The new research showed that shifts in women's cycles did not affect their preferences for men's behaviour. Rather, women seem to perceive or evaluate every man as slightly more attractive when fertile compared to other cycle phases. The results were published in Psychological Science According to the good genes ovulatory shift hypothesis (known as GGOSH), women's preferences for certain behaviours, presumed to indicate men's genetic fitness, should differ according to their fertility. First author Dr Julia Stern from the University of Göttingen's Institute of Psychology said, "There is a lot of research on women's mate preferences, so at first we were surprised that we didn't see the same effects. However, research at the University of Göttingen using the largest sample size to date questions these results.In In the past, there has been much excitement over research that purported to show a link between changes in a woman's cycle and how attracted she was to men behaving in different ways. They found there was no evidence that a woman's mate preference changes across the ovulatory cycle. The researchers found, however, that when fertile, women found all men slightly more attractive and, irrespective of their hormone cycle, flirtier men were evaluated as being more attractive for sexual relationships but less attractive for long-term relationships. The participants watched videos showing a man getting to know a woman who was out of shot. To test this, the researchers studied 157 female participants who met strict criteria - including being 18 to 35 years old, heterosexual and having a natural, regular cycle. The participants were asked to focus on the way the men behaved.
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