一个共享的代码来感知和想象人类腹腔皮层中的物体
bioRxiv : the preprint server for biology
|November 19, 2025
概括
心理图像依赖于用于视觉的相同脑细胞. 人类皮层 (VTC) 中的神经元使用一个特征轴代码来对象,而这个代码在心理图像中被重新激活.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
背景情况:
- 视觉感知机制在动物身上得到了很好的研究,但对心理图像的神经支柱的理解较少.
- 心理图像涉及回忆过去的经验和设想新的经验,这对认知至关重要.
研究的目的:
- 研究人类大脑中视觉图像的神经机制.
- 为了确定用于对象感知的相同神经代码是否参与视觉图像.
主要方法:
- 从单个神经元的记录活动在人类腹腔时皮层 (VTC).
- 确定了一个分布式轴代码,由VTC神经元用于表示对象.
- 基于已识别的神经代码生成合成刺激.
- 当受试者执行视觉图像任务时,测量神经反应.
主要成果:
- 大约80%的视觉响应的VTC神经元使用分布式轴代码进行对象表示.
- 大约40%的这些轴调节的VTC神经元在心理图像中显示视觉代码的重新激活.
- 从神经活动中重建想象中的物体是可能的.
结论:
- 视觉图像重新激活了与视觉感知有关的相同的神经群体和代码.
- 提供了单个神经元的证据,用于人类VTC中支持心理图像的生成模型.
- 表明共享的感知和想象的神经基础.
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