Age and culture modulate object processing and object-scene binding in the ventral visual area
Age and culture modulate object processing and object-scene binding in the ventral visual area
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DOI：
10.3758/cabn.7.1.44
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发表时间：
2007-03-01
影响因子：
2.9
通讯作者：
Park, Denise C.
中科院分区：
文献类型：
--
作者：
Goh, Joshua O.;Chee, Michael W.;Park, Denise C.
不同文化群体在物体和背景的视觉处理上的行为差异有很好的文献记载。最近的神经成像证据也指出了神经激活模式的文化差异。与东亚人相比，西方人的视觉处理更专注于物体，他们激活的神经结构反映了这种对物体的偏好。在最近的一项适应研究中，东亚老年人表现出缺乏物体处理区域，但对背景区域的适应正常。在本研究中，75名年轻人和老年人（一半是东亚人，一半是西方人）在fmr适应研究中进行了测试，以检查对象和背景处理以及对象-背景结合的差异。我们发现，在所有四组中，海马旁回的背景处理都是相同的，东亚和西方老年人海马的结合过程减少，老年人与年轻人相比，枕侧复合体的物体处理减少。东亚老年人客体区域的适应反应明显低于西方老年人。这些发现表明，知觉过程的可塑性是由于群体特定经历或文化暴露随时间的不同而产生的。
Behavioral differences in the visual processing of objects and backgrounds as a function of cultural group are well documented. Recent neuroimaging evidence also points to cultural differences in neural activation patterns. Compared with East Asians, Westerners' visual processing is more object focused, and they activate neural structures that reflect this bias for objects. In a recent adaptation study, East Asian older adults showed an absence of an object-processing area but normal adaptation for background areas. In the present study, 75 young and old adults (half East Asian and halfWestern) were tested in an fMR-adaptation study to examine differences in object and background processing as well as object-background binding. We found equivalent background processing in the parahippocampal gyrus in all four groups, diminished binding processes in the hippocampus in elderly East Asians and Westerners, and diminished object processing in elderly versus young adults in the lateral occipital complex. Moreover, elderly East Asians showed significantly less adaptation response in the object areas than did elderly Westerners. These findings demonstrate the malleability of perceptual processes as a result of differences in cohort-specific experiences or in cultural exposure over time.