Using revamped photo lineup procedures, a Dallas police officer shows a victim of a robbery a single photo of a suspect in an interview room at police headquarters in 2009. Dallas officially adopted lineup reforms two years ago, and last month the state of Texas said all police departments must review lineup procedures. LM Otero/AP hide caption

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To Prevent False IDs, Police Lineups Get Revamped

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Union College psychology professor Chris Chabris and his students staged an outdoor fight to study inattentional blindness. Matt Milless/Union College hide caption

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Why Seeing (The Unexpected) Is Often Not Believing

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Creator Of Psychopathy Test Worries About Its Use

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Robert Dixon Sr. holds a photograph of his son, Robert Dixon Jr. (far right), his son's mentor Bob Stuart, and himself (far left). Lianne Milton for NPR hide caption

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Can A Test Really Tell Who's A Psychopath?

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Joseph Corbett (center), who was convicted of killing millionaire Adolph Coors III, is led to the Jefferson County courthouse in Golden, Colo., in 1961. John F. Urwiller/AP hide caption

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Fame Through Assassination: A Secret Service Study

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A mother watches a video taken of herself playing with her daughter for Bellevue Hospital's Video Interaction Project. Former hospital employee Brenda Woodford reviews the footage, offering positive feedback and areas for improvement. Courtesy of Children of Bellevue Archives hide caption

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Closing The Achievement Gap With Baby Talk

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The definitions for some mental disorders may change in the new edition of the DSM. Mark Strozier/iStockphoto.com hide caption

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What's A Mental Disorder? Even Experts Can't Agree

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Study: Female Vets Especially Vulnerable To Suicide

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Brothers Eric (from left) and Tom Hoebbel have the same genes, but they couldn't be more different. Courtesy of Tom Hoebbel hide caption

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Siblings Share Genes, But Rarely Personalities

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How To Win Doctors And Influence Prescriptions

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Through the lens of evolution, a belief in God serves a very important purpose: Religious belief set us on the path to modern life by stopping cheaters and promoting the social good. iStockphoto.com hide caption

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Is Believing In God Evolutionarily Advantageous?

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