作者
Lars Strother, Zhiheng Zhou, Tutis Vilis, Jacqueline Snow
发表日期
2016/8/31
期刊
Journal of Vision
卷号
16
期号
12
页码范围
514-514
出版商
The Association for Research in Vision and Ophthalmology
简介
Lateral occipito-temporal cortex (LOTC) participates in haptic object recognition but its role is controversial. We used fMRI to test whether or not its role is limited to visual imagery of object shape. Participants palpated recognizable objects using the right hand, with the hand positioned either to the right or left of the body midline. Position of fixation was varied across blocks, so that gaze direction was either straight ahead, to the left or to the right of body midline; palpated objects were always occluded from view. Our results showed that left LOTC was activated more strongly than right LOTC, even when participants palpated objects on the left side of the body, which suggests that LOTC represents objects with respect to the hand rather than side of body. LOTC activation was nevertheless modulated by side of palpation. Additionally, LOTC responses were modulated by gaze direction—the strongest activation was …
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