作者
Ethan Knights, Courtney Mansfield, Diana Tonin, Janak Saada, Fraser W Smith, Stéphanie Rossit
发表日期
2021/6/16
期刊
Journal of Neuroscience
卷号
41
期号
24
页码范围
5263-5273
出版商
Society for Neuroscience
简介
Most neuroimaging experiments that investigate how tools and their actions are represented in the brain use visual paradigms where tools or hands are displayed as 2D images and no real movements are performed. These studies discovered selective visual responses in occipitotemporal and parietal cortices for viewing pictures of hands or tools, which are assumed to reflect action processing, but this has rarely been directly investigated. Here, we examined the responses of independently visually defined category-selective brain areas when participants grasped 3D tools (N = 20; 9 females). Using real-action fMRI and multivoxel pattern analysis, we found that grasp typicality representations (i.e., whether a tool is grasped appropriately for use) were decodable from hand-selective areas in occipitotemporal and parietal cortices, but not from tool-, object-, or body-selective areas, even if partially overlapping …
引用总数
20212022202320242683
学术搜索中的文章