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Talented people more likely to wilt under pressure

« H E » email
posted Monday, 19 February 2007

Talented people often choke under pressure because the distraction caused by stress consumes their working memory, a psychologist at the University of Chicago has found.

Highly accomplished people tend to heavily rely on their abundant supply of working memory and are therefore disadvantaged when challenged to solve difficult problems, such as mathematical ones, under pressure, according to research by Sian Beilock, Assistant Professor of Psychology at the University of Chicago. Her findings were presented Saturday at the annual meeting of the American Association for the Advancement of Science.

People with less adequate supplies of working memory learn other ways of problem solving to compensate for their deficiencies and although these alternative problem solving strategies are not highly accurate, they are not impacted additionally by working under pressure, the research found.

Beilock found that when put under pressure, the talented people with larger amounts of working memory began using short-cuts to solve problems, such as guessing and estimation, strategies similar to those used by individuals with less adequate working memories. As a result of taking those shortcuts, the accuracy of the talented people was undermined.

"These findings suggest that performance pressure harms higher working memory individuals by consuming the cognitive resources that they rely on for their superior performance - and as a result, higher working memory individuals respond by switching to the less accurate problem solving strategies normally used by lower working memory students," Beilock said.

The results have implications for the evaluation of performance on high stakes tests, such as those needed to advance in school and college entrance examinations, she said.

Working memory is a short-term memory system that maintains a limited amount of information in an active state. It functions by providing information of immediate relevance while preventing distractions and irrelevant thoughts from interfering with the task at hand.

People with a high level of working memory depend on it heavily during problem solving. "If you've got it, flaunt it" Beilock said.

However, that same advantage makes them particularly susceptible to the dangers of stress.

"In essence, feelings of pressure introduce an intrusion that eats up available working memory for talented people," Beilock said.

In order to study the impact of stress on working memory, Beilock and her colleagues tested roughly 100 college undergraduates. They gave them tests to determine the strength of their working memory and then subjected them to a series of complicated, unfamiliar mathematics problems.

Students were given pressure by being told they would be paid for their correct answers, but that they would only receive the money if a partner, chosen randomly who they did not know, would also win. Then they were told that their partner had solved the problem correctly, thus increasing the pressure.

The study showed that as a result of the pressure, the performance of students with strong working memory declined to the same level as those with more limited working memory. Those with more limited working memory performed as well under added pressure as they did without the stress.


Beilock SL.
Choking in Math: Most Qualified To Succeed = Most Likely To Fail
Presentation: AAAS Annual Meeting, San Francisco, CA. 2007 Feb 17

tags: memory impairment    

links: digg this    del.icio.us    technorati    reddit




1. Ling left...
Monday, 19 February 2007 7:20 am :: http://ling.blog-city.com

Very interesting. This is my own experience during some math exams as an undergraduate, especially in difficult senior courses. (I'm doing a ph.d. in math now.) I could do extremely well on difficult problem set material assigned throughout a course, and usually relished the challenges, but would frequently choke on tests. Stress and anxiety would lead to semi-panics when confronted with something out of the ordinary - sometimes even something ordinary - on a test, and that would essentially destroy my performance on the whole test. Definitely I would experience memory impairment, as well as impairment of my usual analytical thought processes.

In contrast, when I had to write one of my ph.d. comprehensive exams on a day's notice, I performed well. At that particular time I was on Effexor and I believe that as a result my anxiety level was kept in check sufficiently that the stress did not interfere. Rather it was kept at a level which was beneficial. (Some stress is good.)