An Effortless Way to Improve Your Memory

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An Effortless Way to Improve Your Memory

A surprisingly potent technique can boost your short and long-term recall – and it appears to help everyone from students to Alzheimer’s patients.

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A surprisingly potent technique can boost your short and long-term recall – and it appears to help everyone from students to Alzheimer’s patients.​

The remarkable memory-boosting benefits of undisturbed rest were first documented in 1900 by the German psychologist Georg Elias Muller and his student Alfons Pilzecker. In one of their many experiments on memory consolidation, Muller and Pilzecker first asked their participants to learn a list of meaningless syllables. Following a short study period, half the group were immediately given a second list to learn – while the rest were given a six-minute break before continuing.

When tested one-and-a-half-hours later, the two groups showed strikingly different patterns of recall. The participants given the break remembered nearly 50 percent of their list, compared to an average of 28 percent for the group who had been given no time to recharge their mental batteries. The finding suggested that our memory for new information is especially fragile just after it has first been encoded, making it more susceptible to interference from new information.

Although a handful of other psychologists occasionally returned to the finding, it was only in the early 2000s that the broader implications of it started to become known, with a pioneering study by Sergio Della Sala at the University of Edinburgh and Nelson Cowan at the University of Missouri.