0001番組の途中ですがアフィサイトへの転載は禁止です (ワッチョイW dda2-FjuO)2022/11/13(日) 12:57:47.34ID:ULns6w8H0?2BP(1000) Slaves to the rhythm: rats can’t resist a good beat, researchers say リズムへの奴隷 ネズミも心地よいビートには抗えない 研究者
Study finds rats instinctively move in time to music – an ability previously thought to be uniquely human White rat standing on two legs
0002番組の途中ですがアフィサイトへの転載は禁止です (ワッチョイW dda2-FjuO)2022/11/13(日) 12:58:03.66ID:ULns6w8H0?2BP(1000) Now scientists have discovered that rats also find rhythmic beats irresistible, showing how they instinctively move in time to music.
This ability was previously thought to be uniquely human and scientists say the discovery provides insights into the animal mind and the origins of music and dance.
“Rats displayed innate – that is, without any training or prior exposure to music – beat synchronisation,” said Dr Hirokazu Takahashi of the University of Tokyo.
“Music exerts a strong appeal to the brain and has profound effects on emotion and cognition,” he added.
In the study, published in the journal Science Advances, 10 rats were fitted with wireless, miniature accelerometers to measure the slightest head movements.
They were then played one-minute excerpts from Mozart’s Sonata for Two Pianos in D Major, at four different tempos: 75%, 100%, 200% and 400% of the original speed. Twenty human volunteers also participated.
The scientists thought it possible that rats would prefer faster music as their bodies, including heartbeat, work at a faster pace. By contrast, the time constant of the brain is surprisingly similar across species.
ネズミは心拍を含めて体の動きが速いので、音楽も速いものを好むのではと科学者たちは考えました。 対照的に、脳の時定数は種を超えて驚くほど似通っています。 0003番組の途中ですがアフィサイトへの転載は禁止です (ワッチョイW 03ba-l2Ka)2022/11/13(日) 12:58:18.22ID:Iiqvn6Ux0 ビートで人を操る能力あったな 0004番組の途中ですがアフィサイトへの転載は禁止です (ワッチョイW dda2-FjuO)2022/11/13(日) 12:58:38.34ID:ULns6w8H0?2BP(1000) However, the results showed that both the rat and human participants had optimal beat synchronicity when the music was in the 120-140 beats per minute (bpm) range – close to the Mozart composition’s original 132bpm – suggesting we share a “sweet spot” for hitting the beat.
The team also found that rats and humans jerked their heads to the beat in a similar rhythm, and that the level of head jerking decreased the more that the music was sped up.