作者
Wim Vanduffel, Denis Fize, Joseph B Mandeville, Koen Nelissen, Paul Van Hecke, Bruce R Rosen, Roger BH Tootell, Guy A Orban
发表日期
2001/11/20
期刊
Neuron
卷号
32
期号
4
页码范围
565-577
出版商
Elsevier
简介
To reduce the information gap between human neuroimaging and macaque physiology and anatomy, we mapped fMRI signals produced by moving and stationary stimuli (random dots or lines) in fixating monkeys. Functional sensitivity was increased by a factor of ∼5 relative to the BOLD technique by injecting a contrast agent (monocrystalline iron oxide nanoparticle [MION]). Areas identified as motion sensitive included V2, V3, MT/V5, vMST, FST, VIP, and FEF (with moving dots), as well as V4, TE, LIP, and PIP (with random lines). These regions sensitive for moving dots are largely in agreement with monkey single unit data and (except for V3A) with human fMRI results. Moving lines activate some regions that have not been previously implicated in motion processing. Overall, the results clarify the relationship between the motion pathway and the dorsal stream in primates.
引用总数
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