, and 5 Hz binaural beats, which supposedly generate calming theta rhythms, aid meditation and promote sleep.
Generally, research studies involve short tests of a few minutes, whereas someone studying at home could be listening to binaural beats or other music for hours on end, finding it helps them drop into a focused state. To look for a placebo effect, participants in the binaural beats group were either told the sounds would improve brain function or were neutral, or the sounds weren't described at all.
The other acoustic stimulations – working in silence, listening to classical music, or the drone of a single sound – had little to no effect on participants' performance.
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