A replication of a 2023 neuroscience study on brain entrainment and learning found that the original effect likely doesn't exist, revealing how the study obscured key issues through statistical averaging and highlighting how AI tools are democratizing scientific scrutiny. Longer summary

Sasha Putilin received an ACX grant to replicate a 2023 study claiming that flickering lights synchronized to individual brain rhythms could boost learning speed threefold. The $32,000 replication with 12 participants (versus 80 in the original) found no such effect. Upon examining the original data more closely, Putilin discovered the apparent effect was driven entirely by a few participants with large negative learning rates (getting worse over time) who happened to all be in one experimental group. The original study had obscured this pattern by presenting averaged data rather than individual results. Putilin argues this exemplifies 'cargo-cult statistics' where researchers mechanically apply statistical rituals without critically examining underlying data. The post concludes by suggesting AI tools are democratizing meta-science, enabling anyone to audit published research that previously required expert-level effort. Shorter summary

Scott summarizes interesting comments on his 'Rhythms of the Brain' book review, covering various aspects of brain waves and related topics. Longer summary

This post highlights various comments on Scott's review of 'Rhythms of the Brain'. Topics include explanations of brain waves, their importance in AI and neuroscience, criticisms of their perceived significance, interesting facts about brain rhythms, discussions on phi and conduction delay, perspectives on synchrony, and some tangential discussions on other scientific naming conventions and cryptocurrency. Shorter summary

Scott reviews 'Rhythms Of The Brain', exploring the nature and potential significance of brain waves in neuroscience and consciousness. Longer summary

Scott reviews 'Rhythms Of The Brain' by Gyorgy Buzsaki, exploring the nature and potential significance of brain waves. He discusses why brains produce oscillations, the characteristics of these waves, their possible functions, and speculates on their relationship to consciousness and spiritual experiences. The review concludes with thoughts on how the absence of brain-wave equivalents in AI might affect their development of consciousness or selfhood. Shorter summary