左耳开心？人类对左侧的声音表现出奇特的偏好【AI总结】【英语阅读溯源】
The study was published in [_Frontiers in Neuroscience_](https://www.frontiersin.org/articles/10.3389/fnins.2023.1164334/full)——科普文结尾的原文链接；这个原文给了参考文献的链接，对该话题有兴趣的同学会很喜欢，所以我把其它链接放在结尾了——本文不牟利，如果有侵权的话请联系我删除，谢谢！
AI总结：
这篇文章研究了人类对声音的偏好，并发现大脑对左侧声音有一种奇怪的偏好。瑞士洛桑联邦理工学院（EPFL）、洛桑大学医院和洛桑大学的神经科学家进行了脑部扫描实验，发现当我们从左侧听到愉悦的声音（如笑声）时，大脑听觉系统的神经活动会更强烈。这表明人类听觉皮层对使我们开心的声音的方向有特殊的调谐能力。尽管为什么会存在这样的偏好还不清楚，但之前的研究表明左耳更容易识别声音中的情感色彩，暗示着某种潜在的专门化。研究参与者听到来自不同方向的快乐的人声时，两侧听觉皮层都会激活，但单独从左侧听到的声音会引发更强烈的神经反应。这种对人声情感的左侧偏好并不容易解释，但它可能与进化中的生存机制和人类发展的特征有关。研究发现在神经发育中出现这种左侧偏好的时间点还不清楚，这个特征是否是独特的人类特征也还需要进一步探索。
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
短评：
这篇短文是我今天发总结专栏的主要原因，因为它的参考文献的观点听起来太吸引人了——但是，整理转发完之后我发现我对参考文献的好奇心消失了😂
另外，以前在隔壁舍友那大家一起看过一个电影叫《左耳》，我记得挺好看的～
研究中的发现往往是统计上显著，未必真的有明显差异，而且这个研究介绍里只提了听觉皮层的神经激活程度，与我们主观感受上的差异是不一定等同的；另外，这是个功能性磁共振研究，结果来自血氧水平依赖（BOLD）信号，主要反映的是不同脑区耗氧量的变化——确实也能反映神经激活程度，但还是可能有些我不太懂的差别的。
栏目说明：本栏目意在分享扇贝阅读app中喜欢的短文；并不会逐字翻译，因为没有意义——无论是app内部还是各种翻译器都会提供翻译功能；和通常的营销号不同，我转发的是我自己真的阅读过的短文～这个栏目不会每日更新，但是我如果不在这里更新基本上会在微博分享自己读的短文和短评；不必关注我，关注话题#扇贝阅读#即可。
参考文献段落：
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.
