Some fortunate people have more “working memory” than others. It’s as if they have an extra pair of hands available for mental juggling; extremely useful for doing arithmetic and similar tasks in your head. These folk with abundant working memory capacity also tend to fare well academically and in their careers. Little surprise that “brain training” games like Lumosity and Cogmed target working memory in pursuit of these knock-on benefits (though the evidence that the training brings such benefits is weak).
What is surprising is the discovery a number of years ago that mentally dextrous people with greater working memory capacity seem to be particularly susceptible to “brain freeze” or choking under pressure.
For a new study in the Journal of Applied Research in Memory and Cognition, researchers at the University of Chicago and Michigan State University attempted to find out more about why this happens. Their results suggest that actually it’s only a subgroup of high working memory people who have this problem and it’s because of their high distractibility. These high ability chokers or brain freeze victims are “typically reliant on their higher working memory resources for advanced problem solving” but their poor attentional control renders them easily distracted by anxiety, causing their usual mental deftness to break down when the pressure is on.



