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Enhancing cognition in older adults also changes personality

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Thompson-McClellan

Engagement in cognitively challenging tasks led to an increase in openness to new experiences, researchers found.

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1/18/2012 | Diana Yates, Life Sciences Editor | 217-333-5802; diya@illinois.edu

CHAMPAIGN, lll. — A program designed to boost cognition in older adults also increased their openness to new experiences, researchers report, demonstrating for the first time that a non-drug intervention in older adults can change a personality trait once thought to be fixed throughout the lifespan.

Brent Roberts and Elizabeth Stine-Morrow

University of Illinois psychology professor Brent Roberts and educational psychology and Beckman Institute professor Elizabeth Stine-Morrow found that an intervention that boosts cognition in older adults also makes them more open. | Photo by Daryl Quitalig

Personality psychologists describe openness as one of five major personality traits. Studies suggest that the other four traits (agreeableness, conscientiousness, neuroticism and extraversion) operate independently of a person’s cognitive abilities. But openness – being flexible and creative, embracing new ideas and taking on challenging intellectual or cultural pursuits – does appear to be correlated with cognitive abilities.

The new study, published in the journal Psychology and Aging, gave older adults a series of pattern-recognition and problem-solving tasks and puzzles that they could perform at home. Participants ranged in age from 60 to 94 years and worked at their own pace, getting more challenging tasks each week when they came to the lab to return materials.

“We wanted participants to feel challenged but not overwhelmed,” said University of Illinois educational psychology and Beckman Institute professor Elizabeth Stine-Morrow, who led the research. “While we didn’t explicitly test this, we suspect that the training program – adapted in difficulty in sync with skill development – was important in leading to increased openness. Growing confidence in their reasoning abilities possibly enabled greater enjoyment of intellectually challenging and creative endeavors.”

Researchers tested the cognitive abilities and personality traits of 183 older adults, randomly assigned to either an experimental group who participated in a cognitive intervention or a control group who did not. They were tested a few weeks before the intervention and afterwards.

At the end of the program, those who had engaged in the training and practice sessions saw improvement in their pattern-recognition and problem-solving skills, while those in the control group did not. And those who improved in these inductive reasoning skills also demonstrated a moderate but significant increase in openness.

This study challenges the assumption that personality doesn’t change once one reaches adulthood, said Illinois psychology professor and study co-author Brent Roberts.

“There are certain models that say, functionally, personality doesn’t change after age 20 or age 30. You reach adulthood and pretty much you are who you are,” he said. “There’s some truth to that at some level. But here you have a study that has successfully changed personality traits in a set of individuals who are (on average) 75. And that opens up a whole bunch of wonderful issues to think about.”

Study authors also include psychology professor Joshua Jackson, of Washington University in St. Louis; U. of I. postdoctoral researcher Patrick Hill; and graduate student Brennan Payne.

Editor's note: To contact Brent Roberts, call 217-333-2644; email bwrobrts@illinois.edu.
To contact Elizabeth Stine-Morrow, call 217-244-2167; email eals@illinois.edu.

The paper, “Can An Old Dog Learn (and Want to Experience) New Tricks: Cognitive Training Increases Openness to Experience in Older Adults,” is available from the U. of I. News Bureau.

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