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.
"As they harmonised their rhythms with those of the world around them, earliest cultural women must have felt the power in their own bodies to be intimately connected with all wider processes of cyclical renewal. It was almost as if their blood - source of all life - made the rains fall, the season change, the game animals reproduce and multiply. It would have been logical to feel this - if it really were women's sexual-political combined action which kept the social world so successfully turning in sympathy with wider ecological rhythms. When synchrony with the moon and tides was properly established, social life was successful, adaptation to nature's demands was appropriate, and therefore it seemed that the wind, the rain, the earth, the sky and all of nature was supportive of human life. In this context, we can perhaps imagine the sense of cosmic strength conveyed as women identified their own inner forces with the turning of the moon, with the success of men's hunting efforts, with their own gathering and child-bearing productivities, with the tides, seasons and other manifestations of cyclical change - and in tropical regions with the awesome force of lightning, thunder and the onset on monsoonal rains." (Knight, C. (1991) Blood Relations; Yale Univ. Press, New Haven p. 512)
"If Whole-body co-ordinated activities such as dancing can influence not only emotional but also hormonal states, this may provide a clue to why dancing takes up so much of the leisure time of so many hunting and gathering people, and why it is so often linked symbolically with the moon. It might also throw light on the mechanisms through which women eventually succeeded in preserving their ancient traditions of synchrony [menstrual] far from coastal shores in the course of the Upper Paleolithic revolution. It could be that they danced. Moreover, if dancing influenced the timing of ovulation and/or menstruation as well as of sexual intercourse itself, a further consequence may have followed. By scheduling each type of dance so as to coincide with a specific lunar phase, women could have helped ensure that their cycles were not only socially in step, but also in step with the moon. Alternatively, it may have been that by using the moon as a clock, and by dancing in time with it, women succeeded in keeping in synchrony with one another." (Knight, C. (1991) Blood Relations; Yale Univ. Press, New Haven pp. 350-1)