PeakAffectDS

Contact Information If you would like further information about PeakAffectDS, to purchase a commercial license, or if you experience any issues downloading files, please contact us at [e-mail]. Description PeakAffectDS contains 663 files (total size: 1.84 GB), consisting of 612 physiology files, and 51 perceptual rating files. The dataset contains 51 untrained research participants (39 female, 12 male), who had their body physiology recorded while watching movie clips validated to induce strong emotional reactions. Emotional conditions included: calm, happy, sad, angry, fearful, and disgust; along with baseline a neutral condition. Four physiology channels were recorded with a Biopac MP36 system: two facial muscles with fEMG (zygomaticus major, corrugator supercilii) using Ag/AgCl electrodes, heart activity with ECG using a 1-Lead, Lead II configuration, and respiration with a wearable strain-gauge belt. While viewing movie clips, participants indicated in real-time when they experienced a "peak" emotional event, including: chills, tears, or the startle reflex. After each clip, participants further rated their felt emotional state using a forced-choice categorical response measure, along with their felt Arousal and Valence. All data are provided in plaintext (.csv) format. Physiology files Each participant has 12 .CSV physiology files, consisting of 6 Emotional conditions, and 6 Neutral baseline conditions. All physiology channels were recorded at 2000 Hz. A 50Hz notch filter was then applied to fEMG and ECG channels to remove mains hum. Each .CSV file contains 6 columns, in order from left to right: Sample timestamp (units: seconds) EMG Zygomaticus (units: millivolts) EMG Corrugator (units: millivolts) ECG (units: millivolts) Peak event makers: 0 = no event, 1 = chills, 2 = tears, 3 = startle Perceptual files There are 51 perceptual ratings files, one for each participant. Each .CSV file contains 4 columns, in order from left to right: Filename of presented stimulus (see File naming Convention, below) Felt emotional response: 1 = neutral, 2 = calm, 3 = happy, 4 = sad, 5 = angry, 6 = fearful, 7 = disgust Felt Valence, ranging from: 1 = Very negative, to 7 = Very positive Felt Arousal, ranging from: 1 = Very low, to 7 = Very high File naming convention Each of the 612 physiology files has a unique filename. The filename consists of a 3-part numerical identifier (e.g., 09-02-03.csv). The first identifier refers to the participant's ID (09), while the remaining two identifiers refer to the stimulus presented for that recording (02-03.mp4); these identifiers define the stimulus characteristics: Participant: 01 = participant 1, 02 = participant 2, ..., 51 = participant 51. Emotion: 01 = neutral, 02 = calm, 03 = happy, 04 = sad, 05 = angry, 06 = fearful, 07 = disgust. Stimulus set. For Emotional files: 01 = group 1, 02 = group 2, 03 = group 3. For Neutral files: 01 = instance 1, 02 = instance 2, ..., 06 = instance 6. Filename example: 09-02-03.csv Participant 9 (09) Calm (02) Stimulus Set 3 (03) Filename example: 09-01-05.csv Participant 9 (09) Neutral (01) Instance 5 (05) Methods A 1-way mixed-design was used, with a within-subjects factor Emotion (6 levels: Calm, Happy, Sad, Angry, Fearful, Disgust) and a between-subjects factor Stimulus Set (3 levels). Trials were blocked by Affect Condition (Baseline, Emotional), with each participant presented 6 blocked trials: Baseline (neutral), then Emotional (Calm, ..., Disgust). This design reduced potential contamination from preceeding emotional trials, by ensuring that participant's physiology began close to a resting baseline for emotional conditions. Emotion was presented in pseudorandom order using a carryover balanced generalised Youden design, generated by the crossdes package in R. Eighteen emotional movie clips were used as stimuli, with three instances for each emotion category (6x3). Clips were then grouped into one of three Stimulus Sets, with participants assigned to a given Set using Block randomisation. For example, participants assigned to Stimulus Set 1 (PID: 1, 4, 7, ...) all saw the same movie clips, but these clips differed to those in Sets 2 and 3. Six Neutral baseline movie clips were used as stimuli, with all participants viewing the same neutral clips, with their order also generated with a Youden design. Stimulus duration varied, with clips lasting several minutes. Lengthy clips without repetition were used to help ensure that participants became engaged, and experienced genuine, strong emotional responses. Participants were instructed to immediately indicate using the keyboard when experiencing a "peak" emotional event, including: chills, tears, or startle. Participants were permitted to indicate multiple events in a single trial, and identified the type of the evens at the trial feedback stage, along with ratings of emotional category, arousal, and valence. The concept of peak physiological events was explained at the beginning of the experiment, but the three states were not described as being associated with any particular emotion or valence. License information PeakAffectDS is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, CC BY-NC-SA 4.0. Citing PeakAffectDS Greene, N., Livingstone, S. R., & Szymanski, L. (2022). PeakAffectDB [Data set]. Zenodo. https://doi.org/10.5281/zenodo.6403363## 联系方式 若您需要获取PeakAffectDS的更多相关信息、申请商业授权，或在下载文件过程中遇到任何问题，请通过邮箱[e-mail]与我们取得联系。 ## 数据集概述 PeakAffectDS共包含663个文件，总大小为1.84 GB，其中包括612个生理信号文件与51个感知评分文件。本数据集招募了51名未经过训练的研究参与者（39名女性，12名男性），参与者在观看经过效度验证可诱发强烈情绪反应的电影片段时，其身体生理信号被同步记录。实验设置的情绪状态包括平静、快乐、悲伤、愤怒、恐惧与厌恶，同时包含中性基线条件。 实验采用Biopac MP36系统记录了4路生理信号：使用Ag/AgCl电极采集的面部两块肌肉的表面肌电（fEMG）信号，分别为颧大肌（zygomaticus major）与皱眉肌（corrugator supercilii）；采用1导联II导联配置采集的心电图（ECG）信号以记录心脏活动；以及佩戴式应变片腰带采集的呼吸信号。在观看电影片段期间，参与者需实时标记自身经历的“峰值”情绪事件，包括寒颤、流泪或惊跳反射。每段片段观看结束后，参与者需通过强制选择分类量表进一步评估自身感受到的情绪状态，并完成唤醒度（Arousal）与效价（Valence）评分。所有数据均以纯文本（.csv）格式提供。 ## 生理信号文件 每位参与者对应12个.csv格式生理文件，分别对应6种情绪条件与6种中性基线条件。所有生理通道的采样率均为2000 Hz。随后对表面肌电与心电图通道施加50 Hz陷波滤波器以去除市电干扰。每个.csv文件包含6列数据，按从左至右顺序依次为：样本时间戳（单位：秒）、颧大肌肌电信号（单位：毫伏）、皱眉肌肌电信号（单位：毫伏）、心电图信号（单位：毫伏）、峰值事件标记：0 = 无事件，1 = 寒颤，2 = 流泪，3 = 惊跳反射。 ## 感知评分文件 共包含51个感知评分文件，每位参与者对应1个文件。每个.csv文件包含4列数据，按从左至右顺序依次为：呈现的刺激文件名（详见下文文件命名规范）、主观感受到的情绪反应：1 = 中性，2 = 平静，3 = 快乐，4 = 悲伤，5 = 愤怒，6 = 恐惧，7 = 厌恶；主观效价评分，取值范围为1 = 极负面至7 = 极正面；主观唤醒度评分，取值范围为1 = 极低至7 = 极高。 ## 文件命名规范 612个生理信号文件均拥有唯一文件名，文件名由3段数字标识符组成（例如：09-02-03.csv）。第一段标识符为参与者ID（如09代表第9号参与者），后两段标识符对应本次记录所使用的刺激素材（02-03.mp4），具体含义如下： 1. 参与者编号：01 = 参与者1，02 = 参与者2，……，51 = 参与者51 2. 情绪类别：01 = 中性，02 = 平静，03 = 快乐，04 = 悲伤，05 = 愤怒，06 = 恐惧，07 = 厌恶 3. 刺激集：情绪类文件中，01 = 组1，02 = 组2，03 = 组3；中性文件中，01 = 实例1，02 = 实例2，……，06 = 实例6 文件名示例： - 09-02-03.csv：第9号参与者、情绪类别为平静、刺激集3 - 09-01-05.csv：第9号参与者、中性基线、实例5 ## 实验方法 本研究采用单因素混合实验设计，其中被试内因素为情绪类型（共6个水平：平静、快乐、悲伤、愤怒、恐惧、厌恶），被试间因素为刺激集（共3个水平）。实验试次按情绪条件（基线、情绪）进行分组，每位参与者需完成6组试次：中性基线试次，随后为情绪试次（平静至厌恶）。该设计通过确保参与者在进入情绪试次前的生理状态接近静息基线，从而降低先前情绪试次带来的潜在污染。情绪试次采用带有平衡延续效应的广义尤登设计（generalised Youden design）进行伪随机排列，该设计通过R语言的crossdes包生成。 实验共使用18段情绪电影片段作为刺激素材，每种情绪类别对应3段片段（6种情绪×3个实例）。随后将片段划分为3个刺激集，通过区组随机化将参与者分配至指定刺激集：例如分配至刺激集1的参与者（编号1、4、7……）将观看完全相同的电影片段，且该片段集与刺激集2、3的素材存在差异。实验同时使用6段中性基线电影片段作为刺激素材，所有参与者均观看相同的中性片段，其呈现顺序同样通过尤登设计生成。 刺激片段的时长存在差异，单段片段时长为数分钟。采用无重复的长时片段旨在确保参与者能够充分投入，并产生真实且强烈的情绪反应。参与者被要求在经历“峰值”情绪事件（寒颤、流泪或惊跳反射）时立即通过键盘进行标记。参与者可在单次试次中标记多个事件，并在试次反馈阶段明确事件类型，同时完成情绪类别、唤醒度与效价的评分。实验开始前已向参与者解释峰值生理事件的概念，但未将三种事件类型与特定情绪或效价相关联。 ## 许可信息 PeakAffectDS采用知识共享署名-非商业性使用-相同方式共享4.0国际许可协议（Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License，CC BY-NC-SA 4.0）进行发布。 ## 引用说明 Greene, N., Livingstone, S. R., & Szymanski, L. (2022). PeakAffectDB [Data set]. Zenodo. https://doi.org/10.5281/zenodo.6403363