A study on the ability of the brain to easily distinguish faces that belong to the same race

This hypoactivity in the fusiform face area has been found in several studies.

Race and intelligence

Happy faces followed by angry vocal tones produce more changes than the other incongruous pairing, while there was no such difference between happy and angry congruous pairings, with the greater reaction implying that infants held greater expectations of a happy vocal tone after seeing a happy face than an angry tone following an angry face.

The processing of faces in the brain is known as a "sum of parts" perception. The face inversion effect provides behavioral support of a specialized mechanism as people tend to have greater deficits in task performance when prompted to react to an inverted face than to an inverted object.

During the perception of faces, major activations occur in the extrastriate areas bilaterally, particularly in the fusiform face area, the occipital face area OFAand the superior temporal sulcus fSTS.

In the first of these studiesHeather Lucas and her colleagues of the Cognitive Neuroscience Laboratory at Northwestern University recruited 18 white female undergraduates and showed them colour photographs of the faces of white, black, Hispanic and east and south Asian adult men, presented in random order on a computer screen.

For example, you might note that a face reminds you of someone you know, that its expression appears friendly or shy, or it looks like the face of a scientist or police officer. In most conceptions of g it is considered to be fairly fixed in a given individual and unresponsive to training or other environmental influences.

During the perception of faces, major activations occur in the extrastriate areas bilaterally, particularly in the fusiform face area, the occipital face area OFAand the superior temporal sulcus fSTS.

As a result, smaller N brain potentials for other-race faces -- particularly those that were not remembered later -- could indicate that race-specifying features of these faces were given more attention. Neuro-imaging studies such as PET and fMRI studies have shown support for a specialized facial processing mechanism as they have identified regions of the fusiform gyrus that have higher activation during face perception tasks than other visual perception tasks.

One of the most widely accepted theories of face perception argues that understanding faces involves several stages: It may be suggested that each stimulus was mapped by category into face or non-face, and by process into holistic or analytic.

Many current models of the cross-race effect assume that holistic face processing mechanisms are more fully engaged when viewing own-race faces compared to other-race faces.

The heritability of a trait describes the proportion of variation in the trait that is attributable to genetic factors within a particular population.

How We Save Face—Researchers Crack the Brain's Facial-Recognition Code

This is supported by fMRI activation and studies on prosopagnosia, which involves lesions in the fusiform face area. Subjects were also impacted by the coding of the relationships between those features. The activity found by Gauthier when participants viewed non-face objects was not as strong as when participants were viewing faces, however this could be because we have much more expertise for faces than for most other objects.

Face perception

Today, test bias in the sense that some test items systematically give White test takers an unfair advantage because of the way the test has been elaborated is no longer considered a likely cause of the test score gap.

Stay tuned in coming months for an article by Tsao on face recognition in Scientific American. In his review of the historical trends, Huntp. Of course, not all same-race faces were successfully recognized, the researchers say. The researchers therefore suggest that the other-race effect may occur because the brain encodes other-race faces primarily according to the racial group they belong to, rather than by distinguishing features.

Like factory workers, the various face patches had distinct jobs, cooperating, communicating and building on one another to provide a complete picture. This suggests that facial recognition abilities are not only heritable, but that their genetic basis is independent from the bases of other cognitive abilities and are specialized for face perception.

'Other-race effect': Clues to why 'they' all look alike

At seven months, the object of an observed face's apparent emotional reaction is relevant in processing the face. Recent breakthroughs using noninvasive functional transcranial Doppler spectroscopy as demonstrated by Njemanze,to locate specific responses to facial stimuli have led to improved systems for facial recognition.

There is a link between aggression and emotion perception difficulties for people with this dual diagnosis. Faces can tell things such as identity, mood, age, sex, race, and the direction that someone is looking. Training three-month-old infants to reach for objects with Velcro -covered "sticky mitts" increases the amount of attention that they pay to faces as compared to passively moving objects through their hands and non-trained control groups.

Why do people of other races all look alike?

Robert Plomin is confident that QTLs responsible for the variation in IQ scores exist, but due to their small effect sizes, more powerful tools of analysis will be required to detect them. The findings, which were published recently in Cell, provide scientists with a comprehensive, systematic model for how the brain perceives faces.

Self-face perception[ edit ] Studies regarding face perception have also looked specifically at self-face perception. Thus, to the uninitiated American all Asiatics look alike, while to the Asiatics, all White men look alike. For instance McCarthy has shown that the right fusiform gyrus is more important for facial processing in complex situations.

At the same time white mothers are twice as likely to breastfeed their infants, and breastfeeding is highly correlated with IQ for low birthweight infants. According to psychologist David Rowe, self-report is the preferred method for racial classification in studies of racial differences because classification based on genetic markers alone ignore the "cultural, behavioral, sociological, psychological, and epidemiological variables" that distinguish racial groups.

Face perception

They stated that the black-white IQ difference is about 15 to 18 points or 1 to 1. Specifically, while newborns show a preference for faces, this behavior is reduced between one- to four months of age.

Templeton argues that the question about the possible genetic effects on the test score gap is muddled by the general focus on "race" rather than on populations defined by gene frequency or by geographical proximity, and by the general insistence on phrasing the question in terms of heritability.During face perception, neural networks make connections with the brain to recall memories.

According to the Seminal Model of face perception, there are three stages of face processing including recognition of the face, the recall of memories and information that are linked with that face, and finally name recall.

The brain has evolved to recognize and remember many different faces. We can instantly identify a friend’s countenance among dozens in a crowded restaurant or on a busy street. How the Brain Recognizes Faces by Viatcheslav Wlassoff, PhD | October 17, Face perception has played a central role for social interaction for millions of years, informing us about the identity, age, gender, mood, attractiveness, race and friendliness of a person.

Both studies illustrate the same pattern, namely that because primates tend to be most familiar with faces of their own species, they learn to distinguish those types of faces but not others, said. Brain (lateralization / plasticity) refers to specialization of the two cortical hemispheres. In a brain that is highly (lateralized / plastic), many areas are not yet committed.

Both studies illustrate the same pattern, namely that because primates tend to be most familiar with faces of their own species, they learn to distinguish those types of faces but not others, said.

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A study on the ability of the brain to easily distinguish faces that belong to the same race
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