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The neural activation in human brain for object perception in wide field

机译:宽场对象感知的人脑中的神经激活

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The present study examined the coding of retinal eccentricity spatial position in object selective cortex. Using a wide-view (about 120°) visual presentation system developed for vision research and functional magnetic resonance imaging (fMRI), the subject were presented with object, which were presented at a range of viewpoints in 6 level of eccentricity degree. We investigated the BLOD response to stimuli in two regions in the ventral visual cortex (V1) and Lateral Occipital Complex (LOC). The analysis further revealed the weaker BLOD response in the bigger eccentricity in both V1 and LOC areas. However, the activation to objects were quiet different in the cortex region. The V1 areas had flatter decreasing response as eccentricity increasing. However, V1 had bigger response in 11° eccentricity. And the LOC areas had neural activities decreasing sharply as eccentricity increasing. The result suggests reflected the neural response character influenced by eccentricity and stimuli cartage.
机译:本研究检测了对象选择性皮质中视网膜偏心空间位置的编码。使用宽视(约120°)的视觉演示系统为视觉研究和功能磁共振成像(FMRI)开发,对象呈现出物体,其在6级偏心度的观点范围内呈现。我们调查了腹侧视觉皮质(V1)和侧枕骨复合物(LOC)中的两个区域的刺激响应。该分析进一步揭示了V1和LOC区域的较大偏心中的较弱吹入响应。然而,在皮质区域中对物体的激活是安静的。随着偏心率的增加,V1区域的响应变得更加平坦。然而,V1在11°偏心率方面具有更大的反应。当偏心增加时,座位区域的神经活动急剧下降。结果表明,反映了受偏心率和刺激行李箱影响的神经反应特征。

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