Witryna149 views, 27 likes, 0 loves, 8 comments, 9 shares, Facebook Watch Videos from Miami Boat Ramps: SOUND UP It's like nails on a Chalkboard #boatramp... Witryna15 mar 2024 · From the research conducted, two sounds that were rated as the most unpleasant, among participants were,fingernails scratching on a chalkboard and a piece of chalk running against slate. The researchers then created variations of these two sounds by modifying certain frequency ranges. Half of the listeners were told the true …
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Witryna10 lis 2011 · The participants rated their discomfort with each sound, allowing the researchers to identify the two worst sounds: fingernails scratching on a chalkboard … Witryna3 lis 2011 · Research participants were exposed to the sound of nails on a chalkboard and similar sounds, such as a fork scraping a plate. Some were told the sound was part of a musical piece, while others were told the truth. The researchers measured the physical reactions of participants, such as their heart rate and blood pressure, while … Witryna2 lis 2011 · They exposed participants to the sound of nails on a chalkboard as well as similar sounds, such as a fork scraping a plate and Styrofoam squeak, according to ScienceNow. Some were told the sound was part of a "musical composition," while others were told the source of the noise. darren robinson derby county coach