{"version":1,"type":"rich","provider_name":"Libsyn","provider_url":"https:\/\/www.libsyn.com","height":90,"width":600,"title":"Never Cross a River Four Feet Deep on Average","description":"Guest post by Alexander "Sasha" Putilin [This is a guest post by 2024 ACX grantee Sasha Putilin. I encourage any ACX grantees who are interested to write about their projects. - SA] The results of my ACX Grants 2024 project are in. The project attempted to replicate the 2023 study \u201cLearning at your brain\u2019s rhythm: individualized entrainment boosts learning for perceptual decisions\u201d. It claimed that if you read a person\u2019s brain waves, figured out an individual peak alpha frequency, and flashed a bright white light at that frequency, then they learned a certain perceptual task faster. Why bother? The result hinted that learning may depend in part on how well the brain keeps its rhythms coordinated. In other words, perceptual learning may rely on an internal brain metronome. If flickering light could act as an external metronome, it might help the brain maintain the right rhythm and learn faster. The study offered an invitation to develop new frontiers of neuroscience and biohacking. If the effect generalised to other types of learning, you could build a learning helmet: put it on your head, let it read your brainwaves, flicker light tailored to your individual brain \u2014 and you learn a new skill quicker. And no, it didn\u2019t replicate. Most likely it can\u2019t replicate, because the effect is probably not real. The original study obscured the data with summary statistics. Running a $32,000 replication was excessive. We could\u2019ve caught the issue with this study if we simply looked at the original data carefully. *record scratch* *freeze frame* Yep, that\u2019s me. You\u2019re probably wondering how I got here. Here\u2019s the story. https:\/\/www.astralcodexten.com\/p\/never-cross-a-river-four-feet-deep ","author_name":"Astral Codex Ten Podcast","author_url":"http:\/\/sscpodcast.libsyn.com\/website","html":"