局部场潜在反应与的原始视觉皮层盲点的感知填充相关
Harumi Saito1,2, Akihiro Masaoka1, Hidehiko Komatsu1
1Brain Science Institute, Tamagawa University, Machida, Tokyo, Japan.
Journal of neurophysiology
|November 1, 2023
概括
初级视觉皮层 (V1) 中的神经活动解释了盲点 (BS) 的感知填充. 表面层中的β频段局部场潜力 (LFP) 反应和深层中的神经元活动是这一过程的关键指标.
科学领域:
- 神经科学是一个神经科学.
- 视觉感知 视觉感知 视觉感知
- 皮层机制 皮层机制
背景情况:
- 盲点 (BS) 是视野中缺乏光受体的区域,但由于神经"填充",感知往往看起来是完整的.
- 了解主要视觉皮层 (V1) 中这种感知填充的神经基础对于视觉神经科学至关重要.
研究的目的:
- 为了研究在子的盲点 (BS) 中潜在的感知填充的神经机制.
- 为了确定与填充现象相关的V1中的特定神经活动.
主要方法:
- 在V1的BS区域使用线性阵列电极记录了多单元活动 (MUAs) 和局部场势 (LFPs).
- 在视觉固定任务期间,在单眼和双眼条件下检查了神经对BS覆盖的刺激的反应.
主要成果:
- 在单眼条件下,在BS区域内深层V1层 (主要是5层) 中观察到显著的MUA反应.
- 在单眼条件下,与BS区域的双眼条件相比,在表面V1层中发现更强的低β频段LFP反应.
- 这些发现证实了在感知填充过程中BS区域的神经元激活,并突出了LFP的特定特征.
结论:
- 在BS的感知填充涉及V1中不同的神经活动,包括深层神经反应和表面层β频段振荡.
- 在V1的BS区域的表面层中,低β活性似乎与感知填充有关.
- 这些结果表明,从外层区域到V1的反信号在介导盲点填充中起作用.
关键词:
V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1 V1有一个盲点,一个盲点.有关反的意见反反反.填充-填充-填充-填充-填充-填充当地场潜在低β波局部场潜在低β波更多相关视频
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