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by radomir_cernoch
1387 days ago
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There are also the Mind machines [1]. At least in Europe, there's still a company Galaxy that sells them under the "psychowalkman" name. I've used about 20 years ago. It wasn't unpleasant, but also without a big effect. I think it was because the overall feeling was a bit like a medical examination. You put plastic gear on your eyes and your ears, tangled cables everywhere... and then you're supposed to relax. [1] https://en.m.wikipedia.org/wiki/Mind_machine |
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Around this time Binaural Beats / Hemi-sync was also out there.
https://en.wikipedia.org/wiki/Hemi-Sync
Both claiming to create brain wave entrainment and easier meditative states.