were investigated in relation to salivary testosterone (T). In a cross-sectional study with 117 adults and in an 8-yr longitudinal study with 120 adolescents, composers, instrumentalists, and nonmusicians of both sexes were compared by analyses of variance. Results indicate that an optimal T range may exist for the expression of creative musical behavior. This range may be at the bottom of normal male T range and at the top of normal female T range. In addition, musicians were found to attain significantly higher spatial test scores than nonmusicians, both, in an 8-yr-period of adolescent development and in adulthood." (Hassler, M. (1992) Creative musical behavior and sex hormones: musical talent and spatial ability in the two sexes. Psychoneuroendocrinology 17 (1): pp. 55)

"There is evidence that musicians are androgynous persons (Kemp, 1982; 1985; Hassler et al., 1985; Hassler & Nieschlag, 1989). Due to the relationship between spatial and musical capacities, sex hormones, particularly T as the pre-hormone for its biologically active metabolites, may contribute to the development of both musical talent and spacial ability." (Hassler, M. (1992) Creative musical behavior and sex hormones: musical talent and spatial ability in the two sexes. Psychoneuroendocrinology 17 (1): pp. 56)

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