FMRI evidence for a 'parietal reach region' in the human brain
FMRI evidence for a 'parietal reach region' in the human brain
复制标题
DOI：
10.1007/s00221-003-1587-1
复制
发表时间：
2003-11-01
影响因子：
2
通讯作者：
Goodale, MA
中科院分区：
文献类型：
--
作者：
Connolly, JD;Andersen, RA;Goodale, MA
事件相关的功能性磁共振成像被用来检测当受试者指向同一空间位置时后顶叶皮层的激活情况。在记忆延迟试验中，当受试者计划指向一个特定的位置时，一个与猴顶叶到达区域（PRR）相对应的区域比在受试者计划向同一位置进行扫视的试验中更优先做出反应。因此，我们得出结论，该区域的激活与特定的运动意图有关；也就是说，它编码了与受试者向特定空间位置进行特定运动的意图相关的信息。
Event-related functional magnetic resonance imaging was used to examine activation in the posterior parietal cortex when subjects made pointing movements or saccades to the same spatial location. One region, well positioned to be homologous to the monkey parietal reach region (PRR), responded preferentially during memory-delay trials in which the subject planned to point to a specific location as compared to trials in which the subject planned to make a saccade to that same location. We therefore conclude that activation in this region is related to specific motor intent; i.e. it encodes information related to the subject's intention to make a specific movement to a particular spatial location.