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The Humintell Blog December 2, 2022

Do You Suffer From Facial Bias aka Face-ism? The Answer is Likely Yes.

Don’t think you’d judge a book by it’s cover? Think again. Past research has shown that adults and children regularly use faces to make judgments about the character traits of others, even with only a brief glance.

Now new research supports the idea of facial bias aka face-ism- an extreme tendency to judge people based on their c.

Look at the two faces below created by researcher Lisa DeBruine. Would you hire these people? Who looks more intelligent? Would you trust either person?

In fact the images above are composite images, with each one having been created by combining four different faces. And even though these faces aren’t real, you may still have made a snap decision about each composite person’s competence based on their facial expression and structure.

Making quick judgments about how much we should trust someone, how dominant they are likely to be, or how intelligent they are can be useful estimates of personality. But this can also, unfortunately, lead to stereotyping – for example, thinking that people with a particular physical characteristic must all be untrustworthy.

Drastic Conclusions?

Recent research from Japan suggests something more worrying; that some of us have a disposition to draw drastic conclusions about the traits and personalities of others based solely on facial appearance.

In a series of online studies with 312 participants, Scientist Atsunobu Suzuki and colleagues asked participants to  complete two rounds of surveys. The first was to assess the participants’ belief in established stereotypes, while the second was to analyze the extent to which participants made judgments on personality traits based on facial features.

They found what they call “face-based trait inferences” (FBTIs). Essentially face-based trait inferences are when subjects make a series of personality judgments having taken a brief look at someone’s face.

While everyone makes FBTIs to some degree, they discovered that some people only make extreme judgments (both positive and negative). This held even when the age, sex and ethnicity of participants were controlled for.

People with attractive faces tended to be judged as having desirable traits, like trustworthiness and competence, and more masculine-looking faces tended to be perceived as less trustworthy. Whether this tendency for facial bias was innate or learned was not determined.

Young Children Form First Impressions From Faces

Research also shows that just like adults, children as young as 3 tend to judge an individual’s character traits, such as trustworthiness and competence, simply by looking at the person’s face.

The research, led by psychological scientist Emily Cogsdill of Harvard University, shows that the predisposition to judge others based on physical features starts early in childhood and does not require years of social experience.

the researchers had 99 adults and 141 children (ages 3 to 10) evaluate pairs of computer-generated faces that differed on one of three traits: trustworthiness (i.e., mean/nice), dominance (i.e., strong/not strong), and competence (i.e., smart/not smart).

After being shown a pair of faces, participants might be asked, for example, to judge “which one of the people is very nice.”

As expected, the adults showed consensus on the traits they attributed to specific faces. And so did the children.

Children ages 3-4 were only slightly less consistent in their assessments than were 7-year-olds . But the older children’s judgments were in as much agreement as adults’, indicating a possible developmental trend.

Overall, children seemed to be most consistent in judging trustworthiness, compared to the other two traits. This suggests that children may tend to pay particular attention to the demeanor of a face – that is, whether it is broadly positive or negative.

Societal Implications

As you can imagine, having facial bias can have serious real-world implications when it comes to important decision making, like who to vote for or whether a suspect is guilty of a crime.

Research has shown that being made aware of your biases can lead to a change of mindset in the short term, but people need extra interventions periodically to make any real behavior change last.

“We believe that this finding is important because such individuals should be a prime target for intervention to reduce the biasing impact of facial appearance on interpersonal judgments and choices,” Suzuki said.

The post Do You Suffer From Facial Bias aka Face-ism? The Answer is Likely Yes. first appeared on Humintell.

Filed Under: Science

The Humintell Blog October 14, 2022

Babies Smile in Utero When Mom Eats Carrots But Frown When it’s Kale

A study led by Durham University’s Fetal and Neonatal Research Lab and published in the journal Psychological Science provides the first direct evidence that babies react to taste and smell in the womb.

The researchers took 4D ultrasound scans of 100 pregnant women to see how their unborn babies responded after being exposed to flavors from foods eaten by their mothers.

Thirty-five of the women took a capsule containing powdered carrot and 34 took a kale capsule. After 20 minutes researchers looked at each fetus using a 4D ultrasound. The mothers also did not eat or drink anything containing carrot or kale on the day of their scans to control for factors that could affect fetal reactions.

The results?

Evidence shows that facial expressions begin in utero; data shows that laughing and smiling begin in the womb as early as 24 weeks and are very prevalent by week 32.

Fetuses exposed to carrot showed more “laughter-face” responses while those exposed to kale showed more “cry-face” responses.  Their findings could further our understanding of the development of human taste and smell receptors.

Facial reactions seen in both flavor groups, compared with fetuses in a control group who were not exposed to either flavor, showed that exposure to just a small amount of carrot or kale flavor was enough to stimulate a reaction.

Babies in utero
Fig. 1. Example of cry-face gestalt of a kale-exposed fetus: (a) baseline, (b) cry-face gestalt (apex). FM11 = nasolabial furrow; FM16 = lower-lip depressor.
Fig. 2. Example of laughter-face gestalt of a carrot-exposed fetus: (a) baseline, (b) laughter-face gestalt (apex). FM6 = cheek raiser; FM12 = lip-corner puller.

The researchers also believe that what pregnant women eat might influence babies’ taste preferences after birth and potentially have implications for establishing healthy eating habits.

Humans experience flavor through a combination of taste and smell. In fetuses it is thought that this might happen through inhaling and swallowing the amniotic fluid in the womb.

Lead researcher Beyza Ustun, a postgraduate researcher in the Fetal and Neonatal Research Lab, Department of Psychology, Durham University, said:

“A number of studies have suggested that babies can taste and smell in the womb, but they are based on post-birth outcomes while our study is the first to see these reactions prior to birth. As a result, we think that this repeated exposure to flavors before birth could help to establish food preferences post-birth, which could be important when thinking about messaging around healthy eating and the potential for avoiding ‘food-fussiness’ when weaning. It was really amazing to see unborn babies’ reaction to kale or carrot flavors during the scans and share those moments with their parents.”

The researchers say their findings might also help with information given to mothers about the importance of taste and healthy diets during pregnancy. They have now begun a follow-up study with the same babies post-birth to see if the influence of flavors they experienced in the womb affects their acceptance of different foods.

Research co-author Professor Jackie Blissett, of Aston University, said: “It could be argued that repeated prenatal flavor exposures may lead to preferences for those flavors experienced postnatally. In other words, exposing the fetus to less ‘liked’ flavors, such as kale, might mean they get used to those flavors in utero.

“The next step is to examine whether fetuses show less ‘negative’ responses to these flavors over time, resulting in greater acceptance of those flavors when babies first taste them outside of the womb.”

The post Babies Smile in Utero When Mom Eats Carrots But Frown When it’s Kale first appeared on Humintell.

Filed Under: Emotion, General, Science

The Humintell Blog September 30, 2022

Adults Don’t Get Better at Recognizing Masked Faces

When you recognize a friend’s face, how do you know? Do you make a careful study of their nose and cheekbones? Are you thrown off if they don’t wear the usual expression?

The vast majority of people probably scoffed at those questions. Facial recognition usually isn’t a matter of careful study, but instead it is an instantaneous process. Your brain just knows whose face you are seeing.

However, more than two years after the start of the pandemic, a new study out of York University has found that adults still have difficulty recognizing people when their face is obscured by a mask.

Many people might have assumed their ability to recognize people’s faces despite their mask would improve over time, but not according to the latest research by scientists from York and Ben-Gurion University in Israel. The research entitled Recognition of masked faces in the era of the pandemic: No improvement, despite extensive, natural exposure was published today in the journal Psychological Science.

Researchers found repeated exposure of masked faces throughout the pandemic has made zero difference in adults’ ability to recognize these half-hidden faces.

“Neither time nor experience with masked faces changed or improved the face mask effect,” says York University Assistant Professor Erez Freud of Faculty of Health, the study’s senior author. “This tells us that the adult brain doesn’t not seem to have the ability to change how it processes faces, even when presented with masked faces over an extended period of time.”

The ongoing pandemic provided an unprecedented opportunity for the researchers to examine the plasticity of the mature face processing system.

What is Facial Recognition?

many-faces-facial-recognitionFacial recognition is a key part of understanding emotional expressions. Humans use facial recognition skills to detect deviations from normal or prototypical expressions. This process involves noticing when brows are furrowed or eyes are squinted, instantly comparing those expressions with what is expected upon seeing a face.

Because the recognition of a face is instantaneous, it is only a small cognitive step towards noticing when the face appears differently than expected, and this difference is then analyzed as displaying a certain emotion.

The ability to perceive emotions in this fashion appears to be a basic human feature. The same sort of basic human expressions, such as anger, revulsion, and sadness are found across the world, from Japan to Borneo to the United States. Even emotions displayed in ancient cave paintings show similar expressions!

The Study

The researchers repeatedly tested more than 2,000 adults by show them a series of faces, upright and inverted, with and without masks. Different groups of adults were tested at six different points in time during the pandemic. In addition, the researchers tested the same group near the start of the pandemic and 12-months later. In both the cross-sectional and longitudinal studies, adults showed absolutely no increase in their ability to recognize masked faces.

Previous research showed that adults’ facial recognition abilities decreased by about 15% when the person wore a mask using the Cambridge Face Memory Test (CFMT), which as considered as the standard to tap face recognition abilities.

Face masks also interfere with how unmasked faces are processed — which is normally made in a holistic manner, rather than by the individual parts of the face. This new study not only used the CFMT, but also the Glasgow Face Match Test, an additional measure of face perception, to determine if anything changed since the last study.

“This shows that face processing in humans, at least in adults, is rigid even after prolonged real-life exposure to partially covered faces,” says Freud.

Face sensitivity first shows up in newborns who exhibit a preference for faces or things that look similar to a face, and especially to familiar faces. In contrast to the mature face processing system, repeated exposure to faces as a child plays an important role in refining the face processing system, which continues to develop until the end of puberty.

Freud says it would be interesting to see if children’s ability to recognize masked faces changes over time with exposure, and whether the pandemic has interfered with their normal ability to recognize faces.

Read Masked Faces

Even though masks block faces, all is not lost! Use our brand new, one-of-a-kind course to regain those insights about people’s emotional states.

Masked MiX: Unmask Facial Expressions of Emotion

The post Adults Don’t Get Better at Recognizing Masked Faces first appeared on Humintell.

Filed Under: Emotion, Science

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