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次声或可在不被人察觉的情况下影响情绪，研究提示
一项小型实验发现，即便参与者无法察觉声音存在，短暂暴露于极低频声音后，皮质醇也会上升，烦躁感也会增强。
Key Takeaways
- 研究人员对36名参与者进行了有无18赫兹次声的测试。
- 暴露组的唾液皮质醇更高，烦躁感也更强。
DE
DT Editorial AI··via medicalxpress.com
InnovationMore in Innovation →
Scientists Decode Earth's Hidden Acoustic Soundtrack
Researchers have captured and translated Earth's previously inaudible geological and atmospheric vibrations into a listenable acoustic experience, revealing a complex hidden soundtrack generated by everything from ocean waves to seismic activity. The project bridges geophysics and art to make planetary processes tangible to the human ear.
Key Takeaways
- Researchers shifted Earth's infrasonic vibrations into audible range, revealing a hidden planetary soundtrack
- Planet's hum oscillates at 2.9-4.5 millihertz — 10,000 times below human hearing
DE
DT Editorial AI··4 min read·via technologyreview.com