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首页> 外文会议>ICME International Conference on Complex Medical Engineering >Differential Sensitivity for House Pictographs and Chinese Logographs in the 'Parahippocampal Place Area'
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Differential Sensitivity for House Pictographs and Chinese Logographs in the 'Parahippocampal Place Area'

机译：房屋象形文字和中国登录的差分敏感度在“ParahipPopapal Place”

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The "parahippocampal place area, PPA" within parahippocampal cortex is generally implicated in perceiving the local visual environment. This region responds selectively and automatically in functional magnetic resonance imaging (fMRI) to house images. Previous studies have indicated that the house-selective response in the PPA can be explained by selectivity for low-level features of the visual stimuli, such as geometric structure and high special frequency (SF). However, it remains unclear which of the two visual features of stimuli contributes more to the house-selective response in the PPA. To address this issue, we compared the PPA response to house pictographs and Chinese logographs with two different levels of white noise. fMRI was used to record the subjects' PPA activation during category discrimination task between house and word. As a result, the PPA showed significant main effect of category but not noise level. The results suggest that the PPA is more tuned to geometrical structure of visual stimuli than their high SF features..
机译：在ParahipPocampal皮层内的“ParahipPopal Place区域PPA”通常涉及感知本地视觉环境。该区域在功能磁共振成像（FMRI）中选择性地和自动响应到房屋图像。以前的研究表明，PPA中的房屋选择性响应可以通过可视刺激的低级特征的选择性来解释，例如几何结构和高特殊频率（SF）。然而，它仍然不清楚刺激的两种视觉特征中的两个视觉特征促进了PPA中的房屋选择性响应。为了解决这个问题，我们将PPA响应与两种不同的白噪声水平进行了比较了PPA响应。 FMRI用于记录房屋和单词之间类别歧视任务期间的受试者的PPA激活。结果，PPA显示出类别而不是噪声水平的显着效果。结果表明，PPA更加调整到视觉刺激的几何结构，而不是其高SF特征。

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