EMPA dataset: a multimodal dataset for pain assessment with emotional modulation
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The EMPA dataset was collected under the scope of the Emotional Modulation in Pain Assessment (EMPA) project (DOI: 10.54499/2022.05005.PTDC). This research encompassed the design, implementation and feasibility's assessment of a novel protocol to study the role of emotions in pain, by collecting emotional and physiological data, such as Electrocardiogram, Electrodermal Activity, and surface Electromyogram signals. The proposed protocol resources on emotion-inducing videos (film excerpts) to assess the influence of emotional response on pain, and comprised three emotional sessions, negative, positive, and neutral, which were performed through videos of excerpts of terror, comedy, and documentary films, respectively, followed by pain induction using a Cold Pressor Task (CPT), involving placing a hand in cold water. Along the protocol, the pain perception was evaluated using a 0-10 numerical rating scale and by registering the time from the pain stimulus beginning to the Pain and Tolerance Thresholds.
EMPA数据集是在“疼痛评估中的情绪调节（Emotional Modulation in Pain Assessment, EMPA）”项目框架下采集的（DOI: 10.54499/2022.05005.PTDC）。本研究涵盖了一项用于探究情绪在疼痛中作用的新型实验范式的设计、实现与可行性评估，通过采集情绪与生理数据——包括心电图（Electrocardiogram）、皮肤电活动（Electrodermal Activity）以及表面肌电（surface Electromyogram）信号——开展相关研究。该实验范式依托情绪诱导视频（电影片段）评估情绪反应对疼痛的影响，共包含三个情绪阶段，分别对应负性、正性与中性情绪，采用恐怖、喜剧与纪录片电影片段作为情绪诱导素材；随后通过冷压任务（Cold Pressor Task, CPT）进行疼痛诱导，具体操作是将手部浸入冷水之中。在整个实验流程中，研究人员采用0至10的数字评分量表评估疼痛感知，并记录从疼痛刺激开始至疼痛阈值与耐受阈值的时长。
