Facial expressions modulate pain perception in patients with chronic migraine

This is the processed data for the manuscript "Matamala-Gomez Marta, Bottiroli ara, Sances Grazia, Allena Marta, De Icco Roverto, Ghiotto Natascia, Guaschino Elena, Sandrini Giorgio, and Tassorelli Cristina (2022) Facia Expressions modulate pain perception in patients with chronic migraine. Cephalalgia. doi: 10.1177/03331024221075081". Dataset refers to the effects of the exposure to different visual feedback conditions on pain perception<br> in patients with chronic migraine. It is a 1X4 within-subject study design, in which 38 female chronic migraine patients were exposed to different visual stimuli – positive face, neutral face, negative face, and control (white screen) – during a migraine attack. Visual stimuli were presented 3 times in a randomized order (each condition lasted 40 seconds). Migraine pain ratings and identification<br> scores were assessed immediately after the observation of each visual condition.本数据集对应论文《Matamala-Gomez Marta、Bottiroli ara、Sances Grazia、Allena Marta、De Icco Roverto、Ghiotto Natascia、Guaschino Elena、Sandrini Giorgio 及 Tassorelli Cristina（2022）：面部表情调节慢性偏头痛患者的疼痛感知》，该论文发表于*Cephalalgia*，DOI: 10.1177/03331024221075081，此为该论文的处理后数据。本数据集聚焦不同视觉反馈条件对慢性偏头痛患者疼痛感知的调控效应。 本研究采用1×4被试内实验设计（within-subject study design），共纳入38名女性慢性偏头痛患者，在患者偏头痛发作期间，向其呈现四类视觉刺激：正性面部表情、中性面部表情、负性面部表情及对照刺激（白色屏幕）。视觉刺激以随机顺序重复呈现3次，每种刺激条件持续40秒。 在每类视觉刺激观察结束后，即刻对患者的偏头痛疼痛评分与识别得分进行评估。