New findings suggest individuals can develop new memories while asleep, according to The Washington Post. In a new study, a team of neuroscientists demonstrated that it is possible to teach acoustic lessons to individuals while they’re sleeping. “We proved that you can learn during sleep, which has been a topic debated for years,” author Thomas Andrillon told the Post. During the study, the investigators played clips of white noise for 20 sleeping participants. Although most of the audio was random, there were patterns occasionally embedded within the white noise, according to the authors. The results showed sleepers cannot focus on what they’re hearing nor make explicit connections, but memorizing acoustic patterns like white noise happens automatically, the Post reported. Scientists played back the white noise recordings for the sleepers once they were awake, and were asked to identify patterns within the noise. The findings showed the participants could successfully detect the patterns significantly better than random chance would predict. Additionally, memories of white noise patterns were found to form only during certain sleep stages. During REM and light sleep, the participants could remember the pattern the next morning, whereas during deeper non-REM sleep, playing the recording hampered recall, the Post reported. “[Patterns] presented during non-REM sleep led to worse performance, as if there were a negative form of learning,” Andrillon told the Post.