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The Humintell Blog March 26, 2012

Prosopagnosia (Face Blindness)

Most of us recognize people we know by looking at their faces.  It seems to be an automatic inherent brain function.

But what if you couldn’t delineate between people based on their faces?  There are some people who simply cannot distinguish between faces even those of loved ones such as a husband, wife, son or daughter.

Lesley Stahl and 60 Minutes reports on “face blindness”,  a neurological disorder where people cannot recognize faces.  In a few extreme cases face blind people can’t even recognize their own face.  There seems to be varying degrees to this disorder, whose scientific term is prosopagnosia, but the effects can be devastating for all sufferers.

Imagine a world where your children and even your spouse look like strangers.  It is hard to imagine yet normal functioning brains, like most of us have, encounter a similar problem recognizing faces including those of loved ones if pictures showing only the faces (not hair) are turned upside down.  This begs the question why is there this similarity and what part of the brain is responsible for facial recognition.

Science has not been able to concretely say what areas of the brain are exclusively dedicated to face processing. But they do know that there are two sides to this spectrum.  There are the sufferers of “face blindness” as mentioned above and there are a very few of us who find it difficult to NOT recognize a face even if they only encountered it briefly years ago.  The latter are dubbed “super recognizers”.

The short video below shows you the extremes of “face blindness”.

Filed Under: Nonverbal Behavior, Science

The Humintell Blog March 24, 2012

Facial Expressions in Dharun Ravi Verdict

Many of you have likely heard the story of former Rutger’s student Dharun Ravi.

Ravi, 20, was recently found guilty of a hate crime today for using a webcam to spy on his gay roommate, Tyler Clementi. Clementi’s case gained national attention when he committed suicide shortly after the spying by jumping off the George Washington Bridge Sept. 22, 2010.

Last week Ravi was convicted of invasion of privacy, bias intimidation, witness tampering and hindering arrest, stemming from his role in activating the webcam to peek at Clementi’s date with a man in the dorm room on Sept. 19, 2010. Ravi was also convicted of encouraging others to spy during a second date, on Sept. 21, 2010, and intimidating Clementi for being gay.

According to ABC News, three of the convictions carry a sentence of five to 10 years in prison. Because Ravi is a citizen of India, and is in the U.S. on a green card, he could be deported following his sentencing.

Take a look at the video  below while the verdicts to various counts were being read. Ravi mostly has a stoic expression on his face, except for some expressions of surprise to the jury’s decision on certain counts.

What do you see?

video platform video management video solutions video player

Filed Under: Nonverbal Behavior

The Humintell Blog March 22, 2012

Children with Sleep Disordered Breathing Prone to Emotional Problems?

Children A new study conducted by researchers from Albert Einstein College of Medicine of Yeshiva University, suggests that young children who have Sleep Disordered Breathing (SDB) are more likely to develop behavioral problems including hyperactivity and aggressiveness.

PsyhCentral reports that this study is the largest of its kind and found that the disorder peaks in children between the ages of 2-6 years.  The main symptoms of SDB  include snoring and sleep apnea and the primary causes of SDB are enlarged tonsils or adenoids.

Lead researcher Karen Bonuck, Ph.D. purported , “This is the strongest evidence to date that snoring, mouth breathing, and apnea (abnormally long pauses in breathing during sleep) can have serious behavioral and social-emotional consequences for children.”

Parents filled out a questionnaire when their child was around four to seven years of age.  This Strengths and Difficulties Questionnaire is widely used to access behavior and rates for inattention and hyperactivity as well as emotional symptoms , peer difficulty and behavior problems.

A pertinent question would be if the study took in to consideration other factors for behavioral problems , and the answer is yes.  The study accounted for 15 additional factors such as socioeconomic status, maternal smoking during pregnancy and low birth-weight.

“We found that children with sleep-disordered breathing were from 40 to 100 percent more likely to develop neurobehavioral problems by age 7, compared with children without breathing problems,” said Bonuck.  “The biggest increase was in hyperactivity, but we saw significant increases across all five behavioral measures.”

Researchers suggest that SDB triggers behavioral problems by harming the brain with a decrease in oxygen levels; therefore, an increase in carbon dioxide levels in the prefrontal cortex, which interrupts the restorative process of sleep.

Filed Under: Science

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