Kato C, Matsuo K, Matsuzawa M, Moriya T, Glover G H, Nakai T
Department of Management and Information Science, Toyohashi Sozo College, 20-1 Matsushita, Ushikawa-cho, Toyohashi 440-8511, Japan.
Neurosci Lett. 2001 Nov 13;314(1-2):5-8. doi: 10.1016/s0304-3940(01)02207-8.
Brain activation induced by endogenous orienting with a motor response was investigated by functional magnetic resonance imaging. We conducted four cued-attention experiments in which peripheral attention was caused by one of three symbolic pointers (eyes, squares as artificial eyes, or an arrow) that was predictive or not predictive of the target location. Attentional shift caused by the predictive and non-predictive cues induced right and left parietal activation across cue modalities, respectively. Regardless of the predictability of the target location, the eyes and arrow induced left parietal and frontal activation, and the arrow induced left parietal activation more than the squares. These results suggested that the left parieto-frontal network was involved in motor attention caused by natural or familiar pointers, whereas the right parietal cortex was involved in endogenous orienting.
通过功能磁共振成像研究了由内源性定向与运动反应诱发的脑激活。我们进行了四项线索注意实验，其中外周注意由三个符号指针（眼睛、作为人工眼睛的正方形或箭头）之一引起，这些指针可预测或不可预测目标位置。预测性和非预测性线索引起的注意转移分别在不同线索模式下诱发了右侧和左侧顶叶激活。无论目标位置的可预测性如何，眼睛和箭头均诱发了左侧顶叶和额叶激活，且箭头比正方形更易诱发左侧顶叶激活。这些结果表明，左顶叶-额叶网络参与了由自然或熟悉的指针引起的运动注意，而右侧顶叶皮层则参与了内源性定向。
