The study was published in [_Frontiers in Neuroscience_](https://www.frontiersin.org/articles/10.3389/fnins.2023.1164334/full)——科普文結(jié)尾的原文鏈接；這個(gè)原文給了參考文獻(xiàn)的鏈接，對(duì)該話題有興趣的同學(xué)會(huì)很喜歡，所以我把其它鏈接放在結(jié)尾了——本文不牟利，如果有侵權(quán)的話請(qǐng)聯(lián)系我刪除，謝謝！

AI總結(jié)：

這篇文章研究了人類對(duì)聲音的偏好，并發(fā)現(xiàn)大腦對(duì)左側(cè)聲音有一種奇怪的偏好。瑞士洛桑聯(lián)邦理工學(xué)院（EPFL）、洛桑大學(xué)醫(yī)院和洛桑大學(xué)的神經(jīng)科學(xué)家進(jìn)行了腦部掃描實(shí)驗(yàn)，發(fā)現(xiàn)當(dāng)我們從左側(cè)聽到愉悅的聲音（如笑聲）時(shí)，大腦聽覺系統(tǒng)的神經(jīng)活動(dòng)會(huì)更強(qiáng)烈。這表明人類聽覺皮層對(duì)使我們開心的聲音的方向有特殊的調(diào)諧能力。盡管為什么會(huì)存在這樣的偏好還不清楚，但之前的研究表明左耳更容易識(shí)別聲音中的情感色彩，暗示著某種潛在的專門化。研究參與者聽到來自不同方向的快樂的人聲時(shí)，兩側(cè)聽覺皮層都會(huì)激活，但單獨(dú)從左側(cè)聽到的聲音會(huì)引發(fā)更強(qiáng)烈的神經(jīng)反應(yīng)。這種對(duì)人聲情感的左側(cè)偏好并不容易解釋，但它可能與進(jìn)化中的生存機(jī)制和人類發(fā)展的特征有關(guān)。研究發(fā)現(xiàn)在神經(jīng)發(fā)育中出現(xiàn)這種左側(cè)偏好的時(shí)間點(diǎn)還不清楚，這個(gè)特征是否是獨(dú)特的人類特征也還需要進(jìn)一步探索。

1. Perception - the way in which something is regarded, understood, or interpreted. [Link](https://www.merriam-webster.com/dictionary/perception)

2. Neural - relating to a nerve or the nervous system. [Link](https://www.merriam-webster.com/dictionary/neural)

3. Cortex - the outer layer of an organ or structure, especially the outer portion of the brain. [Link](https://www.merriam-webster.com/dictionary/cortex)

4. Bias - an inclination or prejudice for or against something or someone. [Link](https://www.merriam-webster.com/dictionary/bias)

5. Emotional - relating to a person's emotions. [Link](https://www.merriam-webster.com/dictionary/emotional)

6. Activation - the action or process of making something active or operative. [Link](https://www.merriam-webster.com/dictionary/activation)

7. Ominous - giving the impression that something bad or unpleasant is going to happen. [Link](https://www.merriam-webster.com/dictionary/ominous)

8. Arouse - to excite or stimulate someone's feelings or sexual interest. [Link](https://www.merriam-webster.com/dictionary/arouse)

9. Sensitivity - the quality or state of being sensitive. [Link](https://www.merriam-webster.com/dictionary/sensitivity)

10. Asymmetric - lacking symmetry or corresponding in shape, size, or arrangement. [Link

短評(píng)：

這篇短文是我今天發(fā)總結(jié)專欄的主要原因，因?yàn)樗膮⒖嘉墨I(xiàn)的觀點(diǎn)聽起來太吸引人了——但是，整理轉(zhuǎn)發(fā)完之后我發(fā)現(xiàn)我對(duì)參考文獻(xiàn)的好奇心消失了??

另外，以前在隔壁舍友那大家一起看過一個(gè)電影叫《左耳》，我記得挺好看的～

研究中的發(fā)現(xiàn)往往是統(tǒng)計(jì)上顯著，未必真的有明顯差異，而且這個(gè)研究介紹里只提了聽覺皮層的神經(jīng)激活程度，與我們主觀感受上的差異是不一定等同的；另外，這是個(gè)功能性磁共振研究，結(jié)果來自血氧水平依賴（BOLD）信號(hào)，主要反映的是不同腦區(qū)耗氧量的變化——確實(shí)也能反映神經(jīng)激活程度，但還是可能有些我不太懂的差別的。

欄目說明：本欄目意在分享扇貝閱讀app中喜歡的短文；并不會(huì)逐字翻譯，因?yàn)闆]有意義——無論是app內(nèi)部還是各種翻譯器都會(huì)提供翻譯功能；和通常的營(yíng)銷號(hào)不同，我轉(zhuǎn)發(fā)的是我自己真的閱讀過的短文～這個(gè)欄目不會(huì)每日更新，但是我如果不在這里更新基本上會(huì)在微博分享自己讀的短文和短評(píng)；不必關(guān)注我，關(guān)注話題#扇貝閱讀#即可。

參考文獻(xiàn)段落：

That said, [previous studies](https://www.sciencedirect.com/science/article/abs/pii/S0093934X00924763)?have shown the left ear can more easily identify the emotional tone in someone's voice, hinting at some underlying specialization.

"This does not occur when positive vocalizations come from the front or right," [says](https://blog.frontiersin.org/2023/05/19/our-brain-reacts-more-strongly-to-positive-human-sounds-if-these-come-from-our-left/?utm_source=rss&utm_medium=rss&utm_campaign=our-brain-reacts-more-strongly-to-positive-human-sounds-if-these-come-from-our-left) neuroscientist Sandra da Costa from EPFL.

[Previous](https://academic.oup.com/cercor/article/18/1/145/320794) [studies](https://psycnet.apa.org/record/2010-06281-007) have shown that looming sounds are often perceived as more ominous and arousing than receding sounds. And evidence [suggests](https://psycnet.apa.org/record/2010-09991-010) a person is more easily aroused?when a sound comes from behind.