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100万个神经元将与计算机直接对话
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Topic: 100万个神经元将与计算机直接对话 (Read 238 times)
htmcoin
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100万个神经元将与计算机直接对话
July 12, 2017, 01:43:11 PM
#1
7月11日,美国国防部公布了一项投资6500万美元的“脑芯片”计划,希望研究人员开发一种脑机接口,让人脑与计算机直接相连,为战士提供“超级感受”。英国《每日邮报》、美国电气与电子工程师协会(IEEE)《光谱》杂志等多家外媒关注了此事。
美国国防部高级研究计划局(DARPA)官员称,该项目的目标,就是让这种可植入系统在大脑和计算机之间提供精准的双向通信,二者将直接对话。
那么,该计划的最大技术亮点是什么?相比目前的大脑植入物的优势何在?未来的成果可以用于哪些现实场景?
并行链接100万个神经元
现在最好的脑植入物,比如瘫痪病人用来控制机器人手臂的实验系统等,只能记录几百个神经元。
而DARPA的计划是通过先进的神经接口来并行接触超过100万个神经元,让高级神经元器件提供较高保真度、分辨率和精确度的感官界面。
“这将有助于加深DARPA对大脑的生物学属性、复杂性和功能的理解。”项目负责人菲利普·阿尔沃尔达说。
他介绍,该计划的第一阶段重点是在脑机接口的硬件、软件及神经科学方面取得重大突破,并开始在动物和培养细胞上进行测试;第二阶段,要求持续深化基础研究,与此同时整合取得的进展,开发可用于在人体上进行安全测试的新设备。
现在,美国布朗大学、哥伦比亚大学、视觉与听觉基金会、约翰·皮尔斯实验室、加州大学伯克利分校和Paradromics公司等机构,将获得DARPA数百万至上千万美元的资助,其中四个团队将重点放在视觉感受上,两个团队将关注听觉和语言系统的增强。
与每个神经元清楚地单独通信
目前,批准用于人类神经界面的芯片只能容纳100个信道,每个信道中聚合了来自数万个神经元的信号,结果是嘈杂且不准确。
相比之下,DARPA要开发的硬件,要在不超过一立方厘米的区域内实现通信链路,可以在大脑的指定区域与100万个神经元中的任何一个清楚地单独通信。
为了做到人脑与芯片充分相容、信号畅通无阻,获得资助的硅谷公司Paradromics,计划于2018年公布其设计的名为“NIOB”的无线芯片组,其中,将包含4个芯片和20万个微型元件,以保证信息的实施有效传输。
100万个神经元虽然仅占大脑总共86亿个神经元的一小部分,但处理起信号来也并非易事。
“双向通讯的含义,一方面要能记录大脑传输出来的脑电波;另一方面,还能将计算机生成的信号传输到大脑神经元。”阿尔沃尔达说。
给残障人士装上“神经假肢”
阿尔沃尔达启发道:“想像一下,当人脑与现代电子产品之间的渠道打开,会有什么可能?”
脑机双向交流意味着,对霍金这样的大家,他们活跃而宝贵的思想,可以直接传输到电脑中;反过来,还可以将电脑的信息录入人脑,以帮助失去听觉和视觉等感官的普通人。
“是的,如果我们成功向大脑直接传递丰富的感觉信号,该计划将为新的神经病学治疗奠定基础。”它的潜在应用,是可以通过向大脑传输高分辨率的数字听觉或视觉信号,弥补残障人士的视力或听觉缺陷。
作为计划的一部分,研究人员将与美国食品和药物管理局(FDA)合作,开始探索长期、安全的潜在应用评估。
offfit
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Re: 100万个神经元将与计算机直接对话
July 12, 2017, 10:35:44 PM
#2
人工智能要逆天了?
stauffermi_bos
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Re: 100万个神经元将与计算机直接对话
July 12, 2017, 10:46:07 PM
#3
在不就得将来,人工智能大大降低人力劳动强度,最终导致整个人类沦为二等生物。
sola0is
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Re: 100万个神经元将与计算机直接对话
July 12, 2017, 10:47:22 PM
#4
看了整个新闻真的是背脊阵阵发凉
Feedbacks
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Re: 100万个神经元将与计算机直接对话
July 13, 2017, 12:37:27 AM
#5
tpu不行
just198
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Re: 100万个神经元将与计算机直接对话
July 13, 2017, 02:14:22 AM
#6
厉害,当人脑与现代电子产品之间的渠道打开,人类有灭顶之灾吗?
antchains
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Re: 100万个神经元将与计算机直接对话
July 13, 2017, 02:16:44 AM
#7
听起来好像很腻害,就是不知道人类会不会被人工智能给收拾掉。
Dean_Jue
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Re: 100万个神经元将与计算机直接对话
July 13, 2017, 02:52:49 AM
#8
希望可以解决文章中描述的那些问题
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