新しい科学的研究により、ピアニストのタッチが実際にピアノの音色を変化させることができるという、1世紀にわたる議論に決着がついた。研究チームは高性能センサーを用いて、高速で鍵盤の微細な動きを記録した。その結果、これらの動きが音の明るさ、重厚さ、明瞭さに聞き分け可能な違いをもたらすことが明らかになった。
この研究は、NeuroPiano Instituteおよびソニーコンピュータサイエンス研究所の古屋晋一博士らが率いる研究チームによって実施された。彼らは「HackKey」と呼ばれる独自の非接触型システムを採用し、ピアノの全88鍵盤の動きを1秒間に1000フレームの精度で追跡した。国際的に評価の高い20人のピアニストが、明るい音と暗い音、軽い音と重い音といった対照的な音色を奏で、そのデータが分析された。
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A small controlled experiment reported in Frontiers in Behavioral Neuroscience found that exposure to infrasound—ultra-low-frequency vibration below the range of human hearing—was associated with higher salivary cortisol and more negative mood ratings, even though participants could not reliably detect when the infrasound was present.
A study by researchers at Tufts University reveals that some Samoyeds alter the pitch of their howls in response to changes in music, suggesting an inherited vocal ability from wolf ancestors. The findings, published in Current Biology, indicate dogs can perceive and adapt to pitch without vocal learning. This may shed light on the evolutionary origins of human musicality.
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A recent article on Literary Hub discusses the influence of a notable neuroscience book.
Physicists have published research proposing that a single clock could tick both faster and slower at the same time due to quantum effects. The work combines relativity and quantum mechanics in a novel way. Researchers say advances in atomic clock technology may soon allow the idea to be tested in the lab.
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Physicists at New York University have developed a new type of time crystal using sound waves to suspend tiny styrofoam beads, resulting in nonreciprocal interactions that defy Newton's third law of motion. The compact, visible system oscillates in a steady rhythm and was detailed in Physical Review Letters. Researchers suggest potential applications in quantum computing and insights into biological rhythms.