Ushakov V L, Verkhliutov V M, Sokolov P A, Ublinskiĭ M V, Strelets V B, Agrafonov A Iu, Petriaĭkin A V, Akhadov T A
Zh Vyssh Nerv Deiat Im I P Pavlova. 2011 Sep-Oct;61(5):553-64.
In 10 healthy volunteers, brain tomograms were recorded using an fMRI scanner with a 3T-field magnet. Emotionally neutral and emotionally involving videos were used for stimulation. Registration consisted of seven series: two series of viewing a fixation point and two kinds of video clips, one series of viewing of a succession of two types of video clips, two series of watching videos with subsequent recall, and two series of viewing the fixation point followed by recall of content online. Viewing content online caused the greatest degree of metabolism increase localized in the visual cortex. This activation was more pronounced during the presentation of an emotionally involving video clip. In addition to the occipital lobe, it actively involved the temporal, parietal and, to a lesser extent, the frontal cortex. Activation of the motor cortex was detected only in some subjects. The "interference" effect in which the increase in metabolism was minimal was observed during a consequent demonstration of video-clips. Immediate recall of video-clips after viewing caused the greatest activation of the posterior frontal and motor cortex. Delayed recall activated mostly the anterior frontal cortex. There was a decrease of metabolism in the visual cortex during the recall. The greatest reduction in the visual cortex was observed during immediate recall. Immediate and delayed recall activated the structures associated with the maintenance of consciousness, memory and a system of mirror neurons.
在10名健康志愿者中,使用具有3T磁场的功能磁共振成像(fMRI)扫描仪记录脑部断层扫描图像。使用情绪中性和涉及情绪的视频进行刺激。记录包括七个系列:两个观看固定点的系列和两种视频片段,一个观看两种类型视频片段连续播放的系列,两个观看视频后回忆的系列,以及两个观看固定点后在线回忆内容的系列。在线观看内容导致视觉皮层局部代谢增加程度最大。在播放涉及情绪的视频片段时,这种激活更为明显。除枕叶外,它还积极涉及颞叶、顶叶,在较小程度上涉及额叶皮层。仅在一些受试者中检测到运动皮层的激活。在随后展示视频片段期间观察到代谢增加最小的“干扰”效应。观看后立即回忆视频片段导致额叶后部和运动皮层的激活最大。延迟回忆主要激活额叶前部皮层。回忆期间视觉皮层的代谢降低。在立即回忆期间观察到视觉皮层的最大减少。立即和延迟回忆激活了与意识维持、记忆和镜像神经元系统相关的结构。