From: deputydog23x@gmail.com   
      
   Psychopaths don't yawn? One study suggests a link    
      
      
   POSTED 6:25 PM, AUGUST 15, 2015, BY JEN STEER, UPDATED AT 06:34PM, AUGUST 15,   
   2015    
        
   (Image courtesy: MGN Online)    
      
      
   WACO, Texas- A recent study by a Texas university shows those who don't yawn   
   may have more psychopathic tendencies.    
      
   Researchers at Baylor University exposed 135 students to a test intended to   
   induce yawns. A common characteristic of psychopathy is empathy, which can   
   trigger yawns in humans.    
      
   "One of the biggest lines of evidence is that (contagious yawning is) very   
   much related to empathy," PhD student Brian Rundle told The Times. "While this   
   is a really interesting finding, it doesn't mean that if you're not affected   
   by a contagious yawn    
   there's something wrong with you."    
      
   According to the study, published in Personality and Individual Differences,   
   the students with higher scores on the cold-heartedness scale were less likely   
   to yawn.    
      
   "Further, we found that emotion-related startle amplitudes were predictive of   
   frequency of contagious yawning. These data suggest that psychopathic traits   
   may be related to the empathic nature of contagious yawning in our species,"   
   the Baylor University    
   research stated.    
      
      
      
      
   http://fox8.com/2015/08/15/psychopaths-dont-yawn-one-study-suggests-a-link/   
      
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