Pictures of appetizing foods activate gustatory cortices for taste and reward
Pictures of appetizing foods activate gustatory cortices for taste and reward
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DOI：
10.1093/cercor/bhi038
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发表时间：
2005-10-01
期刊：
影响因子：
3.7
通讯作者：
Barsalou, LW
中科院分区：
文献类型：
--
作者：
Simmons, WK;Martin, A;Barsalou, LW
越来越多的研究表明，概念被表征为分布在大脑特定模态区域的属性信息回路。目前的研究探讨了一个重要的，但未充分开发的类别，食品的分布式代表。在事件相关功能磁共振成像过程中，参与者观看了开胃食物的图片（沿着有位置的图片进行比较）。与位置图片相比，食物图片激活了右颞叶和左眶额皮层，这两个味觉加工区。食物图片也激活了视觉皮层中代表物体形状的区域。这些区域共同构成了一个代表食物知识的分布式神经回路。这个回路不仅在品尝实际食物时变得活跃，而且在观看食物图片时也变得活跃。通过模式完成过程，食物图片激活回路中的味觉区，产生关于味觉的概念推理。这些推理与模态知识理论相一致，是特定于模态的加工过程的重演。
Increasing research indicates that concepts are represented as distributed circuits of property information across the brain's modality-specific areas. The current study examines the distributed representation of an important but under-explored category, foods. Participants viewed pictures of appetizing foods (along with pictures of locations for comparison) during event-related fMRI. Compared to location pictures, food pictures activated the right insula/operculum and the left orbitofrontal cortex, both gustatory processing areas. Food pictures also activated regions of visual cortex that represent object shape. Together these areas contribute to a distributed neural circuit that represents food knowledge. Not only does this circuit become active during the tasting of actual foods, it also becomes active while viewing food pictures. Via the process of pattern completion, food pictures activate gustatory regions of the circuit to produce conceptual inferences about taste. Consistent with theories that ground knowledge in the modalities, these inferences arise as reenactments of modality-specific processing.