之前的岛屿活动标志着由时间和空间背景引发的感知冲突
Katrin Reichenbach1, Marcus Rothkirch1,2, Lucca Jaeckel1,3
1Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Psychiatry and Neurosciences, Charitéplatz 1, 10117 Berlin, Germany.
这项研究揭示了前面的岛屿.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 感知 感知 感知 感知
背景情况:
- 感官信号是模两可的,导致主观经验解决这种模两可.
- 双面感知展示了模两可的输入如何导致交替的感知状态.
- 预测处理模型表明时间上下文稳定了感知,冲突导致预测错误驱动感知开关.
研究的目的:
- 为了比较由时间上下文违规而产生的感知冲突的神经相关性与空间上下文违规.
- 在预测处理框架内调查前半岛在处理感知冲突中的作用.
主要方法:
- 使用了功能磁共振成像 (fMRI).
- 使用了具有时空和空间上下文调制的双可视感知范式.
- 参与者在时间或空间冲突的条件下看到了模两可的结构-运动刺激.
主要成果:
- 在时间和空间感知冲突中观察到双边前侧岛屿激活.
- 接近感知预测错误的信号在前半岛,右下额头,右下叶中被发现.
- 这些发现突出了前半岛在检测感知冲突中的作用.
结论:
- 前部岛内皮质对于检测感知冲突至关重要,不管它们是否来自时间或空间背景.
- 这些发现支持前半岛在从模糊的感官输入中构建稳定,明确的感知体验方面的作用.
- 这项研究有助于理解主观经验和预测处理的神经基础.
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