9-17 - Pubertal Timing Articles McClintock Graber, Seeley,...

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Pubertal Timing Articles McClintock Graber, Seeley, Brooks-Gunn, & Lewinsohn
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McClintock ’71 Abstract Investigated the influence of social groupings on the menstrual cycle. 135 female residents of a college dormitory were studied to determine similarity in the date of menstrual onset among roommates and closest friends.
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McClintock ’71 Abstract Data show a significant increase in synchronization of onset dates, and suggest that the "significant factor in synchrony . . . is that the individuals of the group spend time together.
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McClintock ’71 Abstract Whether the mechanism underlying this phenomenon is pheromonal, mediated by awareness or some other process is a question which still remains open for speculation and investigation." Variations in menstrual cycles as a function of the time spent with males is also discussed.
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Graber, et. al. 931 24-year-old participants
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9-17 - Pubertal Timing Articles McClintock Graber, Seeley,...

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