Using a computer program he’s developed to measure the relationship between language and personality, James Pennebaker, chair of the University of Texas Psychology Department, compared the words President Barack Obama used in his recent State of the Union address to addresses delivered by every president since Harry Truman. Obama’s words were similar to those he used in the address he gave to Congress in early 2009. He is becoming a little more dynamic in his thinking and slightly less positive in his emotional tone. “Otherwise, he maintains a remarkably even style in the ways he talks to his audiences,” Pennebaker says. · Go to Pennebaker says Obama’s speech suggests little optimism, emotional distance →