EPISODE · Nov 24, 2025 · 16 MIN
475. 超声波诱导嗅觉：闻到意义
from 知为谁 · host 知为谁
该来源描述了一项开创性的研究，其中研究人员使用聚焦超声波刺激大脑中处理气味的区域，即嗅球，成功地在人类受试者中诱发出不同的气味感觉。这项工作被认为是首次尝试在活体中进行此类嗅觉刺激，并复制了“新鲜空气”和“燃烧木头”等四种不同的气味或感觉。研究人员通过将超声波换能器放置在额头上并向下瞄准嗅球，克服了解剖学上的挑战，并使用低频超声波确保安全和穿透颅骨。除了创造虚拟现实的气味体验之外，这项研究还提出了一个推测性的概念：气味可以作为一个高维度通道（可能多达400维）来直接将语义信息写入大脑，从而可能实现“嗅出意义”的能力。内容来源：https://writetobrain.com/olfactory
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475. 超声波诱导嗅觉：闻到意义
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