Why you don’t really have a type?审美会一直变化，所以你一直没有“喜欢的类型”？ 时间:2018-10-24 单词数:7530
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Before the beard trend, I preferred the look of a clean-shaven man. Then beards went mainstream. Now, after seeing countless men donning this look, I find myself giving five o’clock shadows a second glance. Apparently, I’m not alone.
“I find men with beards more attractive. Before it was not important, but now half of the men I know have beards,” one survey respondent told The Guardian when asked about facial hair.
It’s often thought that we are hardwired by millennia of natural selection to gravitate towards certain traits, like facial symmetry. We know our standards of beauty change over time – but those shifts have been thought to be relatively long-term, responding to the media and popular culture. And even if we know that our sense of beauty still differs somewhat from person to person, most of us believe that we each have a certain ‘type’ that stays somewhat constant throughout our lifetime.
But it turns out ‘over time’ is a shorter window than it once was. Our standards of beauty don’t just change over months or years. They can change in an instant.
“Beauty still is in the eye of the beholder, but our on-going work suggests that the beholder may be changing constantly,” says Haiyang Yang, assistant professor at the Johns Hopkins University Carey Business School and author of a study that found that our sense of beauty can change based on other people’s opinions. “It can be argued that the advent of the internet age may be causing people to change their beauty standards faster than ever before in human history.”
You can blame how much we’re bombarded today with images of other people – as well as, yes, internet dating.
Recent research has found that our judgments of attractiveness not only change, but that we actually see the next face as more or less attractive, based on faces we have just seen. With a dating site or app, of course, this happens repeatedly and in mere milliseconds.
In one study at the University of Sydney, female participants rated 60 men as ‘attractive’ or ‘not attractive’ after pictures of their faces flashed on a screen for about one-third of a second. Researchers found that participants were more likely to rate a face as attractive if they thought the preceding face was attractive. (This went the other way, too: they were also more likely to rate a face as unattractive if they thought the preceding face was unattractive.) When participants viewed 242 female faces and were asked to rate their attractiveness on a scale of one to eight, they viewed people as more or less beautiful based on their previous responses – so much so that their perception of beauty changed with each new face.
The reason comes down to how the brain handles new information. “Your brain can’t process all the information that’s continuously flooding into your visual system from your eyes, so it creates shortcuts where it can,” says Jessica Taubert, lead author of the study at the University of Sydney, where she is a postdoctoral researcher. “Your brain relies on previous visual cues so it doesn’t have to constantly reanalyse that information.”
In this case, the shortcut used is what scientists refer to as ‘serial dependence’: we expect the physical state of an object to remain stable from one moment to the next. For example, when you glance at a coffee mug and look away, you expect its identity to be the same when you look at it again.
A similar concept applies in online dating. As millions of lovebirds scour digital profiles, their brains assume while they are fixated on a face that its identity will remain the same – attractive or not attractive. They quickly swipe to the next profile and are presented with what could be best described as an illusion. Their brains haven’t had time to reanalyse the information as a new face belonging to a new person, so they perceive the next face as they perceived the last.
“The fact that our brains quickly adapt to our visual environment is not new. What is new is the speed at which our environment can change,” says Teresa Pegors, a former assistant professor of psychology at Azusa Pacific University and co-author of the study.
“This can make beauty a constantly shifting target and is one piece, though certainly not the only or even most important piece, in the equation of why it is harder to be content with a single partner over the long haul.”
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