Memory under pressure

"People perceived as the most likely to succeed might also be the most likely to crumble under pressure," begins the LiveScience article Smart People Choke Under Pressure.

No, it's not about the dysfunctional contestants on NBC's "The Apprentice" -- although that's a pretty good synopsis of one of the show's major themes -- but rather the surprising shortcomings of having a good memory:

A new study finds that individuals with high working-memory capacity, which normally allows them to excel, crack under pressure and do worse on simple exams than when allowed to work with no constraints. Those with less capacity score low, too, but they tend not to be affected by pressure.

"The pressure causes verbal worries, like ‘Oh no, I can’t screw up,’" said Sian Beilock, assistant professor of psychology at Miami University of Ohio. "These thoughts reside in the working memory." And that takes up space that would otherwise be pondering the task at hand.

"When they begin to worry, then they’re in trouble," Beilock told LiveScience. "People with lower working-memory capacities are not using that capacity to begin with, so they’re not affected by pressure." ...

Since working memory is known to predict many higher-level brain functions, the research calls into question the ability of high-pressure tests such as the SAT, GRE, LSAT, and MCAT to accurately gauge who will succeed in future academic endeavors.