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《情绪的本质》学习笔记二十

  • 2026-11-07 22:03:33
《情绪的本质》学习笔记二十

第二十天

10 你的大脑只是一袋化学物质吗 神经回路研究如何改变精神疾病的治疗

作者首先给我们说了一个前景:“未来的精神疾病治疗,可能不再依赖于广撒网的分子药物,而是像精准导航一样,直接调节大脑中“患病”的特定神经细胞群,从根本上修复其功能。”

作者首先举例说了现在抑郁的患者的治疗的过程,这个过程的最后的结果并不好。没有药物可以直接解决疾病。

在理论上,可以通过靶向特定神经元,进行疾病的治疗。例如光遗传学可以激活特定的神经区域,但是他需要在大脑上进行打孔,插入光纤。还有一种化学遗传法:“由设计药物专门激活的设计受体”,并且“在实验室中,已经设计了不同类型的DREADD,当它们与药物结合时,可以增强或降低神经元的活性。”

通过向脑中注射含有受体基因的病毒,只需要一次手术,甚至新一代病毒可以通过血液注射。

这种科幻般的设计还有很大的困难:“首先,需要找到设计药物和设计受体的正确组合,并确保药物没有明显的副作用。其次,一个更大的障碍是确定特定的人类细胞类型,以保证在特定的精神疾病中对其进行操作可以产生疗效,还需要找到将设计受体引入该特定细胞类型所需的遗传“身份标识”。”

尽管科研经费高昂,实验开展困难,这种研究已经在进行了。“这种方法能否成功应用,仍然在极大程度上依赖于能否准确找到受影响的神经回路和细胞类型。”

未来的精神疾病可能通过基因改变来进行治疗,例如阿尔茨海默病这样的疾病不再让我们恐惧。

希望与挑战:通往新疗法的崎岖之路

本节讨论了“化学深部脑刺激”如果成功的两难境地:抗攻击性药物由谁开?怎么确定开给谁?“伯吉斯向读者提出了一个艰难的问题:为了清除社会中难以形容的残酷和可怕的病态暴力,是否有理由采用同样残忍并可能破坏个体独立性、能动性和自由意志的“康复”方法?”

作者例举了药物滥用的例子,引起人们的思考。再次回到我之前就思考的问题,任何技术的进步,最后还要落实到人的身上,做决策的人、使用技术的人,这种责任的承担,考验的不仅仅是智慧还有人性。

“每一项对社会有益的新技术,例如重组DNA和互联网,都存在被滥用的风险。”我们能感受到的就是AI飞速的发展,已经对个人的隐私造成了巨大的威胁。

作者给出的解决办法是“解决办法可能在于允许使用这种新型药物,但必须严格遵循精神病学家、犯罪学家、社会心理学家和神经伦理学家共同制订的指导方针,并对滥用者处以严厉的惩罚”。我们期待药物研发成功,并且价格平民化的一天。

本章的情绪实验室给出了对未来的展望“从缺乏针对性地用药,转向对特定神经回路的精准修复”。

这是本书正文的最后一章,给出了精神疾病治疗的新的前景,同时也提出了这种治疗方法的两面性。

和AI、互联网等等一样,科学的进步总会有两面性。可能走向辉煌,另一端就走向灭亡,感觉世界总是这样。人类的智慧就在于要制定规则来保证人类研究技术的进步是为了全人类的未来幸福生活。这样的理想不是一代人树立的,我们普通人可能只能教育孩子,热爱生活,热爱这个世界,让这个世界因为我们而更好。

我们不知道明天会怎么样,但是立刻行动让我们在变好的路上。

晚安。

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  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000346s ]
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  15. SELECT * FROM `article` WHERE `id` < 572822 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000589s ]
0.102682s