Coleston D M, Kennard C
Academic Unit of Neuroscience, Charing Cross and Westminster Medical School, London, UK.
Cephalalgia. 1995 Oct;15(5):396-8; discussion 335. doi: 10.1046/j.1468-2982.1995.1505396.x.
Reports of sensitivity to striped patterns and to flickering lights are not uncommon in migraineurs. Only recently, however, have objective methods been used to assess the visual sensitivity of these patients, with emphasis on their responses to spatial stimuli; responses to temporal information have been largely neglected on an experimental level. The "critical flicker fusion" (CFF) test was performed by 25 migraineurs with aura, 25 migraineurs without aura, and 25 control subjects. The CFF test is a quick, simple technique which provides information concerning the temporal responsiveness of the visual system; a sensitivity threshold is measured. A significant group difference between the migraineurs without aura and the control subjects emerged (p = 0.01). Control subjects had the highest CFF threshold, migraineurs with aura the next highest, and migraineurs without aura the lowest threshold.
偏头痛患者对条纹图案和闪烁灯光敏感的报告并不少见。然而，直到最近才有客观方法用于评估这些患者的视觉敏感度，重点是他们对空间刺激的反应；在实验层面上，对时间信息的反应在很大程度上被忽视了。25名有先兆偏头痛患者、25名无先兆偏头痛患者和25名对照受试者进行了“临界闪烁融合”（CFF）测试。CFF测试是一种快速、简单的技术，可提供有关视觉系统时间反应性的信息；测量敏感度阈值。无先兆偏头痛患者与对照受试者之间出现了显著的组间差异（p = 0.01）。对照受试者的CFF阈值最高，有先兆偏头痛患者其次，无先兆偏头痛患者的阈值最低。
