For those worried about school performance, a flexible view of learning is also linked to better grades. Studies led by Mangels' colleague at Columbia University, Carol Dweck, show that flexible thinkers are more motivated, can better cope with and achieve higher goals in the face of academic adversity compared to those who have a set belief of intelligence. Picking up on this theme, Mangels recently tested some fifty college students to see if such attitudes might influence long-term memory.
As part of the study, which has yet to be published, about half of the students identified themselves as flexible learners; they believed that anyone could do well in school by working hard. The other half, who researchers dubbed the "entity theorists", said that being smart is essentially the luck of the draw.
Mangels' team measured brain activity in students as they asked various questions dealing with humanities, science and geography. To ensure that both groups started on the same emotional playing field, Mangels rigged the test so that all the students would flunk. "We made sure that everyone experienced the same miserable sense of failure," she says.
Afterwards, the researchers told the students the correct answers, and then surprised them by giving them same test over again. The flexible learners remembered 8 percent more of the right answers than the students who believed intelligence is fixed.
According to brain imaging scans, the flexible learners also showed more sustained activity in the frontal and left posterior regions of the brain, a sign that they might remember the information for a longer time.
"It's like preparing for work by doing some of it ahead of time," says Mangles, adding that a flexible mentality is good to pick up at any age. To improve your memory, don't be afraid to admit that you may not know everything. And if you still call someone "what's his name," keep motivated to get it right the next time. "Even when the chips are down, you can still learn," Mangels says.