Brain activation related to combinations of gaze position, visual input, and goal-directed hand movements.
Brain activation related to combinations of gaze position, visual input, and goal-directed hand movements.
复制标题
大脑激活与注视位置、视觉输入和目标导向的手部动作的组合有关。
DOI:
10.1093/cercor/bhq205
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Sanes,JeromeN
中科院分区:
文献类型:
--
作者:
Bédard,Patrick;Wu,Min;Sanes,JeromeN
Humans reach to and acquire objects by transforming visual targets into action commands. How the brain integrates goals specified in a visual framework to signals into a suitable framework for an action plan requires clarification whether visual input, per se, interacts with gaze position to formulate action plans. To further evaluate brain control of visual–motor integration, we assessed brain activation, using functional magnetic resonance imaging. Humans performed goal-directed movements toward visible or remembered targets while fixating gaze left or right from center. We dissociated movement planning from performance using a delayed-response task and manipulated target visibility by its availability throughout the delay or blanking it 500 ms after onset. We found strong effects of gaze orientation on brain activation during planning and interactive effects of target visibility and gaze orientation on movement-related activation during performance in parietal and premotor cortices (PM), cerebellum, and basal ganglia, with more activation for rightward gaze at a visible target and no gaze modulation for movements directed toward remembered targets. These results demonstrate effects of gaze position on PM and movement-related processes and provide new information how visual signals interact with gaze position in transforming visual inputs into motor goals.
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影响因子:
2.5
作者:
Beurze, S. M.;de Lange, F. P.;Medendorp, W. P.
通讯作者:
Medendorp, W. P.
影响因子:
2
作者:
C. Jouffrais;D. Boussaoud
通讯作者:
D. Boussaoud
影响因子:
2.5
作者:
Ferraina, S;Battaglia-Mayer, A;Caminiti, R
通讯作者:
Caminiti, R
DOI:
10.1523/jneurosci.23-15-06209.2003
发表时间:
2003-07
期刊:
The Journal of Neuroscience
影响因子:
--
作者:
W. Medendorp;Herbert C. Goltz;T. Vilis;J. Crawford
通讯作者:
W. Medendorp;Herbert C. Goltz;T. Vilis;J. Crawford
影响因子:
5.3
作者:
Yuval Yanai;Nofya Adamit;Z. Israel;R. Harel;Y. Prut
通讯作者:
Y. Prut