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透明大脑揭示针对快乐和恐惧的不同记忆通路

2016-06-12 佚名 中国科学报

一项日前发表于《细胞》杂志的研究显示,快乐和恐惧的记忆被“放置”在大脑中的不同通路上。此项发现或许会为抑郁症和其他心理健康问题带来更具针对性的治疗方法。来自美国斯坦福大学的Karl Deisseroth及其团队利用可卡因给予小鼠愉快的体验,或者利用电击令它们产生恐惧感从而获得了上述发现。随后,该团队利用一种制作透明大脑的技术,洗掉小鼠大脑中的脂肪物质,从而使其变得透明。在专用染料(能显示曾经活跃过


一项日前发表于《细胞》杂志的研究显示,快乐和恐惧的记忆被“放置”在大脑中的不同通路上。此项发现或许会为抑郁症和其他心理健康问题带来更具针对性的治疗方法。

来自美国斯坦福大学的Karl Deisseroth及其团队利用可卡因给予小鼠愉快的体验,或者利用电击令它们产生恐惧感从而获得了上述发现。

随后,该团队利用一种制作透明大脑的技术,洗掉小鼠大脑中的脂肪物质,从而使其变得透明。在专用染料(能显示曾经活跃过的细胞)的帮助下,团队成员如今能看见哪部分神经元网络对应愉快或恐惧的体验。

虽然两种记忆均被“放置”在内侧前额叶皮质中,但它们沿着不同的通路或者轴突投射得以储存。其中,这些通路和轴突投射同小鼠大脑中其他地方的不同区域相连。

Deisseroth介绍说,他们的发现或许对治疗心理健康疾病产生影响。一些药物和经颅磁刺激已经针对前额皮质。“如今,我们知道了针对恐惧和快乐的信号能通过不同的轴突投射得以传递,便可能构想出新的靶向治疗方法。”

来自英国伯明翰大学的Joff Lee表示,通过这种方法将不同的大脑通路分离是一项巨大的技术进步。他也认为,此项发现或许会带来更好的治疗方法。“对应快乐和恐惧的不同神经基质,或许能使药物研发有选择性地靶向支撑恐惧的机制”。而在未靶向这些特定神经元的情况下,旨在减少恐惧的药物可能会不小心影响人们处理快乐的方式。

原始出处:

Li Ye, William E. Allen, Kimberly R. Thompson,et al. Wiring and Molecular Features of Prefrontal Ensembles Representing Distinct Experiences. Cell.2016 May 01.

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    2016-10-12 ylzr123

    学习了,好文值得点赞!

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=146952, encodeId=1aec14695297, content=学习了,好文值得点赞!, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Wed Oct 12 16:11:55 CST 2016, time=2016-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89775, encodeId=1cde89e757e, content=不错,期待与人体比较, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Mon Jun 13 16:32:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89721, encodeId=0b6989e21b1, content=恐惧一方面使人学会趋利避害,是一种保护机制。, beContent=null, objectType=article, channel=null, level=null, likeNumber=224, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9da51712760, createdName=qq1e1c69fe, createdTime=Mon Jun 13 07:52:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89626, encodeId=35da896260d, content=研究不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=151, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:36:00 CST 2016, time=2016-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89625, encodeId=749589625db, content=这个可以, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:35:00 CST 2016, time=2016-06-12, status=1, ipAttribution=)]
    2016-06-13 明崖

    不错,期待与人体比较

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=146952, encodeId=1aec14695297, content=学习了,好文值得点赞!, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Wed Oct 12 16:11:55 CST 2016, time=2016-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89775, encodeId=1cde89e757e, content=不错,期待与人体比较, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Mon Jun 13 16:32:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89721, encodeId=0b6989e21b1, content=恐惧一方面使人学会趋利避害,是一种保护机制。, beContent=null, objectType=article, channel=null, level=null, likeNumber=224, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9da51712760, createdName=qq1e1c69fe, createdTime=Mon Jun 13 07:52:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89626, encodeId=35da896260d, content=研究不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=151, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:36:00 CST 2016, time=2016-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89625, encodeId=749589625db, content=这个可以, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:35:00 CST 2016, time=2016-06-12, status=1, ipAttribution=)]
    2016-06-13 qq1e1c69fe

    恐惧一方面使人学会趋利避害,是一种保护机制。

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=146952, encodeId=1aec14695297, content=学习了,好文值得点赞!, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Wed Oct 12 16:11:55 CST 2016, time=2016-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89775, encodeId=1cde89e757e, content=不错,期待与人体比较, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Mon Jun 13 16:32:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89721, encodeId=0b6989e21b1, content=恐惧一方面使人学会趋利避害,是一种保护机制。, beContent=null, objectType=article, channel=null, level=null, likeNumber=224, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9da51712760, createdName=qq1e1c69fe, createdTime=Mon Jun 13 07:52:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89626, encodeId=35da896260d, content=研究不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=151, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:36:00 CST 2016, time=2016-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89625, encodeId=749589625db, content=这个可以, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:35:00 CST 2016, time=2016-06-12, status=1, ipAttribution=)]
    2016-06-12 milkshark

    研究不错

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=146952, encodeId=1aec14695297, content=学习了,好文值得点赞!, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Wed Oct 12 16:11:55 CST 2016, time=2016-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89775, encodeId=1cde89e757e, content=不错,期待与人体比较, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Mon Jun 13 16:32:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89721, encodeId=0b6989e21b1, content=恐惧一方面使人学会趋利避害,是一种保护机制。, beContent=null, objectType=article, channel=null, level=null, likeNumber=224, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9da51712760, createdName=qq1e1c69fe, createdTime=Mon Jun 13 07:52:00 CST 2016, time=2016-06-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89626, encodeId=35da896260d, content=研究不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=151, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:36:00 CST 2016, time=2016-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=89625, encodeId=749589625db, content=这个可以, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Sun Jun 12 17:35:00 CST 2016, time=2016-06-12, status=1, ipAttribution=)]
    2016-06-12 milkshark

    这个可以

    0

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