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  1. 18 de ago. de 2021 · How does the brain process fear and learn to associate it with certain stimuli? A study of epilepsy patients reveals the role of theta waves in the amygdala and the medial prefrontal cortex.

  2. Ruairi J Mackenzie. Crédito: Foto de Photo Boards en Unsplash. tiempo de lectura : Los investigadores han hecho un hallazgo espantoso al desentrañar los circuitos involucrados en producir una respuesta de miedo en el cerebro e identificaron un tipo de onda cerebral que coordinaba esta reacción.

  3. The key here is frequency: 19hz is in the range known as infrasound, below the range of human hearing, which begins at 20hz.

  4. SAMPLES19 Hertz INFRASOUND: http://ow.ly/m8Bi30gZUIt20 Hertz: http://ow.ly/BQx830gZULx🎵 SOUND GEAR FEATURED 🎵Klipsch Speakers: https://amzn.to/2KeWhdCBEEF...

  5. The two test an urban legend that claims that there is frequency around 19 Hz that can produce feelings of discomfort, dread and, yes, even fear. But the thing is, 19 Hz is below the threshold of human hearing, so these feelings are produced without anyone being able to hear the note.

  6. 27 de oct. de 2015 · The typical range for human hearing runs from 20 Hz to 20,000 Hz (20 kHz), although this varies from person to person, and shrinks as we age. Under ideal lab conditions, some people can...

  7. 30 de ago. de 2023 · The inaudible ‘fear frequency’ that makes horror films more terrifying. The mystery of the ‘ghost frequency’, the most terrifying sound known to man. Horror films use inaudible ‘infrasound’...