Representation of time in the brain

我们运用心理物理学和神经成像的方法，研究了大脑如何在时间上对事件进行排序。我们还记录了行为猴子的神经活动，以解释为什么当两个连续的视觉刺激在眼跳运动开始之前传递时，时间顺序判断被颠倒。结果与我们的假设(运动投射假说)基本一致，即事件的时间顺序是由顶叶和前额叶皮质刺激的空间表征与多感觉旁皮质的“运动”或“变化”表征相结合而确定的。

We studied how the brain orders events in time by applying methods in psychophysics and neuroimaging. We also recorded neural activities from behaving monkeys to elucidate why temporal order judgment is reversed when two successive visual stimuli are delivered just prior to the onset of saccadic eye movements. Results generally agreed with our hypothesis(motion projection hypothesis) that the temporal order of events is determined by combining spatial representations of stimuli in the parietal and prefrontal cortices with representations of" motion" or" changes" in the multisensory perisylvian cortex.