Department of Human Movement and Health, Graduate School of Medical Science, Kanazawa University, Takara-machi, Kanazawa, Japan.
Int J Neurosci. 2009;119(10):1925-40. doi: 10.1080/00207450802333912.
We investigated the effect of vibration stimulation to the neck extensors on reaction time in various saccades that are controlled by different higher neural system. Visually guided, memory-guided and anti saccades were performed under no-vibration and vibration (frequency, 100 Hz; amplitude, 0.5 mm) applied to the trapezius muscles. For memory-guided and anti saccades, the reaction time under the vibration was significantly shorter than that under no-vibration. A significant correlation was found between the shortening of reaction time for memory-guided saccade and that for visually guided saccade (r = 0.726, p <.01), but no significant correlation was found between anti-saccade and other saccades. These findings suggested that the higher saccadic neural pathway was strongly activated during the vibration stimulation to the neck extensors, and furthermore the effect of activation on facilitatory and inhibitory functions differed among the three types of saccades.
我们研究了颈部伸肌的振动刺激对不同由高级神经系统控制的扫视反应时间的影响。在无振动和振动（频率为 100Hz，幅度为 0.5mm）条件下进行视觉引导、记忆引导和反向扫视。对于记忆引导和反向扫视，振动下的反应时间明显短于无振动下的反应时间。在记忆引导扫视的反应时间缩短与视觉引导扫视的反应时间缩短之间存在显著相关性（r = 0.726，p<.01），但反向扫视与其他扫视之间没有显著相关性。这些发现表明，在振动刺激颈部伸肌时，高级扫视神经通路被强烈激活，而且激活对三种扫视的促进和抑制功能的影响不同。
