Infographic: The Results Summed up

You can read this article for the details or watch the infographic with the main results of the study.

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Video: The Results in 72 Seconds

Here’s the video we’ve prepared to show you the results:

Learning a Language During Sleep: Improvement of Memorization Performances by More Than 40%

Lead during the month of September, the study had as its goal to test whether activities carried out during sleep could facilitate language learning.The results confirm the discoveries published by the University of Northwestern (USA) in 2012 and the University of Freiburg (Switzerland) in 2015: being exposed to a word or phrase during sleep helps remembering it more easily.

67% of participants of the MosaLingua study were thus able to improve their performance of memorizing vocabulary in a foreign language thanks to being exposed to it during the first phase of sleep: Moreover, half of these people showed improvement of more than 40%.

However, this much improvement was observed when memorizing words and phrases which participants had been exposed to beforehand.

In contrast, the study does show that it is not possible to learn an unknown word or phrase during sleep. Only 28% of participants showed any positive results; which leads to the conclusion that it is only possible to reactivate prior knowledge during sleep.

The Results in Details

Age Range

These results are confirmed for different age ranges, but we found that 80% of 18-30 years-old improved their performance after reviewing words/phrases they had been already exposed to.

Level

For beginners (A1) and upper beginners (A2) the positive effect of the revision of words/sentences already known is even greater: 75% of participants experienced an improvement of more than 40% of their performance.
63% of participants having an  intermediate level have improved their performance even for learning new words and phrases.

Gender

Gender did not influence the results of the study: we just remark that 75% of men have improved their revisions against 60% for women.

How The Study “Learning a Language During Sleep” Was Conducted

The experience was conducted for 2 weeks: 136 persons tested the new functionality of the MosaLingua app, which allows listening to words and phrases repeatedly during the light phase of sleep. It is during this phase that our brain is more sensitive to external stimulation.

Every other day, these persons were exposed to words they were already trying to memorize and the other nights to words they had never seen or heard. The performance obtained the day following the nocturnal learning session were then compared to the results of the day before.

The founders of MosaLingua explain: “The results of our study confirm the discoveries of the university studies which inspired us to test this. In our opinion, nothing can replace actively learning a language (using the Mosa Learning ® method): memorizing new words and phrases, and being attentive plays a big role. But the results of this test leads us to conclude that, for many people, reviewing words and phrases, which were learned beforehand, during sleep can have a positive effect. This is thus a new way of learning to be looked into more depth as it can be complementary to active learning.”

Continuing The Study…

The MosaLingua team will continue to study anonymous data of people using this function to pursue its mission statement since the creation of the company: to test the most efficient ways of learning languages in order to integrate them all in one comprehensive method.

The Main Sources of Our Study:

• Humans can learn new information during sleep, Nature Neuroscience (2012)
• Upgrading the sleeping brain with targeted memory reactivation, Trends in Cognitive Sciences (2013)
• Cued memory reactivation during sleep influences skill learning, Nature Neuroscience (2012)
• Odor cues during slow wave sleep prompt declarative memory consolidation, Science (2007)
• Strengthening individual memories by reactivating them during sleep, Science, 20 (2009)
• Boosting Vocabulary Learning by Verbal Cueing During Sleep, Cerebral Cortex, (2014)
• The sleep-memory connection and all the ways we can learn in our sleep, Medical Daily (2015)